As of 2015, CPAP.com recommends the AirSense 10 CPAP machine, the Transcend Auto and PR 60 Series Auto. In 2014, EasyBreathe.com listed the AirSense 10 as the best smart CPAP, the Z1 Auto CPAP as the best portable machine, and the S9 AutoSet as the best overall CPAP machine.
CPAP machines are used to help people with sleep apnea breathe better during sleep, according to Mayo Clinic. Patients should try several different styles of masks and machines to find the one that is most comfortable and likely to be consistently worn. For example, some CPAP users prefer a mask that only covers the nostrils instead of the entire mouth and nose.