I just went the Orwell 266 lithium ion route because it was slightly cheaper, lighter weight and I can charge it off my motorcycle aux plug while riding. I bought the Resmed 12v converter for my S8 Autoset II and was told I can turn my humidifier off and use in a passover mode. I also have an Aeiome...

Pes423- I've been using the UMFF for about two years now. I have a close trimmed goatee and titrated at a pressure of 16. I too have occaisional issues with leaks around the nose into the eyes with the UM. At my most recent mask trial I gave the Quattro a shot as it was touted as a newer improved UM...