I just had my ducts cleaned Feb. and as I was cleaning my hallway I took off the vent cover and too my suprise the dustlaying in there was beyond belief. I tried to put the shop vac hose down there and get it as much as I could. Tried to call the person that cleaned the ducts phone disconnected what a suprise. Had another person come out and check and give me a price for doing them. He had some type of camera that he could put in the duct and take a picture of what was in there and showed me. There is piles of dust. and large.
You see when I say I clean one day this is vacume and dusting everything. It a flim that is back with in a day. I'm tired of it. Yea I had a electric fliter to the furnance and I hated the thing had it taken out all I had was white particals flying around.
I'm about ready to put fliters in all my vents out going and retrun to see if that makes a differece. I have tried the bounty frabic softeners that you put in the dryer. You would not believe what dust I collect on them.