Great set-up with Mods.
It was advertised as used but looks like new. Seller added a replacement filter & Ck. valve( A $25. value). These have a controversial reputation. My CPAP Mfg. says usage going through the machine( ResMed A-10) voids the warranty. So I'm ordering a hose adapter that runs Ozone through the hose/mask alone daily. I'll clean the whole thing 2-X/Mo. 1st. time there was such a strong smell of ozone it was awful. I held the mask and turned my CPAP on letting it blow freely a few times. That did eliminate most of it. I first did a cleaning around 3- P.M. so it probably didn't have enough time to air out. Now it's set to default at 10:00 A.M /7 Min. & is not objectionable. It's out of warranty anyway but don't want to risk damaging it using it daily. IDK if it needs cleaned that frequently anyway.
Verified purchase: YesCondition: Pre-owned