I have sinus issues also, and I use the medium and large pillows. I began with a nose and mouth mask, but it was a lot of trouble to keep sealed, must be close shaved, can't wear nasal mask due to mustache, so ended up with nasal pillows. I have woken up many times earlier than I wanted due to stopp...

I did not find any either, but a search led me here. My machine is 4.5 years old (1667 sessions). Found the heating element bad, thought I could replace it. Found a replacement humidifier at cpap.com, for $140.00. But being the cheap guy I am, I wanted to fix this one.

Does anyone know of a place to buy a heating element for my m series humidifier? I hate to have to replace the humidifier when just the element has failed.