SeQual eQuinox AC Power Cord Humidifier - Yes superior to the timing-based system

superior to the timing-based system of other models

000 ft FAA Approved Yes - FAA approved label visible on device Oxygen Concentration Purity 87%-96% at seal level at all settings Warranty 3 Years or 15000 hours (which ever comes first)

comfortable straps that won't irritate your skin during sleep

you're good to go another few hours

The duration of the standard lithium ion battery is 4

SeQual eQuinox AC Power Cord Humidifier - Yes superior to the timing-based systemThe SeQual eQuinox AC Power Cord connects to the eQuinox AC power supply and will operate and charge the eQuinox unit from any standard AC wall outlet. Just plug the power cord into the AC power supply, and connect the cord into the recessed power port on the side of the Equinox to charge up the battery inside of it, and to run the concentrator at the same time. You don't need to run the Equinox while the battery is charging, since the battery will