US 11,850,337 B2
Air purifier having ultraviolet disinfection means
Ram Shalvi, Closter, NJ (US)
Filed by OLYMPIA LIGHTING, INC., Northvale, NJ (US)
Filed on Nov. 9, 2021, as Appl. No. 17/522,137.
Application 17/522,137 is a continuation of application No. 17/357,100, filed on Jun. 24, 2021, granted, now 11,167,057.
Claims priority of provisional application 63/045,069, filed on Jun. 27, 2020.
Prior Publication US 2022/0125986 A1, Apr. 28, 2022
Int. Cl. A61L 9/20 (2006.01); B01D 46/00 (2022.01); B01D 46/44 (2006.01); B01D 46/46 (2006.01)
CPC A61L 9/20 (2013.01) [B01D 46/0027 (2013.01); B01D 46/0028 (2013.01); B01D 46/0049 (2013.01); B01D 46/444 (2013.01); B01D 46/46 (2013.01); A61L 2209/111 (2013.01); A61L 2209/12 (2013.01); A61L 2209/14 (2013.01); B01D 2273/30 (2013.01); B01D 2279/65 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An air purification system, comprising:
a housing having an inlet for receiving air, an outlet for exhausting air, and one or more utility openings, wherein an air stream is passable from the inlet to the outlet;
an air convection means in the housing, which moves the air stream through the inlet from outside into a chamber in the housing, and further moves the air stream from the chamber to outside through the outlet;
a UV light subsystem within the chamber, comprising a plurality of UV light sources configured to emit UV radiation with adjustable wavelengths to irradiate the air stream passing through the chamber; and
an operation control subsystem adapted to the utility openings on the housing, by which a user controls or adjusts the air convection means and UV light subsystem,
wherein when the air purification system is in operation, the air stream moved by the air convection means enters the chamber through the inlet, is irradiated by the UV light sources of the UV light subsystem, and exits through the outlet, thereby being disinfected,
wherein the UV light subsystem comprises one or more PCBs for mounting the UV light sources in the chamber, wherein the PCBs comprise aluminum, so that heat accumulated in the chamber is efficiently dissipated, thereby lowering the operating temperature of the UV light sources and elongating the lifetime of the UV light sources,
wherein the air purification system further comprises a UVC sensor inside the chamber for detecting the intensity of UVC rays emitted by the UV light sources.