Portable Oxygen Enriched Machine MAF605A Size:US and it will take 5-7

and it will take 5-7 working days to deliver

1 X Instruction manual（Check the online manual here）

Extra Battery- Outdoor Use

This user-friendly feature ensures that your NT-02 operates efficiently and according to your preferences

and stops when the mask is removed

Portable Oxygen Enriched Machine MAF605A Size:US and it will take 5-7Click here to get the User Manual Features: Two modes of oxygen supply are provided: (1)Continuous oxygen mode:>1L min, Oxygen concentration 302%. (2)Pulse flow: 1 3L min adjustable, Oxygen concentration 302%. After power on, the device will work for 1 hour by default and will shut down automatically when the time is over, which is a protective setting to prevent the machine from overheating and Extend service life. We donate a 2200MA battery for free