Hi Guys, So, I've been using the resmed machine with a full face..it was the one where my nostrils stayed out??! Anyway, I switched to the resmed f20 full face with magnetic clips (for her) and voila! No noise!! Literally, it makes zero noise! However, I do have some leakage....it always seem to fall between 15 and 19..I guess that's not too shaby...women, I really recommend the resumed f20...it really kicks ass!