Over priced - it appears to be a $0.25 piece of hard plastic. But the hose and headpiece that came with my ResMed AirMini travel CPAP made it so incredibly loud, I couldn’t sleep. This universal adapter lets me bypass the heated hose connection, and use the hose and headpiece from my ResMed 10 on my AirMini travel CPAP. It’s significantly quieter overall without the noise of the air whistling through the HumidX “waterless humidifier.” It’s still much louder than my ResMed 10, but much improved with this adapter.
I own an AirSense Mini and love it. My biggest gripe is the proprietary tubing. It reminds me of Apple and their lightning charging cables. Well, this workaround takes care of that problem, at least on the AirSense Mini. Snaps into place and the seal is great. Any tubing now works as long as it uses the 22mm form factor. I bought a second one as a backup, just in case. But so far there's been no need. Seems well manufactured and has withstood several connections and disconnections.