Westmed Inc BlockAide Filter Elliptical Patient Mouthpiece - FILTER, PULM FNCTN, ELLP MTHPC, 33.63X37.39 - 6906-6E

BlockAide Filter Elliptical Patient Mouthpiece - The BlockAide filter media consists of a special blend of polymers with a highly stable electrostatic charge on every individual fiber, which allows it to consistently achieve high efficiencies by using both the electrostatic charge and mechanical impaction to remove airborne bacterial and viral particles.