*Non-woven polypropylene melt-blown filter, without glass fibers

*Low breathing resistance , non-irritating to the skin

*Unique design, soft elastic, adjustable aluminum nose bar adaptable and easy to wear

Applications: widely used in electronic manufacturing industry, clean room, catering services, food processing, school, chemical, iron and steel, welding, hospitals, hand processing, hospital, beauty industry, pharmaceutical, plant, clean environment and other public occasions

Material: 140g-260g

Color: white, blue etc

Size: standard

Package: 20pcs/box,400pcs/ctn