White Powder In Filter

[dino40]

I have a Dreamstation. Recently I noticed air blowing was getting weaker. In tracing I discovered a lot of white powder on the filter. I replaced the filter and after about a week it did it again. This time I noticed the white powder was also in the chamber leading to the filter. I am not doing anything different than I have for years. I use distilled water. Frustrating. Is this problem familiar to anyone.  Mike Peterson

[Crimson Nape]

If it is on the filter, then it is in your environment. Where is your CPAP located, floor, drawer, . . . attic?

[dino40]

Thanks for quick response. It is located on nightstand in bedroom. Been there ever since I was put on CPAP, some 15 years. I had a room purifier installed just over a year which is cleaned and filter replaced quite often.

[Crimson Nape]

This time a year, it could be a pollen. Other possibilities are, talc used anywhere in your domicile and picked up by your HVAC, or baking soda to freshen the carpets, or even dust from spring-cleaning.

[Dog Slobber]

Have you started using an external room humidifier?

Many, (especially ultrasonic and impeller) produce a white dust by-product. The white dust the minerals with the water and is harmless, but you'll need to change your CPAP filters more often.

[dino40]

I will have to look into that more. For sure, no talc or baking soda. Thank you.

[dino40]

I think you nailed it Dog Slobber !! We started using an ultrasonic humidifier a couple months ago. Changing filters more often is not a problem. As long as it is harmless I can live with that. The chamber below the filter bothers me a little as I can get my finger down there only so far to clean it. Thank you for your reply. Very helpful. Mike

[SarcasticDave94]

If you're meaning the area around the filter, maybe try a Q-tip to wipe the white stuff off.

[dino40]

Thank you Dave. That should work. Mike

[SarcasticDave94]

Welcome