Applying UV light in HVAC systems.
D000389:Air Conditioning; D001419:Bacteria / Q000254:growth & development* / Q000528:radiation effects; D018441:Biofilms / Q000254:growth & development* / Q000528:radiation effects*; D003428:Cross Infection / Q000517:prevention & control; D006761:Hospitals; D014466:Ultraviolet Rays; D014481:United States