Device is much too difficult to rapidly and properly fit over nose and mouth. It works perhaps one out of ten times. During a difficult state, perhaps even accompanied with panic, the device is Unsatisfactory.
Took over 1 1/2 months to get this and then ended up being the wrong size that I ordered. Not going to deal with this place ever again!
I feel very secure having the savelix. I am 93 and live alone
I received the product but luckily have needed to use it yet