TECHNICAL FIELD
[0001] The present disclosure generally relates to a field of air purifiers equipped inside a vehicle. More particularly, the present disclosure relates to operating air purifier placed inside the vehicle remotely.
BACKGROUND
[0002] Air pollution has become a common problem especially in the big cities of the world. Every year several people face critical health issues because of increasing air pollution. One major place where the people face air pollution is inside their vehicles while travelling to their offices in the mornings or evenings. There are times when the air pollution inside the vehicle is even more than the outside environment. This may be primarily because of the reasons that the vehicles are closed, have minimum air circulation, cleaning the interiors of the vehicles is done very infrequently, and the dust simply collects or pets dust-offs, cigarette smoke and other vehicular fumes stay inside the vehicles.
[0003] Currently, there are several techniques to clean the vehicle. The most famous techniques are use of vehicle fresheners and ionizers. The techniques are not that effective as the vehicle fresheners simply mask the stench but do not clean the air pollutants inside the vehicle. Similar problem arises with ionizers which clean the vehicle by releasing negative ions into the vehicle environment. The ions react with certain types of pollutants and settle them down. Also, ionizers have very limited effectiveness against pm2.5 and pmlO size air pollutants. Also, negative ions react with oxygen to form ozone which is very harmful for human health.
[0004] Another common solution which is used by people nowadays is the use of air purifiers to clean the vehicle. The existing air purifiers effectively clean the pm2.5 and pmlO using HEPA filters and a motor fan. The existing air purifiers take around 15 minutes to clean the air inside the vehicle. However, the major problem that exists with the existing air purifiers is that a user starts the air purifier only after sitting inside the vehicle. In a situation where an office of a user is 15 minutes away

from his home and the user travels by the vehicle equipped with an air purifier, the user will arrive at his destination breathing unhealthy air and the purpose of having an air purifier will be lost.
[0005]. Thus, a conventional air purifier starts operating only when the vehicle's ignition is turned ON.
[0006] Thus, there is a need in the art to provide a solution to the above problems.
SUMMARY
[0007] In one non-limiting example, an air purifier for a vehicle is provided. The air purifier comprises an in-built power source, a transceiver unit configured to receive one or more activation commands from a user over a first network or a second network, an activation unit coupled to the transceiver unit and configured to activate one or more sensors in response to receiving one or more activation commands, wherein the one or more sensors are configured to detect one or more pollutant particles in the vehicle upon activation of the one or more sensors, and an air purifying unit coupled to the activation unit and configured to remove the pollutant particles present in the vehicle based on detected one or more pollutant particles inside the vehicle.
[0008] In another non-limiting example, a method for operating an air purifier placed inside a vehicle is provided. The method comprises receiving one or more activation commands from a user, wherein the one or more activation commands are received over a first network or a second network, activating one or more sensors in response to the received one or more activation commands, wherein the one or more sensors are configured to detect one or more pollutant particles in the vehicle, removing the one or more pollutant particles from the vehicle based on the detected one or more pollutant particles in the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed embodiments. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system and/or methods in accordance with embodiments of the present subject matter are now described, by way of example only, and with reference to the accompanying figures, in which:
[0010] Fig. 1 illustrates an exemplary embodiment in accordance with one embodiment of the present invention.
[0011] Fig. 2 illustrates block diagram of an air purifier in accordance with one embodiment of the present invention.
[0012] Figure 3 illustrates an application running on handheld device available with user in accordance with one embodiment of the present invention.
[0013] Figure 4 shows an example of schedule section in accordance with one embodiment of the present invention.
[0014] Figure 5 shows a route section in accordance with one embodiment of the present invention.
[0015] Figure 6 shows a route section in accordance with one embodiment of the present invention.
[0016] Figure 7 shows example of bottom layer in accordance with one embodiment of the present invention.
[0017] Figure 8 shows an example of exposed copper surface below fan in accordance with one embodiment with the present invention.

[0018] Figure 9 shows method of operating air purifier in accordance with one embodiment of the present invention.
[0019] It should be appreciated by those skilled in the art that any block diagrams herein represent conceptual views of illustrative systems embodying the principles of the present subject matter. Similarly, it will be appreciated that any flow charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes which may be substantially represented in computer readable medium and executed by a computer or processor, whether or not such computer or processor is explicitly shown.
DETAILED DESCRIPTION
[0020] In the present document, the word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or implementation of the present subject matter described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
[0021] While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
[0022] The terms "comprises", "comprising", "include(s)", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, system or method that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or system or method. In other words, one or more elements in a system or apparatus proceeded by "comprises... a" does not, without more

constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[0023] In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
[0024] The present invention will be described herein below with reference to the accompanying drawings. In the following description, well known functions or constructions are not described in detail since they would obscure the description with unnecessary detail.
[0025] The present invention provides an air purifier and a method for operating the same.
[0026] Figure 1 describes an air purifier 102 according to the present invention. The air purifier 102 is connected to a server 150 and one or more handheld devices 110. The server 150 may act as a central entity for managing communication between the air purifier 102 and the one or more handheld devices 110. The server 150 may be connected to a first network 104 and a second network 106. The one or more handheld device 110 may be configured to operate the air purifier 102 remotely.. The details regarding the first network 104 and the second network 106 will be described below. Although, one handheld device 110 has been shown in figure 1, there may be any number of handheld devices.
[0027] Referring to figure 2, block diagram of the air purifier 102 is shown. The air purifier 102 includes an in-built power source 202, a transceiver 204, an activation

unit 206, an air purifying unit 208. The air purifier 102 may also include one or more sensors 210 to detect the one or more pollutant particles inside the vehicle. In one embodiment, the air purifier 102 may also include a display section 220. The pollutant particles may include carbon monoxide particles, Sarbanes-Oxley particles, nitrogen dioxide particles, methane, ammonia, chlorofluorocarbons, pm2.5 and pmlO, Sulphur dioxide, Ozone. Each of the blocks are described below.
[0028] The in-built power source 202 comprises one or more DC batteries configured to power the air purifier 102. Conventionally known air purifiers operate on the vehicle batteries. This creates a drawback that the conventional air purifiers work only when the vehicle's ignition is switched ON. However, due to the presence of the in-built power source 202 in the air purifier 102 according to the present invention, the air purifier 102 works without switching ON the ignition of the vehicle.
[0029] The in-built power source 202 may be a Li-Po battery of 3.7V. Li-Po and 3.7V is only for exemplary purpose and may include any battery type of any capacity. The in-built power source 202 may be configured to charge itself through the vehicles battery whenever the ignition of the vehicle is switched ON.
[0030] The transceiver unit 204 is configured to receive one or more activation commands from a user over the first network 104 or the second network 106 from the server 150. The transceiver unit may comprise of one or more antennas, a modulator and demodulator, and a reception and a transmission unit. The transceiver unit 204 is configured to send and receive commands or data to a handheld device of a user via the server 150. The sending may include acknowledgement message that an activation command have been received.
[0031] One or more activation commands may be received from one or more handheld device 110 available with the user. The handheld device may include, but not limited to, a mobile phone, a table, an iPad, a computer, a laptop, an IoT device, a smart home device, etc. The one or more handheld device 110 may run an application for sending one or more activation commands to the air purifier 102. In

one embodiment, the one or more activation commands may include a command to switch the air purifier 102 ON. In one embodiment, the one or more activation commands may include a command to switch the air purifier 102 OFF.
[0032] The activation unit 206 is coupled to the transceiver unit 204 and is configured to activate one or more sensors 210 placed inside the air purifier 102. The one or more sensors 210 are configured to sense one or more pollutant particles inside the vehicle. The one or more pollutant particles may include, for example, pm2.5 and pmlO size pollutant particles. Thus, upon receiving activation commands from the user, the activation unit 206 activates the one or more sensors 210.
[0033] The air purifying unit 208 is coupled to the activation unit 206 and is configured to remove the detected pollutant particles from the vehicle. The air purifying unit 208 may include a combination of one or more layers of filters. In one embodiment, the air purifying unit 208 may include a 3 layer filter. In another embodiment, the air purifying unit 208 may include a 4 layer filter. In one embodiment, the 3 layer filter may include a HEPA filter. In one embodiment, the 3 layer filter may include Fiberglass filter and/or Polyester and pleated filters.
[0034] In one embodiment, the filters present inside the purifying unit 208 are replaced after a predefined interval of time has elapsed. This may be because of the wear and tear caused to the air filters.
[0035] In one embodiment, the one or more sensors 210 continue to monitor the level of pollutant particles inside the vehicle. This may happen even when the user is present inside the vehicle and is travelling to his workplace (for example). Thus, the air purifier 102 may switch on and off based on the detection of pollutant particles by the one or more sensors. For example, when the number of pollutant particles decreases below a pre-defined threshold, the vehicle is considered to clean and the air purifier 102 switches off. On the other hand, when the number of pollutant particles increases above the pre-defined threshold, the air purifier 102 switches on.

[0036] The display section 220 may be configured to display details relating to pollutant particles and the air purifier 102. For example, as mentioned above, the one or more sensors detect pollutant particles inside the vehicle continuously. Thus, the display section 220 may display the level of pollutant particles. In one embodiment, the display section 220 may also display the type of pollutant particles. The type of pollutant particles may be pm2.5 and pmlO size pollutant particles. The display section 220 of the air purifier may also display battery capacity of the in¬built source 202, the signal strength of the first network 104 and/or the second network 106.
[0037] Referring to figure 1 again, the server 150 may receive one or more activation commands form the one or more handheld devices 110 and may send the one or more activation commands to the air purifier 102. Once the one or more activation commands are received by the server 150, the server 150 may decide which network out of the first network 104 or the second network 106 to choose to send the one or more activation commands to the air purifier 102. In one embodiment, the server 150 may include cloud based services. For example, the server 150 may provide cloud based storage services. The data related to the air purifier may be stored on the cloud based server. In one embodiment, a profile of a user may be stored on the server 150 and/or air purifier 102.
[0038] The first network 104 may include at least one of 2G network, GPRS network, EDGE network, 3G network, 4G network, LTE (long term evolution) network, 5G network, NBIOT network (Narrowband- Internet of thing), CAT-M (category M) network, Bluetooth, Wi-Fi networks. Thus, when the air purifier 102 is connected to the first network 104, the air purifier 102 is configured to receive one or more activation commands through at least one of 2G network, EDGE network, GPRS network, 3G network, 4G network, LTE (long term evolution) network, 5G network, NBIOT network, CAT-M network, Bluetooth network, Wi-Fi network. The networks are not limited to the one listed here and may include any wireless, cellular and/or IP networks.

[0039] The first network 104 may be configured to transmit one or more data packets to the air purifier 102. In one embodiment, the one or more data packets may include MQTT/HTTP packets. In response to the received one or more data packets, the air purifier 102 may be configured to switch ON.
[0040] The second network 106 comprises short messaging services (SMS) over a cellular network. Thus, when the air purifier 102 is connected to the second network 106 the air purifier 102 is configured to receive commands through SMS service.
[0041] During operation of the air purifier 102, a user may send one or more activation commands to the air purifier 102 through handheld device 110. The one or more commands are received by the server 150. In one embodiment, the server may send a packet to the air purifier over the first network and wait for an acknowledgement in return till a certain time. If the server receives the acknowledgement within the certain time the air purifier the server may categorize the air purifier to be having enough signal strength to receive packets over the first network. If the air purifier does not receive an acknowledgement before the certain time, the server may categorize the air purifier to be outside the range of the first network. If the air purifier is categorized to be outside the range of the first network, the server may send the packets via short message service (SMS) over the second network. In one embodiment the packets may be a command to switch the air purifier in the vehicle to an ON or an OFF state. In case the server categorizes the air purifier to be outside the range of the second network, the server may translate the command or packet received from the handheld device to a format which can be sent via SMS and the air purifier is able to decrypt the command and execute the function contained in the command. In another embodiment, the server may send multiple packets to the air purifier in the certain time till the time the acknowledgement is received.
[0042] For example, the vehicle comprising the air purifier 102 is placed at a location (for example in a basement), where the signal strength of the first network 104 may not be sufficient for the air purifier 102 to receive the one or more

activation commands. Since the vehicle did not receive the activation commands, it will not send any acknowledgement to the server. The server may keep sending the activation command till a certain time (time-out) or till the time an acknowledgement is received. If the server does not receive any acknowledgment till the certain time (time-out), the server may convert the activation command into an SMS format and send it over the second network. In an embodiment, the server will keep notifying the user over the handheld device the signal strength of the first network and the second network available at the air purifier.
[0043] In one embodiment, the air purifier 102 may constantly check for the first network 104 and/or the second network 106. However, if neither of the first network 104 or the second network 106 is available, the air purifier 102 exponentially delays the checking of the first network 104 and the second network 106. For example, the air purifier 102 may search for the first network 104 and the second network 106 at T=0, lmin, 3 minutes, 7 minutes, 15 minutes, 30 minutes, where T stands for time. If neither of the first network 104 or the second network 106 is available even after 30 minutes, the air purifier 102 further delays checking for the first network 104 and the second network. For example, after 30 minutes, the air purifier 102 may search for the first network 104 or the second network 106 at T= 60 minutes, 90 minutes, 120 minutes, 150 minutes, where T= time. This is done so as to conserve battery of the air purifier 102 while ensuring least network downtime for the user i.e. avoiding the scenario where the network is available to the air purifier 102 but the air purifier 102 is not connecting as it is waiting for next attempt to connect to the first network 104 or the second network 106. Time T is only for exemplary purposes and is not restricted to the one defined here.
[0044] When the server 150 determines that the signal strength of signals from the first network 104 is above a first pre-defined threshold, the server 150 sends the one or more activation commands to the air purifier 102 via the first network 104. However, when the signal strength of the first network 104 is below the first pre-defined threshold, the server 150 sends the one or more activation commands via

the second network 106. For example, when the vehicle comprising the air purifier 102 is placed at a location (for example in a basement), where the signal strength of the first network 104 may not be sufficient for the air purifier 102 to receive the one or more activation commands.
[0045] In another embodiment, the server 150 continuously monitors a battery capacity of the air purifier 102. This may be done by a packet being sent from the air purifier to the server notifying the server of the battery capacity at the air purifier. In an embodiment, when the battery capacity of the air purifier 102 falls below a second pre-defined threshold, the server 150 sends the activation commands through the second network 106. For example, when the battery capacity is less than 40%, the air purifier 102 may operate using SMS services over the second network. This helps to conserve battery capacity of the air purifier 102.
[0046] In one embodiment, during operation of the air purifier, if the battery capacity of the air purifier 102 falls below the second pre-defined threshold while the air purifier 102 is receiving commands via the first network 104, the server 150 may switch communication with the air purifier 102 from the first network 104 to the second network 106.
[0047] In one embodiment, the air purifier 102 may switch from the first network 104 to the second network 106 when the signal strength from the first network 104 is below the first pre-defined threshold and the battery capacity of the air purifier 102 is below the second pre-defined threshold.
[0048] In one embodiment, the user may set a pre-defined schedule for the air purifier 102 to operate. For example, if the user wants to leave for his office at 10AM, the user may give a command to start the operation of the air purifier 102 at 9:45AM so that by the time the user reaches the vehicle, the user can experience his vehicle free of air pollutants. The pre-defined schedules may be set using the application running on the air purifier 102. The pre-defined schedule of the user may be stored on the server 150 and/or the air purifier 102. The server 150 may operate the air purifier 102 according to the pre-defined schedule of the user.

[0049] In yet another embodiment, the air purifier 102 may analyze usage pattern of the user for operating the air purifier 102. The usage patterns may be stored on the server 150 and/or air purifier 102. The usage patterns may include, for example, analyzing when the user operates the air purifier. For example, if the user leaves for his office daily at 10AM and operates the purifier at 9:45AM daily, the air purifier may analyze and learn the usage pattern of the user for operating the air purifier. Once the air purifier 102 learns the usage patterns, the air purifier 102 is configured to operate based on the learnt usage patterns of the user. Thus, in the above example, if it is determined that the user operates the air purifier 102 daily at 9:45AM, the air purifier 102 is automatically operated at 9:45AM every day.
[0050] To learn the usage patterns, the air purifier 102 may use one or more machine learning algorithms. The machine learning algorithms may include one or more learning models which may be trained based on the usage patterns of the user. To train the one or more learning models, one or more techniques are used, for example, but not limited to 2 stigma model, obtaining feedback from the user. Also whenever the purifier is started and the user starts the vehicle in the predicted time slot, it is counted as a win and the model increases a win data point. If the user does not start the vehicle post the pre-clean, it is taken as a loss data point and the model is adjusted accordingly.
[0051] In one embodiment, one or more profile of the users may be created. The one or more profiles of the user may include learning schedule of the user. The learning schedule may include schedule for switching on and off the air purifier 102. In one embodiment, the profile of the user may be stored on the server 150 and/air purifier 102.
[0052] Referring to figure 3, the application 300 running on the handheld device is shown. The user may send one or more activation commands with the help of the application 300 which may be routed through the server 150 to the air purifier 102. The application 300 may include various sections for operating the air purifier. For example, the application 300 may include a start section 302, a stop section 304,

pollutant particles measure section 306, schedule section 308, fan speed section 310, voice command section 312, battery level section 314, signal strength section 316. The sections are not limited to the one defined here.
[0053] The user may select any of the above sections and the one or more activation commands may be sent to the air purifier 102. The air purifier 102 may send an acknowledgement to the handheld device which may be displayed on the application 300.
[0054] For example, the user may select start section 302 for activating the air purifier 102. Once the start section 302 is selected, the activation command to activate the air purifier is sent to the air purifier 102 via the server 150. As soon as the activation command to start the air purifier 102 is received, the one or more sensors of the air purifier 102 are activated, and detect the pollutant particles in the vehicle. If the pollutant particles are detected inside the vehicle by the air purifier 102, the air purifying unit is activated and is configured to remove the pollutant particles present inside the vehicle. The air purifier 102 may send an acknowledgement to the user that the air purifier 102 has been started via the server 150. The acknowledgment may be shown to the user through the application 300. For example, the message "air purifier switched ON" may be displayed to the user.
[0055] In one embodiment, the user may select the stop section 304 to stop the operation of the air purifier. Once the activation command for stopping the air purifier 102 is received, the air purifier 102 is configured to stop the operation. The air purifier 102 may send an acknowledgement to the user that the air purifier 102 has been stopped. The acknowledgment may be shown to the user through the application 300. For example, the message "air purifier switched OFF" may be displayed to the user.
[0056] In one embodiment, the user may select the pollutant particles measure section 306. When this section is selected, the sensors present inside the air purifier 102 may be activated and may measure the amount of pollutant particles inside the vehicles. After measuring the pollutant particles, the air purifier 102 may send the

amount of pollutant particles present inside the vehicle to the handheld device and the same may be displayed on the application for user to see.
[0057] In one embodiment, the user may select schedule section 308 for setting one or more schedule for operating the air purifier 102. For example, the schedule section 308 may include one or more options for the user to select a date and a time on which the user would like to operate the air purifier 102. Once the schedule is set, the air purifier 102 starts and stop the operation as per the schedule.
[0058] The example of schedule section 308 is shown in Figure 4. As can be seen in figure 4, the schedule section 308 displays a calendar section 402 for selecting a date and a timing section 404 for operating the air purifier. The user may first select the date from the calendar section 402 and then select a time from timing section 404. In an example shown in figure 4, the user selects 05/09/2017 as the date and adjusts the time to3:00PM for operating the air purifier 102. In one embodiment, the schedule section 308 may also ask the user to select the day of the week and time on which the user would like to operate the air purifier 102. In yet another embodiment, the schedule section 308 may ask the user to set predetermined date/time range during which the user would like to operate the air purifier 102. For example, the user may select Monday to Friday, morning 10:00 AM to 10:15 AM as a schedule to operate the air purifier 102. This helps the user to have a different schedule for different days.
[0059] Referring back to fan speed section 310 of figure 3, the user may select different speed of fans placed inside the air purifier 102. The fans may be used for dual functions- dissipate heat and to clean the vehicle. The function of heat dissipation is explained below.
[0060] In one embodiment, the user may operate the air purifier 102 using voice command in the voice command section 312. The voice command section 312 may access a microphone of the handheld device of the user. Further, the voice command section 312 may use speech to text conversion techniques for converting the voice of the user in the form of text. For example, the user may select the voice command

section 312 and may input "switch on air purifier". This input command is converted into text input and transmitted to the air purifier 102 which then switches ON in response to the received command. The steps for switching ON the air purifier have been explained above in the start section 302.
[0061] In one embodiment, the user may desire to check the battery status of the air purifier 102 by selecting battery level section 314. In another embodiment, the battery status may be displayed to the user on the application 300 all the time.
[0062] In one embodiment, the user may check signal strength received by the air purifier 102 by selecting signal strength section 316. This would help the user to identify whether the air purifier 102 is connected to the first network or the second network. Also, this would help the user identify whether the air purifier 102 is operating in a correct manner.
[0063] In one embodiment, the application 300 may also include route section 350. The route section 350 may help the user to identify a route between two places having lowest level of pollution. To show a proper route, the air purifier 102 may also be connected to a pollution database (not shown). The pollution database may include pollution levels or Air quality index (AQI) of different locations. The pollution database may obtain and store pollution levels of different locations using air quality index monitors placed at different locations. The pollution database may be updated after every predetermined interval of time.
[0064] The route section 350 may ask the user to input source and the destination locations. As soon as the user enters the source and the destination locations, the route section 350 may fetch different routes using GPS system. Identifying routes between source and destination is known in the art and hence not defined here. After identifying the routes, the route section 350 fetches the pollution levels of the fetched routes from the pollution database. Fetching routes of different routes would include identifying and fetching pollution level of different locations present on the fetched route i.e. pollution level of a route is obtained by integration of pollution levels present at all the different locations falling within the route. Upon fetching

the pollution levels of fetched routes, the route section 350 may display to the user different routes from source to destination with lowest pollution levels.
[0065] For example, as shown in figure 5, the user may input source location as "Gurugram" and destination location as "Noida". Upon entering, 3 routes are shown to the user to travel from Gurugram to Noida- route 1, route 2 and route 3. Each route shows time to reach the destination. Also, each route shows pollution level along with the route. For example, route 1 shows AQI of 100, route 2 shows AQI of 120 and route 3 shows AQI of 140. Since the route 1 has lowest AQI of 100, the route 1 is displayed as the preferred route to the user. Alternatively, the user can easily select which route to choose considering the AQI and distance to be travelled on the route. In one embodiment, the route which has a distance of 1.25 times the actual distance between the source and the destination is eliminated. This ensures the user reaches the destination with lowest possible AQI and by shortest route.
[0066] In one embodiment, the route section 350 includes time to reach the destination from source is considered while calculating a preferred route for the user. Thus, the motive is to allow a user travelling to destination to inhale as less pollutant particles as possible.
[0067] Figure 6 shows an example of this embodiment. As shown in figure 6, the user may desire from Gurugram to Noida. As shown in the example of figure 6, the route 1 has an AQI of 120 and takes 1 hour 10 minutes for the user to reach the destination whereas route 2 has AQI of 100 and takes 1 hour 14 minutes for the user to reach the destination and route 3 has AQI of 140 and takes 1 hour 21 minutes for the user to reach the destination. In this scenario, the preferred route shown to the user is route 1 even when it has higher AQI then route 2. This is because time required for the user to reach the destination is less in route 1 than in route 2. This ensures that user inhales minimum pollutant particles during his travel.
[0068] In one embodiment, the application 300 may display to the user a temperature of the air purifier 102. The temperature of the air purifier 102 would show if the air purifier 102 is getting over heated during operation.

[0069] To ensure that the air purifier 102 is not heated up during operation, the air purifier 102 includes a heat dissipation section (not shown). Conventional heat sinks provided in apparatus provides for large surface area to dissipate the heat and includes a fan to remove the hot air above the heat sink surfaces. This increases the size of the air purifier and also makes the air purifier bulky. However, since the air purifier according to the present invention has been placed inside a vehicle, there are restrictions for increase in size and the weight.
[0070] To overcome this problem, the heat section according to the present invention includes a 4 layer Printed circuit board (PCB). The 4 layer PCB according to the present invention has a bottom layer made of copper coating which works as large surface area heat sink. The heat from hot PCB components goes through to the other side of the 4 layer PCB through conducting tubes. Thereafter, the fan used for cleaning the air inside the air purifier 102 serves the dual purpose of cleaning the air and also to dissipate heat from the other side of the 4 layer PCB. Figure 7 shows an example 700 of the bottom layer of the 4 layer PCB. In one embodiment, Figure 8 shows an example 800 exposed copper surface (working as heat dissipating section) below the fan.
[0071] In one embodiment, the air purifier 102 may contain two in-built power sources. The purpose of providing two in-built power sources is to ensure that one in-built power source is to run the operation of the air purifier 102 i.e. to operate the air purifying unit of the air purifier 102 while the purpose of the second in-built power source is to make sure that the air purifier is connected to the first network or the second network with sufficient power.
[0072] Referring to figure 9 now, a method for operating the air purifier 102 placed inside a vehicle is depicted. At step 901, the method comprises receiving one or more activation commands from a user, wherein the one or more activation commands are received from a first network or a second network. At step 903, the method comprises activating one or more sensors in response to the received one or

more activation commands, wherein the one or more sensors are configured to detect one or more pollutant particles in the vehicle. At step 905, the method comprises removing the one or more pollutant particles from the vehicle based on the detected one or more pollutant particles in the vehicle.
[0073] The illustrated steps are set out to explain the exemplary embodiments shown, and it should be anticipated that ongoing technological development will change the manner in which particular functions are performed. These examples are presented herein for purposes of illustration, and not limitation. Further, the boundaries of the functional building blocks have been arbitrarily defined herein for the convenience of the description. Alternative boundaries can be defined so long as the specified functions and relationships thereof are appropriately performed. Alternatives (including equivalents, extensions, variations, deviations, etc., of those described herein) will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein. Such alternatives fall within the scope and spirit of the disclosed embodiments. It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise.
[0074] Advantages of the embodiment of the present disclosure are illustrated herein
1. Ability to start the purifier remotely (without the user being present in the vehicle and the vehicle in OFF state). The usage of the purifier does not draw any energy from the battery of the vehicle when running while the vehicle is in OFF state. This gives the ability for the user to manually start the purifier remotely irrespective of the distance between the user and his vehicle.
2. The user has the unique ability to set up a schedule of when the purifier should automatically switch ON without the user's need to give the command manually.
3. The purifier has the unique ability to learn the most common travel schedule of the user over time and would pre-emptively switch ON to clean the vehicle before

the user boards the vehicle to travel as per the learned schedule. This feature will allow seamless functioning of the air purifier without any intervention of the user.
4. Overall battery backup is significantly increased.
5. Ability to forecast the least polluted route between the source and
destination.
7. Ability to show (on the device display) the average pollution of the region the vehicle is currently passing from.
8. Smart heat dissipation inside the device while also preserving space inside the air purifier by providing a single fan for cleaning air and for dissipating heat
Referral Numerals:

Reference Number Description
102 Air purifier
104 First network
106 Second network
110 Handheld device
150 Server
202 In-built power source
204 Transceiver
206 Activation unit
208 Air purifying unit
210 One or more sensors
220 Display section
300 Application
302 Start section
304 Stop section
306 Pollutant particles measure section
308 Schedule section

310
Fan speed section
312 Voice command section
314 Battery level section
316 Signal strength section
350 Route section
402 Calendar section
404 Timing section
700 Example
800 Example
900 Method
901-905 Method steps

CLAIM:
1. An air purifier for a vehicle, comprising:
an in-built power source;
a transceiver unit configured to receive one or more activation commands from a user over a first network or a second network;
an activation unit coupled to the transceiver unit and configured to activate one or more sensors in response to receiving one or more activation commands, wherein the one or more sensors are configured to detect one or more pollutant particles in the vehicle upon activation of the one or more sensors; and
an air purifying unit coupled to the activation unit and configured to remove the pollutant particles present in the vehicle based on detected one or more pollutant particles inside the vehicle.
2. The air purifier as claimed in claim 1, wherein the one or more pollutants particles are detected when the number of one or more pollutants are above a pre-defined threshold.
3. The air purifier as claimed in claim 1, wherein the air purifier switches from the first network to the second network when the signal strength from the first network is below a first pre-defined threshold.
4. The air purifier as claimed in claim 1, wherein the air purifier switches from the first network to second network when a charging status of the in-built power source is less than a second pre-defined threshold.
5. The air purifier as claimed in claim 1, wherein the air purifier switches from the first network to the second network when the signal strength of the first network is below a first pre-defined threshold and a charging status of the in-built power source is less than a second pre-defined threshold.

6. The air purifier as claimed in claim 1, wherein the first network comprises 2G, GPRS,
EDGE, 3G, 4G, LTE network, 5G, NBIOT network, CAT-M networks, Bluetooth, Wi-Fi
networks.
7. The air purifier as claimed in claim 1, wherein the second network comprises short
messaging services (SMS).
8. The air purifier as claimed in claim 1, further comprising:
searching for the first network and the second network;
exponentially delaying the searching of the first network and the second network when the first network and the second network are not available.
9. The air purifier as claimed in claim 1, wherein the one or more commands are received based on a pre-defined schedule set by a user.
10. The air purifier as claimed in claim 1, further comprising: analyzing one or more usage patterns of a user for the air purifier; learning the analysed one or more usage patterns of the user.
11. The air purifier as claimed in claim 1, wherein the in-built power source comprises one or more DC batteries.
12. The air purifier as claimed in claim 1, further comprising:
heat dissipation section configured to dissipate heat from the air purifier, wherein the heat dissipation section comprises:
a single fan to clean the air inside the vehicle and for dissipating heat inside
the vehicle
13. A method for operating an air purifier placed inside a vehicle, the method comprising:
receiving one or more activation commands from a user, wherein the one or more activation commands are received from a first network or a second network;

activating one or more sensors in response to the received one or more activation commands, wherein the one or more sensors are configured to detect one or more pollutant particles in the vehicle;
removing the one or more pollutant particles from the vehicle based on the detected one or more pollutant particles in the vehicle.