Fits perfectly, airtight but yet still comfortable.

Fits perfectly, airtight but yet still comfortable.  Read Less

The surprising thing was the oxygen readings were fantastic, routinely 98 - 99 - even the 100s at times by my oxymeter.

The surprising thing was the oxygen readings were fantastic, routinely 98 - 99 - even the 100s at times by my oxymeter.  Read Less

The oxygen is being trapped/concentrated by the mask and when you breath in, whether by nose or mouth, it is all going into you...  Read More

The oxygen is being trapped/concentrated by the mask and when you breath in, whether by nose or mouth, it is all going into your lungs with little leakage/loss compared to the nose cannula which delivers oxygen thru those two little holes into your nose.  Read Less

My mother needs breathing treatments multiple times a week and all she had was a strange mouth piece to inhale the vapor.

My mother needs breathing treatments multiple times a week and all she had was a strange mouth piece to inhale the vapor.  Read Less

I noticed that one can purchase elastic shoe strings for little money which should do nicely if/when i need to replace the exis...  Read More

I noticed that one can purchase elastic shoe strings for little money which should do nicely if/when i need to replace the existing elastic.  Read Less

Came fast, i’m a mouth breather so this is what i need.

Came fast, i’m a mouth breather so this is what i need.  Read Less