Made with special 3ply non woven material, adjustable nosepiece and inner soft foam. Loaded PP material with low breathing resistance and high filtration and static electricity, to efectively resist normal toxic and tidy mocron particles against unpleasant organic acid vapors. Used in mining, building, grinding drugs, casting, farming, etc...3ply non wovenCE CertificateN95 FFP2 standard... Model NO.: 0004 Origin: China Packing: as per your request Company: Changshu Shuncheng Import & Export Trading Co., Ltd.