Adjustable nose clip respirators mask 4 layers of protection and efficient filtering. Melt blown fabric filtration. Made without glass fibers. Adaptable nose bar. Melt blown fabric filtration. Made without glass fibers. Adaptable nose bar. Brand Name : 3M Model Number: 9502+ Style: against dust, contaminants Material: non-woven fabric Place of Origin: ShangHai China Manufacturer: 3M China Ltd standard: China GB2626-2006 Product Description SizeOne SizePackage20 pieces per box valveYesWearingHead band ColorWhiterespirator filter classKn95 Details ImagesWholesale Mask Respirator website:http://www.loye-cd.com/respirators/mask-respirator/