Not mistaken. The three charcoal gray foam that is internal to the machine may be for sound deadening but the air from the external filter passes through it to get to the water chamber. While a relative was in the hospital I had to stay at her house. She had 8 indoor cats that didn't use the litter ...

Looking to replace the foam inside my Resmed Airsense 11 Cpap machine. I have been traveling and have picked up smells from places that I have stayed. I have completely taken apart the machine on three occasions, wiped down all inside parts and sanitized the inside charcoal gray filters. At some poi...