Conversation on Facebook last week got interesting after one person asked for data on if a duct return is banged, will it disrupt particulate? I couldn't imagine it any other way but now there's some evidence to rely on. PM2.5 is particulate matter less than 2.5 micrometers (microns) and less than 100 times smaller than a human hair and causes many health concerns. I've ran other experiments with this device like spraying Windex at return grills and seeing the VOCs in parts per billion also rise. I'm interested in buying a "green" cleaner to see if there's a difference. #teachme

Posted by HVAC Know It All at 2021-02-28 14:20:29 UTC