briliant, got this item for some one who has copd, when breathing is hard this gives 90% oxy at 1 lr min,,, it aids in breathing and works fine..
Verified purchase: Yes | Condition: New
works well is as quite as it can be, keeps my wife breathing and stops her having to go into hospital.Would recommend to anyone needing that extra amount of oxygen
Verified purchase: Yes | Condition: New
Helps me with a few conditions i have really easy to use
Verified purchase: Yes | Condition: New
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