Invacare Polaris EX Reusable Foam Filter,2-1/8" X 1",3/Pack,1124211Price: USD2.65 Invacare Polaris EX Reusable Foam Filter is used with Invacare Polaris EX and LT CPAP machines. It collects dust, pollen, mites and other components that would otherwise make it into user 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 |