Claims:I Claim:
1. An air purification apparatus for filtering macro dust particles as well as microorganism in an ambient air, the apparatus comprises:
an inlet section, wherein the inlet section creates an air suction inside an apparatus body and acts as a minor filter section;
an ultraviolet (UV) section, wherein the ultraviolet section is placed behind inlet section and is connected to a drive controller and a power supply unit; and
a macro-filter section, wherein the macro-filter section is attached behind the ultraviolet section and forms a major filter section;
wherein, the inlet section and the outlet section are connected with at least one fan to create suction of polluted air and exhaust of clean air respectively.
2. The apparatus as claimed in claim 1, wherein the inlet section comprises an air inlet mesh, a polyurethane based primary filter attached behind the fan and an air diverting split partition.
3. The apparatus as claimed in claim 1, wherein the UV section comprises an UV LED array, a protective metal cover and a light reflective chamber housing the UV LED array and the protective metal cover, wherein the light reflective chamber allows reflection of the UV light to enhance a treatment of microbe in the light reflective chamber.
4. The apparatus as claimed in claim 3, wherein the air enters into the UV section in a split manner resulting in even distribution of air and the air remains in the UV section for a period of 10-50 seconds, wherein the prolonged exposure of the air in UV light leads to complete treatment of microbes in the air giving a sanitization effect.
5. The apparatus as claimed in claim 4, wherein an intensity and period of exposure of the UV light is control through the drive controller, wherein the drive controller drives power from the power supply to the UV LED array in a controlled manner.
6. The apparatus as claimed in claim 1, wherein the macro-filter section comprises an air diverting split partition, the suction fan, an activated carbon filter, a HEPA (High Efficiency Particulate Air) filter and an air outlet mesh.
7. The apparatus as claimed in claim 6, wherein the suction fan creates an exhaust of the air from the UV section through the air diverting split partition, wherein the activated carbon filter and the HEPA filter provides major filtration of macro air pollutants.
, Description:A) TECHNICAL FIELD
[001] The present invention generally relates to an air purification apparatus and particularly relates to an air purification apparatus with improved macro as well as micro substance filtration.

B) BACKGROUND OF INVENTION
[002] There is increasing interest in supplying clean, pollution-free air to interior air spaces, such as onboard commercial aircraft. To provide cleansed air to an interior air space, such as an aircraft cabin, it may be desirable to remove pollutants such as dust or other particulates, as well as volatile- or semi-volatile organic compounds (VOCs, SVOCs) from an air stream to be fed to the interior air space. It may further be desirable to remove, or inactivate (kill), microorganisms (e.g., various bacteria), and viruses, which may be human pathogens. In the case of a vehicle, such as an aircraft, such objectives must be accomplished by an air quality system within the constraints of weight and size of the system, as well as pressure drop across the system.
[003] Conventional commercial aircraft feed air (e.g., bleed air from a gas turbine engine) to an environmental control system (ECS), and thence via one or more high efficiency particulate (HEPA) filters to an interior air space, e.g., cabin or flight deck of the aircraft. The ECS conditions the air it receives in terms of pressure, temperature, and humidity, but does not remove particulates or pollutants such as VOCs. Although HEPA filters of prior art air circulatory systems remove some particulates, they do not remove gaseous or molecular pollutants such as VOCs or SVOCs.
[004] However, the prior art filtration technique enables them to filter only macro dust particles while micro structured substances such as microbes are not effectively filtered in the prior arts.
[005] In the view of foregoing, there is a need for an air purification apparatus to provide an efficient filtration of macro particles as well as microorganisms.
[006] The above-mentioned shortcomings, disadvantages and problems are addressed herein, as detailed below.

C) OBJECT OF INVENTION
[007] The primary objective of the present invention is to provide an air purification apparatus to provide an efficient filtration of macro particles as well as microorganisms.
[008] Another objective of the present invention is to provide a unit for subduing or killing the microbes in addition to suppression of macro and micro dust particles.
[009] These and other objects and advantages of the embodiments herein will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.

D) SUMMARY OF INVENTION
[0010] The various embodiments of the present invention provide an air purification apparatus for filtering macro dust particles as well as microorganism in an ambient air. The apparatus comprises an inlet section, an ultraviolet (UV) section, and a macro-filter section. The inlet section creates an air suction inside an apparatus body and acts as a minor filter section. The ultraviolet section is placed behind inlet section and is connected to a drive controller and a power supply unit. The macro-filter section is attached behind the ultraviolet section and forms a major filter section. The inlet section and the outlet section are connected with at least one fan to create suction of polluted air and exhaust of clean air respectively.
[0011] According to one embodiment of the present invention, the inlet section comprises an air inlet mesh, a polyurethane based primary filter attached behind the fan and an air diverting split partition.
[0012] According to one embodiment of the present invention, the UV section comprises an UV LED array, a protective metal cover and a light reflective chamber housing the UV LED array and the protective metal cover. The light reflective chamber allows reflection of the UV light to enhance a treatment of microbe in the light reflective chamber.
[0013] According to one embodiment of the present invention, the air enters into the UV section in a split manner resulting in even distribution of air and the air remains in the UV section for a period of 10-50 seconds. The prolonged exposure of the air in UV light leads to complete treatment of microbes in the air giving a sanitization effect.
[0014] According to one embodiment of the present invention, an intensity and period of exposure of the UV light is control through the drive controller. The drive controller drives power from the power supply to the UV LED array in a controlled manner.
[0015] According to one embodiment of the present invention, the macro-filter section comprises an air diverting split partition, the suction fan, an activated carbon filter, a HEPA (High Efficiency Particulate Air) filter and an air outlet mesh.
[0016] According to one embodiment of the present invention, the suction fan creates an exhaust of the air from the UV section through the air diverting split partition. The activated carbon filter and the HEPA filter provides major filtration of macro air pollutants.
[0017] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred 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.

E) BRIEF DESCRIPTION OF DRAWINGS
[0018] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which:
[0019] FIG. 1 illustrates an air purification apparatus for filtering macro and micro substance, according to one embodiment of the present invention.

F) DETAILED DESCRIPTION OF DRAWINGS
[0020] In the following detailed description, a reference is made to the accompanying drawings that form a part hereof, and in which the specific embodiments that may be practiced is shown by way of illustration. The embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that the logical, mechanical and other changes may be made without departing from the scope of the embodiments. The following detailed description is therefore not to be taken in a limiting sense.
[0021] FIG. 1 illustrates an air purification apparatus for filtering macro and micro substance, according to one embodiment of the present invention. With respect to FIG. 1, the apparatus comprises an inlet section 101, an ultraviolet (UV) section 102, and a macro-filter section 103. The inlet section creates an air suction inside an apparatus body and acts as a minor filter section. The inlet section 101 comprises an air inlet mesh (1), a polyurethane based primary filter (2) attached behind the fan (optional in nature) and an air diverting split partition (3). The ultraviolet section 102 is placed behind the inlet section 101 and is connected to a drive controller (4) and a power supply unit. The UV section 102 comprises an UV LED array (5), a protective metal cover (6) and a light reflective chamber (7) housing the UV LED array (5) and the protective metal cover (6). The macro-filter section 103 is attached behind the ultraviolet section 102 and forms a major filter section. The macro-filter section 103 comprises an air diverting split partition (8), the suction fan (9) for air exhaust, an activated carbon filter (10), a HEPA (High Efficiency Particulate Air) filter (11) and an air outlet mesh (12).
[0022] According to an exemplary embodiment, the suction fan (9) is powered by the power supply and creates a suction channel into the apparatus. The entering faces the inlet mesh (1) which reduces the air speed and lead the ambient air to the polyurethane foam based primary filter (2) which allows filtering of particle size less 10 microns. The filtered air is then split distributed by the air diverting split partition (3) to create even distribution of air inside the UV section. The air inside the UV is then treated with a beam of UV light for a minimum period of 10 seconds which kills the microbes present in the air. The suction fan (9) may or may not be stopped during presence of the air inside the UV section to allow the air larger exposure to UV rays. The suction fan (9) then further draws the air to the activated carbon filter (10) through the air diverting split partition (11) that allows chemical absorption from the air and removes hazardous chemicals. The air is then filtered through the HEPA filter (12) to trap harmful particles such as pollen, pet dander, dust mites, and tobacco smoke. The filtered air is then forced out through the suction fan (9).

G) ADVANTAGES OF INVENTION
[0023] The present apparatus kills the airborne bacteria and viruses using controlled treatment of UV-C, unlike the trapping of microbes in normal filters and also filter macro, chemical and other gaseous particulates. The present apparatus is a portable system which can be used inside home, offices, or inside an automobile. The apparatus uses 12VDC for operation, hence inside home or offices, an AC/DC adapter is used, while in automobile, 12V DC adapter is used for operation.
[0024] 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 preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the claims.