Versatitle Bag For Portable Oxygen Concentrator NT-02 DDT-Series its seamless delivery matches your

its seamless delivery matches your breathing

Noise: ≤45Db(A)

Enjoy the freedom to move with constant oxygen support

Set auto shutdown times (10 to 2400 minutes) with ease

It also has 5 LED indicator lights to keep you informed of the remaining battery power

Versatitle Bag For Portable Oxygen Concentrator NT-02 DDT-Series its seamless delivery matches yourThese backpacks matches NT 02. Please note: the accessories will be shipped separately from the oxygen concentrator, and it will take 7 10 working days to deliver. The oxygen concentrators are usually shipped in 1 2 days after placing the order, and about 3 5 working days, it will arrive.