It is a very nice machine. Though, the instruction pamplet should have been written better in english and more thoroughly.

The unit is working as expected.

Good quality low noise machine doing good for me.

Delighted with this concentrator had it checked out by nurse and she was impressed with it so happy with it I would recommend it to anyone

I suffer from COPD. This Oxygen Concentrator is a wonderful product. Helps me sleep through the night, and rest.

Works as advertised… nice handy, and very quiet unit. Would recommend!

It seems to work good ,sound is similar to other machines,very light,compact.

nice nasal cannula, well worth its price. very reasable

Nice

I need supplemental oxygen while sleeping.. I hated the thought of the big bulky equipment in my bedroom plus not easily to bring with me when carrying.. also health insurance wanted to much for a monthly rental and I needed it long term.. I found this little gem and I can carry with me when visiting family and I’m happy with it.. it’s not super noisy but you will need to get use to the sound if your use to sleeping quietly .. it has a continuous flow and you can change the percentage .. the light is bright on top when running so I covered with a small cloth .. I’m anxious to see how long it lasts I’m about 2 weeks of usage

This o2 concentrator is great. Works so well. A great machine, a wonderful price.

Nachine working very good

I've used the machine for 12 hours & it has operated flawlessly. Thank you 'Pure Oxygen'.

Great Value and meets my needs well. Affordable option when insurance won't get you one.

Bought this for myself and love it. It works great. Recommend it to anyone who needs oxygen.