Tsvaga mhinduro yekupedzisira yekudzivirira kwemagetsi ne ePTFE isingapindi mvura inofema inodzivirira vent membrane.Yakagadzirirwa chaizvo kuti isangane nezvinodiwa zvinodikanwa zvemaindasitiri akasiyana, iyi membrane yepamusoro inovimbisa kuita kwakaringana uye hupenyu hurefu hwemidziyo yemagetsi.Iine yakasarudzika mvura uye inofema zvinhu, inonyatso kuyera mukati nekunze kudzvanywa kwakasiyana, kuchengetedza magetsi ako kubva mumvura, kemikari corrosion, tembiricha yepamusoro, UV mwaranzi, huruva, uye oiri.