95% Efficiency Rate 0.3um Naci 90% Efficiency Rate 0.3um Naci 85% Efficiency Rate 0.3um Naci 93% Efficiency Rate Naci Meltblown Filter Cloth 50% Filter Efficiency Naci 0.3um 90% Efficiency Rate Filter Media Pm2.5 Filter 60% Efficiency Rate Meltblown Bfe99 95 95% Polyester Fabric 95%r5%op