... pcs/box, 16 boxes/ctnCertification: EN149:2001, FFP2 standardApplication:* Hospital, Industrial factoryIt can effectively keep the dust outside.* Personal CareUse when ... face mask, cleanroom wiper, cleanroom paper (SMT), antistatic garment, antistatic gloves, antistatic shoes and sticky dust series. Our products are tested ... feel free to contact me. Thank you! Cup Dust Mask For Industrial Use