5 ms·
It needs extensive calibration, if you don't want it to either be ineffective, or wake up in the morning, with your stomach pumped full of air, like a balloon.
by vkou 2y ago
It needs extensive calibration, if you don't want it to either be ineffective, or wake up in the morning, with your stomach pumped full of air, like a balloon.
The latter is quite painful.
- Natsu 2y agoNot to mention finding out which masks suit you the best.