I use a Respironics REMstar CPAP, at 13cm. I use the mask that didn't work for you, the ResMed Ultra Mirage. For me it works fine; it was a great improvement over their previous model of full face ...

Cold air from the CPAP machine can mean the humidifier isn't working right. Snoring with a CPAP on might mean the pressure needs to be adjusted. Feeling worse or tired with a CPAP might mean its ...