As for the the reply about candles, yes my wife burns a candle in the living room every now and then. Nothing remotely close to the bedrooms which are in the back of the house. Also my machine filter is clean and is changed regularly. I’ve never seen this black on the machine filters.

Is it possible that mildew/mold to form so quickly? I keep my equipment clean. My masks are washed daily and I equip a new/clean one every night. After 7 hrs of use it occurred again. I’m trying to link photos to see the issue but having issue with uploading to site. Thanks for the input.

Hi, I’m looking for some help/ answer to a concern. I have a Resmed airsense10 machine and use a F&P Eson 2 nasal mask. My mask diffuser filter has black dots that match the small “holes” in the plastic clip that holds it in place. I have removed the original “factory” filter because of this reason ...