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Everyone knows that a coil with 0.05 inch of dirt, Biofilm, or other contamination buildup operates 32% less efficient. Or was that 42%? Or 5 microns? Or 23%. Oh well, why get hung up in the details. We have all seen the claims. They are posted on Internet sites, quoted in articles, and listed on […]

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A couple of years ago a friend compared me to Paul Revere only she said I rode through the world of indoor air quality crying, “Legislation is coming; legislation is coming”. I must plead guilty, as, for the past several years, I have been stating that, unless the industry establishes standards and methods that bring […]

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Dear IAQ Colleagues, Attached below is a letter recently signed by Marcia Mulkey, Director of the Office of Pesticide Programs, outlining concerns the Agency has regarding the use of antimicrobial products (most often sanitizers and disinfectants) in heating, ventilation, air conditioning and refrigeration systems (HVAC&R). This letter is the first step in a series of […]

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