DIRTY DUCKS? An Air DUCT Cleaning & HVAC Hygiene Primer
By Bob Krell, CIEC, CMRS, LEED-AP, NYS Mold Assessor — This article is about DUCT cleaning, not duck cleaning! OK, I just couldn’t resist the graphic puns, but after over 27 years of being involved in the HVAC hygiene industry, I think it’s fitting. So, just what IS duct cleaning, and why should you be