For years now I have been very much concerned with how we heat and cool most of our homes. Central units with ductwork, filters and the unit itself to make it all work. Reality is there are so many different heating and air conditioning systems and units that have been used through the years that could be the cause of illnesses and infections .

Things can happen regarding central systems. Years ago I came down with Legionella and Mycoplasma Pneumonias with both at the same time. I finally figured out the possible reasons …. a dirty central heating system filter caused by a contractors negligence and then a water based heating system where I worked …a long story but the important thing is that I obviously survived.

Glad to have read the post that coffcoff posted. I will be calling my reliable AC/HAVC system service person and discussing what coffcoff posted to know what we can do and what company is the most reliable to use to clean the many feet of the central system ductwork. I have put off having the ductwork cleaned for fear the tech’s would accidently undo a joint connection and not inform me…all ductwork is in the attic. I’ll just have to have my AC/HAVC service person come back afterwards and have him check all.

Also, for me, and as I understand it is somewhat common, I found out I was sleeping with my mouth open after a while of falling off to sleep. I would wake up with dry mouth. I still find myself doing that via dry mouth in the mornings but don’t know how to control it or correct it. I believe, however I may be wrong, sleeping with one’s mouth open would dry you out all the way down to the air ways and could possibly cause bacteria from the heating system into one’s own system. Possibly??? I have wondered about that for some time as ONE of the possible reasons of why my MAI. I hope to discuss this with my BE pulmonologist on my next visit.

All posts on this thread are great and sure brings up much to think about for all of us.
Barbara