Designed to meet or exceed OEM performance standards but at a significantly lower price This filter is designed comparably to the OEM filter and delivers the same or better purity For use with the Invacare Mobilaire (all models) and Platinum concentrators Priced up to 35% lower than comparable OEM filter (Invacare# 1131249) Construction of body: 100% Styrene Butadien Copolymer Construction of filter: synthetic glass non-woven filter media Port size: 22 mm outlet with 3/8-18 internal threads Clear with smoke tint in color Meets or exceeds all OEM specifications including Purity Standards and Back Pressure Performance Testing Bacteria Efficiency Test: 99.9720% Virus Efficiency Test: 99.99% *