AlfaTech HVAC System Strategies for Airborne Diseases

H V A C S Y S T E M S T R A T E G I E S F o r A i r b o r n e D i s e a s e s

AIR DISINFECTION – UVGI DISADVANTAGES

Human Exposure

• Occupational exposure guidelines for UVGI have been developed by CDC/NIOSH. In room applications are usually limited to 0.2 W/cm2. Exceeding

the permissible exposure time can cause short- and long-term damages.

• In-unit applications prevent human exposure and allow much higher irradiance.