Feature: Defend your breath

Offer continuous flow and pulse-dose delivery

Sensitively trigger(0.2cmH2O) makes pulse oxygen and breathing more synchronized.

Enjoy up to 4 hours of run time (8h with extend battery)

Lightweight and compact design make it the best choice for travel.

User-replaceable supported efficient molecular sieve providing stable&high purity

medical grade oxygen. (≥90% at all settings)