Resmed Disposable S7 CPAP Filter,1-1/4"x 1-1/2",2/Pack,CF2103-2Price: USD3.49 Resmed Disposable S7 CPAP Filter is an essential component of the CPAP machine. It collects dust, pollen, mites and other components that would otherwise make it into your lungs and disrupt sleep.Other products from H e a l t h P r o d u c t s F o r Y o u |