humidifier, as that is an added expense. The
machines have been
replaced a few times though. Now I am wondering if the lung nodules could have been caused by my uncleaned CPAP, which frequently had old and unwashed tubing and masks. Anyone know of an established correlation?
Also, my brother tells me that the guidelines for replacing masks, tubing, etc. have recently been revised to shorter periods. Of course insurance companies probably haven't revised anything.