公开(公告)号：US20220249729A1

公开(公告)日：2022-08-11

申请号：US17584786

申请日：2022-01-26

申请人： Timothy Hill ,  John Luk ,  Joel Gross ,  Ngoc-Thao Ly

发明人： Timothy Hill ,  John Luk ,  Joel Gross ,  Ngoc-Thao Ly

IPC分类号： A61L9/20

摘要： The present invention is directed to an improved combination LED light troffer and passive UVGI air chamber for providing both general lighting and disinfection of contaminated used air that is cleaned, treated, and purified before returning back to the HVAC system for recycling. The improvement including an internal and quiet UVGI air chamber that uses natural air convection from the HVAC system to take in air for sanitizing inside the UVGI air chamber for a brief amount of time, and then releasing it out to the air return of the HVAC system. The UVGI air chamber being operational only when the HVAC system is active and independent of the operation of the LED light troffer for general lighting. UVC light sources include germicidal fluorescent lamps, cold cathode lamps, excimer type lamps, and UVC type LED emitters in different UVC wavelengths.