The Environmental Protection Agency (EPA) has issued a supplemental guide to ensure that users, applicators, and registrants only use products that are labeled for use in heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems. This guide was created in response to a letter from Marcia Mulkey, former director of the EPA's Office of Pesticide Programs, which identified several Agency concerns regarding the use of disinfectants and other types of antimicrobial products to treat the surfaces of HVAC&R systems. The EPA is worried about potential risks to applicators and building occupants that may be associated with the use of antimicrobial products in such environments. When it comes to cleaning HVAC systems, there are two main approaches: cleaning and disinfection. Cleaning simply involves expelling accumulated dust and debris, such as pollen, from the air ducts.
This visually “cleans” the air duct system. Disinfection, on the other hand, uses a disinfectant specifically approved by the EPA. This eliminates 99.9 percent of harmful agents, such as bacteria, mold, and other germs, that live in air ducts. With disinfection, you'll be able to breathe better and have fewer germs in your home for up to six months.
Sporicidinis an EPA-approved disinfectant that is labeled for use in HVAC systems.
It is important to use a chemical solution that is specifically labeled for use in HVAC units as other chemical solutions can be hazardous.