For what it's worth I ordered this online (not Amazon...as I feel like the Amazon ones are either used or left over personal products from people). The site also said it required a prescription. When I asked them about it they simply said "don't worry about it". I thought that was odd. I'm guessing ...

I wore this for the first time last night I have no negative things to say about. It's perfect for me. I have the standard frame and medium cushion. I switched to this from an F30 because the hose on the front was driving me nuts and it was hurting my chin. I had no issues at all with leaking. I was...