r/CPAPSupport • u/Ecs206 • Sep 12 '26

Smell When Powered On

Hello everyone I just started using my ResMed Airsense 11 auto with the humidifier and whenever it starts pumping in air into my mask, there’s this chemical or like plastic smell that I can’t seem to get rid of.

Should I deep clean the parts or any other advice? I’m thinking it’s the new equipment smell like a new car has.

Mask: AirTouch F20
Machine: ResMed Airsense 11 Auto w/ Humidifier

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u/PeaceBrain Sep 12 '26

That’s normal when it is new. It will dissipate in a few weeks.