Mask Inhaler Set serene5 acc and the oxygen concentration can

and the oxygen concentration can reach up to 90% at the 1L setting

the device automatically activates the "Ultra Pulse Mode"

The transparent device allows for visible lung capacity growth

this battery will keep your concentrator running so that you can stay active longer

ensuring uninterrupted oxygen therapy when you are out

Mask Inhaler Set serene5 acc and the oxygen concentration canPlease note: the accessories may be shipped separately from the oxygen concentrator, which will take 10 15 working days to deliver. The oxygen concentrators are usually shipped in 2 3 days after placing the order, and in about 3 5 working days, they will arrive. Before purchasing: Return & Refund services are not available for this accessory product. Please read the description carefully or contact our Customers Service Team for more information. This