DESC:CROSS REFERENCE TO RELATED APPLICATION
This application is based on and derives the benefit of Indian Provisional Application 202121000995 filed on 08/01/2021, the contents of which are incorporated herein by reference

TECHNICAL FIELD
[001] The embodiments herein generally relate to air purification and disinfection systems and more particularly, to a system and a method for purifying air and diffusing a disinfectant in a room/habitable space.

BACKGROUND
[002] Air contamination by pollen, mold, smoke, dust, micro-organisms or any other of a number of known irritants is a common and long-standing problem. Contact with these contaminants is almost inevitable and often makes breathing uncomfortable for individuals. Moreover, such contaminants may present long-term health risks, particularly for those individuals suffering from allergies, asthma, emphysema and other respiratory related illnesses. A wide variety of air purifiers are currently available in the market for removing contaminants from ambient air. These systems typically include a fan for circulating air and a mechanical filter disposed in an air path so as to filter or otherwise purify air flowing therethrough. Since many living micro-organisms are smaller than 0.3 microns, they readily pass through such conventional mechanical filters. Other disinfections methods involve ultraviolet sterilization and disinfection which uses ultraviolet rays with proper wavelength to destroy the molecular structure of deoxyribonucleic acid or ribonucleic acid in microbial organism cells, so that growth cell death and regeneration cell death are caused, and the sterilization and disinfection effect is achieved. Usually, the ultraviolet sterilizer mostly adopts a single mode of fixed manual opening operation, where operators need to manually open without any protective measures under general conditions, the operators are easily harmed by the ultraviolet rays, and the eyes of the operators are greatly damaged. Further, the ultraviolet sterilizer mostly adopts a mode of fixed position single direction irradiation for sterilization and disinfection and has the defect of incomplete irradiation surface and cannot achieve the comprehensive sterilization and disinfection function and has a plurality of defects for indoor sterilization and disinfection. The most common UV emitters are mercury-vapor lamps and xenon lamps. Such lamps emit a very wide range of UV wavelengths and the vast majority of the emitted wavelengths (an associated power) have no effect on killing microorganisms. Such emitted wavelengths waste energy and can be harmful to humans over long exposure periods. Such lamps also need a high voltage power supply, which can create safety issues.
[003] Some disinfections methods utilize an ozone generator in the hospital ward for the destruction of airborne microbes. Ozone is not an effective biocide for airborne microbes except at extremely high and unsafe levels, for example, more than 3,000 parts per billion (ppb). As a result, ozone generators cannot destroy airborne microbes or pathogenic microorganisms effectively to achieve any benefits to occupant’s health. If these devices accidentally generate excessive levels of ozone, it will be detrimental to occupant’s health. For example, when the ozone is introduced in a relatively closed environment may reach a certain concentration which in turn damages the human body.
[004] Therefore, there exists a need for a system and a method for purifying air and diffusing a disinfectant in a room/habitable space, which obviates the aforementioned drawbacks.

OBJECTS
[005] The principal object of embodiments herein is to provide a system for purifying air and diffusing a disinfectant in a room/habitable space.
[006] Another object of embodiments herein is to provide a method for purifying air and diffusing a disinfectant in a room/habitable space.
[007] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space, which is ergonomic and reliable.
[008] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space which is configured to be controlled using a wireless remote controller.
[009] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space which includes air purification module, air disinfection module and disinfection substance diffusion unit to prevent the spread of infectious diseases.
[0010] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space which uses ultrasonic waves to operate the disinfection substance diffusion unit and thereby achieve disinfection of the air and surfaces of the room/habitable space.
[0011] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space which includes air quality indicator and filter replacement indicator to indicate air quality and filter replacement, respectively.
[0012] Another object of embodiments herein is to provide the system for purifying air and diffusing the disinfectant in the room/habitable space which includes a speed controller for controlling a speed of a drive motor of the system.
[0013] These and other objects of embodiments herein will be better appreciated and understood when considered in conjunction with following description and accompanying drawings. It should be understood, however, that the following descriptions, while indicating embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS
[0014] The embodiments are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[0015] Fig. 1 depicts an exploded view of a system for purifying air and diffusing the disinfectant in the room/habitable space, according to embodiments as disclosed herein;
[0016] Fig. 2 depicts an exploded view of a block diagram of the system for purifying air and diffusing the disinfectant in the room/habitable space, according to embodiments as disclosed herein; and
[0017] Fig. 3 is a flowchart depicting a method for purifying air and diffusing a disinfectant in a room/habitable space, according to embodiments as disclosed herein.

DETAILED DESCRIPTION
[0018] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0019] The embodiments herein achieve a system for purifying air and diffusing a disinfectant in a room/habitable space. Further, the embodiments herein achieve a method for purifying air and diffusing a disinfectant in a room/habitable space. Furthermore, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space, which is ergonomic and reliable. Additionally, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space which is configured to be controlled using a wireless remote controller. Moreover, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space which includes air purification module, air disinfection module and disinfection substance diffusion unit to prevent the spread of infectious diseases. Also, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space which uses ultrasonic waves to operate the disinfection substance diffusion unit and thereby achieve disinfection of the air and surfaces of the room/habitable space. Further, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space which includes air quality indicator and filter replacement indicator to indicate air quality and filter replacement, respectively. Furthermore, the embodiments herein achieve the system for purifying air and diffusing the disinfectant in the room/habitable space which includes a speed controller for controlling a speed of a drive motor of the system. Referring now to the drawings particularly to Figs 1 through 3, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0020] Fig. 1 depicts an exploded view of a system for purifying air and diffusing the disinfectant in the room/habitable space, according to embodiments as disclosed herein. In an embodiment, the system(100) includes a housing (not shown), an air purification module (200), an air disinfection module (300), at least one first filter (102), at least one second filter (104), at least one third filter (106) and at least one fourth filter (108), an ultraviolet (UV) C light lamp (110), a bipolar ionizer (112), a disinfection substance diffusion unit (114), a controller (116), a brushless direct current (BLDC) motor (hereinafter called as BLDC motor) (118) (as shown in Fig. 2), an air quality indicator (120) (as shown in Fig. 2), a dust sensor (122) (as shown in Fig. 2), a humidifier (124) (as shown in Fig. 2), remote controller (126) (as shown in Fig. 2), a filter replacement indicator (128) (as shown in Fig. 2) and speed control unit (130) (as shown in Fig. 2). For the purpose of this description and ease of understanding, the system (100) is explained herein with below reference to purifying air and diffusing the disinfectant in the room/habitable space. However, it is also within the scope of the invention to practice and/or use the system in industries, research centers, private and public installations, commercial places, non-commercial places or any other places, without otherwise deterring the intended function of the system as can be deduced from the description and corresponding drawings.
[0021] The system (100) for purifying air and diffusing a disinfectant includes the housing (not shown) which is configured to enclose all the components of the system (100). The housing includes a top wall, a bottom wall, a front wall, a rear wall, a left wall, and right wall. The front wall and the rear wall defines an inlet and an outlet, respectively. The air inlet and the air outlet form a complete air channel in the housing. In an embodiment, the housing is made up of ABS material. In an embodiment, the housing includes a dimension of H x W x d= 53x45x23. However, it is also within the scope of the invention to use any dimensions for housing, without otherwise deterring the intended function of the system as can be deduced from the description and corresponding drawings.
[0022] The system (100) for purifying air and diffusing a disinfectant includes the air purification module (200) arranged in the air channel. The air purification module (200) includes a plurality of filters, namely, at least one first filter (102), at least one second filter (104), at least one third filter (106) and at least one fourth filter (108). The first filter (102), the second filter (104), the third filter (106) and the fourth filter (108) are arranged in a row to achieve air purification. In an embodiment, the first filter (102) is at least a pre-filter. The first filter (102) is a washable filter. In an embodiment, the second filter (104) is at least a high efficiency particulate air (HEPA) filter having a grade 13. In an embodiment, the third filter (106) is at least an activated carbon filter. In an embodiment, the fourth filter (108) is at least a titanium dioxide (TiO2) filter.
[0023] The system (100) for purifying air and diffusing a disinfectant includes the air disinfection module (300) is disposed within the housing to achieve sterilization and disinfection of the air. The air disinfection module (300) includes a Ultraviolet light source (110) and a bipolar ionizer (112) arranged successive to said Ultraviolet light source (110). In an embodiment, the Ultraviolet light source (110) is at least a UVC lamp. Further, in an embodiment, the bipolar ionizer (112) is at least a Bipolar Plasma spray (or shower) unit.
[0024] The system (100) for purifying air and diffusing a disinfectant includes the disinfection substance diffusion unit (114) is adapted to contain at least one said disinfection substance. The controller (116) is configured to diffuse the disinfection substance into air using ultrasonic waves and thereby achieve disinfection of the air and surfaces of the room/habitable space. In an embodiment, the noise level of the ultrasonic waves is <60 dB.
[0025] The system (100) for purifying air and diffusing a disinfectant includes the drive motor (118) for transferring air through the air channel in the housing. In an embodiment, the motor (118) is at least a brushless DC motor (BLDC). Further, the system (100) purifying air and diffusing a disinfectant includes the dust sensor (122) positioned at a predetermined location in the housing. The dust sensor (122) is configured to detect concentration of dust particles in the air. Furthermore, the system (100) purifying air and diffusing a disinfectant includes the air quality indicator (120) which is adapted to indicate an air quality emerging from the system (100) as shown in Fig. 2. For example, the blue light, light purple light, dark purple light and red light indicates very good air quality, good air quality, moderate air quality and poor air quality respectively.
[0026] The system (100) for purifying air and diffusing a disinfectant further includes humidifier (124) to realize a mist of the disinfection substance to achieve the disinfection of the air and the surfaces of said room/habitable space. In an embodiment, the capacity of the humidifier is 3.2 liters which includes 10PPM concentration of disinfectant. The system (100) for purifying air and diffusing a disinfectant further includes wireless remote controller (126) to control functioning of said system (100). The wireless remote controller (126) includes a transmitter for communication between the system and the remote controller (126). The system (100) for purifying air and diffusing a disinfectant further includes filter replacement indicator (128) to indicate a replacement of corresponding filter in said plurality of filters. The system (100) for purifying air and diffusing a disinfectant further includes the speed control unit (130) to control a speed of the drive motor, thereby controlling the of air flow through the air channel in the housing. In an embodiment, the speed control unit is configured to achieve up to 10 different speeds in air flow.
[0027] One refill of the disinfectant may be operated from 10 to 15 hours continuously. Disinfecting the room may require very short period of time based on specific location and suspected microbial load.
[0028] Fig. 3 is a flowchart depicting a method for purifying air and diffusing a disinfectant in a room/habitable space, according to embodiments as disclosed herein. The method (500) for purifying air and diffusing a disinfectant in a room/habitable space includes passing air through an air purification module (200) arranged in a air channel of a housing (at step 502). Further, the method (500) includes passing a purified air from said air purification module (200) through an air disinfection module (300) arranged subsequent to said air purification module (200) in said housing, for achieving purification and disinfection of said air (at step 504). Furthermore, the method (500) includes activating a disinfection substance diffusion unit (114) arranged subsequent to said air disinfection module (300) in said housing, by a controller (116), to diffuse at least one disinfection substance into air in a predetermined quantity for a predetermined time period, for achieving disinfection of said air and said surfaces of said room/habitable space.
[0029] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modifications within the spirit and scope of the embodiments as described herein.
,CLAIMS:We claim:
1. A system (100) for purifying air and diffusing a disinfectant in a room/habitable space, said system having a housing with an air inlet and an air outlet arranged on opposite peripheral sides of said housing, and the air inlet and the air outlet form a complete air channel in said housing, said system comprising:
an air purification module (200) arranged in said air channel;
an air disinfection module (300) arranged subsequent to said air purification module (200) in said air channel;
a disinfection substance diffusion unit (114) arranged subsequent to said air disinfection module (300) in said housing; and
a controller (116) in communication with said air disinfection module (300) and said disinfection substance diffusion unit (114),
wherein,
said controller (116) is configured to activate said disinfection substance diffusion unit (114) to diffuse at least one disinfection substance into air in a predetermined quantity for a predetermined time period.

2. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said air purification module (200) includes a plurality of filters, said plurality of filters include:
at least one first filter (102), at least one second filter (104), at least one third filter (106) and at least one fourth filter (108) arranged in a row to achieve air purification,
wherein,
said first filter (102) is at least a pre-filter, said first filter (102) is washable;
said second filter (104) is at least a high efficiency particulate air (HEPA) filter;
said third filter (106) is at least an activated carbon filter; and
said fourth filter (108) is at least a titanium dioxide (TiO2) filter.

3. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said air disinfection module (300) is disposed within said housing to achieve sterilization and disinfection of said air, said air disinfection module (300) includes a Ultraviolet light source (110) and a bipolar ionizer (112) arranged successive to said Ultraviolet light source (110).

4. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said disinfection substance diffusion unit (114) is adapted to contain at least one said disinfection substance, said controller (116) is configured to diffuse said disinfection substance into said air using ultrasonic waves and achieve disinfection of said air and surfaces of said room/habitable space.

5. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes at least one drive motor (118) for transferring air through said air channel in said housing, said motor (118) is at least a brushless DC motor (BLDC).

6. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes a dust sensor (122) positioned at a predetermined location in said housing, said dust sensor (122) is configured to detect concentration of dust particles in said air.

7. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes an air quality indicator (120) which is adapted to indicate an air quality emerging from said system (100).

8. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes a humidifier (124) to realize a mist of said disinfection substance to achieve said disinfection of said air and said surfaces of said room/habitable space.

9. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) is paired with a wireless remote controller (126) to control functioning of said system (100).

10. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes a filter replacement indicator (128) to indicate a replacement of corresponding filter in said plurality of filters.

11. The system (100) for purifying air and diffusing a disinfectant as claimed in claim 1, wherein said system (100) includes a speed control unit (130) to control a speed of said drive motor, thereby controlling speed of air flow through said air channel in the housing.

12. A method for purifying air and diffusing a disinfectant in a room/habitable space, comprising:
passing air through an air purification module (200) arranged in a air channel of a housing;
passing a purified air from said air purification module (200) through an air disinfection module (300) arranged subsequent to said air purification module (200) in said housing, for achieving purification and disinfection of said air; and
activating a disinfection substance diffusion unit (114) arranged subsequent to said air disinfection module (300) in said housing, by a controller (116), to diffuse at least one disinfection substance into air in a predetermined quantity for a predetermined time period, for achieving disinfection of said air and said surfaces of said room/habitable space.