It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by DAVID64
Did they do anything to the duct work of your home? You said the heating was worked on. They use fiberglass insulation on the inside of the ducts that carry the heated/cooled air through out the house. You could be seeing loose particles.edit on 25-3-2012 by DAVID64 because: (no reason given)
Originally posted by wirefly
I would tape a regular furnace air filter or some other type of filter media over your air conditioner register in your room to collect it. Once you have a decent sample, backwash the filter into a plastic tub or pail and dry it out and then collect it into a baggie for testing, or, bring to someone with a microscope.