Month: May 2017

indoor air quality

Indoor Air Quality and Duct Cleaning – to do or not to do?

There are several schools of thought on indoor air quality, but we’re of the school that relies on official unbiased guidelines for determining when ducts should be cleaned. The National Air Duct Cleaners Association (NADCA) has a guideline, NADCA ACR 2013 Assessment, Cleaning and Restoration of HVAC Systems. This guideline is available for free from the NADCA […]