PTFE Membrane +PP Nonwoven Fabric Laminated Filter Media

        PTFE Membrane Is Reusable Face Mask New Air Filter Material & Replace MeltBlown Nonwoven For N99, N95 Mask, Medical Masks,Surgical Mask. BEF≥99% & PFE≥95% Filter Efficiency Level. Also New Material       HOT SALESCERTIFICATESABOUT US       The company mainly produces PTFE series of products of national high-tech enterprises,obtained a number of national invention patents,products sucessfully applied to thermal power,chemical industry,medicine,environmental protection and other fields.The company has a complete quality certification system and advanced testing equipment,warmly welcome you to our company!     /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1