I've only used the Resmed S8 Elite at a pressure of 12 and no ramp and find there is a slight noise level, but I've come to view it as "white noise", so it doesn't bother me. I can still hear the rain outside or if my dog whines to go out, for example. The whistling sound you describe sounds perhaps...

Basically - it's ditch the purse then I think that's the way to go. I'm gonna try it with one bag, as I don't carry a lap top. We'll see.....

dnelms - here's a thought... I'm going to have to fly in a couple of weeks too, and I plan not to carry a purse, but "purse items" into my CPAP bag, and make that do dual duty during the flight. I'll pack an empty purse into my luggage to use when I arrive at my destination. I'm also thinking of det...

My only experience has been with Resmed, but I can tell you that I too am a mouth breather and was convinced I'd never be able to use anything that required me to breath through my nose. But my DME therapist suggested I try the Swift Nasal Pillow, and it works for me. The pressure keeps my nasal pas...