Air sterilization and disinfection apparatus
View Patent ↗An apparatus ( 100 and/or 200 ) and corresponding method ( 500 ) for air sterilization and disinfection can include an electronics and control module ( 110 and/or 210 ), a means for drawing air from the surrounding environment into the apparatus ( 120 and/or 220 ), an air management chamber ( 130 and/or 230 ), and a housing ( 170 and/or 270 ). The means for drawing air from the surrounding environment into the apparatus ( 120 and/or 220 ) mobilizes latent pathogens in the environment and draws them into the apparatus ( 100 and/or 200 ) for sterilization and disinfection. The air management chamber ( 130 and/or 230 ) provides for exposure of the airborne pathogens to UV radiation, via UV LEDs ( 150 and/or 250 ), with a dosage sufficient to penetrate the cell walls and destroy the pathogens. The electronics and control module ( 110 and/or 210 ) powers the apparatus ( 100 and/or 200 ) and interfaces with the electronic components. The housing ( 170 ) forms the outer shell of the apparatus ( 100 ).
1. An apparatus for sterilizing and disinfecting air, the apparatus comprising:
an inlet portion configured to receive an air flow;
an outlet portion configured to exit said air flow;
an air management chamber defining a substantially enclosed area between the inlet portion and the outlet portion, wherein the air management chamber comprises:
at least one reaction tube having a UV light reflective internal surface, an outer surface, a distribution of a plurality of apertures, and at least one area of sudden expansion within the distribution of the plurality of apertures; and
a plurality of UV light emitting diodes (LEDs) inserted into said plurality of apertures such that UV radiation is emitted into the reaction tube thereby exposing said air flow to said UV radiation.
2. The apparatus of claim 1 , wherein the area of sudden expansion modulates the air flow being irradiated by the UV LEDs by inducing turbulence to expose airborne pathogens to the UV radiation for a duration greater than one second.
3. The apparatus of claim 1 , further comprising a fan coupled to the inlet portion by an airtight sealing means, wherein the fan is capable of producing the air flow at a rate of between 180 and 300 cu Ft/min.
4. The apparatus of claim 1 , wherein the at least one reaction tube comprises a plurality of reaction tubes axially disposed within the air management chamber, wherein each reaction tube comprises:
an inlet coupled to the inlet portion of the airflow management chamber by an airtight sealing means in order to receive the airflow; and
an outlet coupled to the outlet portion of the airflow management chamber in order to expel the air back into the surrounding environment.
5. The apparatus of claim 1 , wherein the UV light reflective internal surface comprises polished aluminum.
6. The apparatus of claim 1 , further comprising an electronics and control module located outside of the airflow path.