Breathable Disposable Non-Woven Anti Dust/Wind/Sand/Soot/Pm2.5/Filter with Valve for Protective Welmade Technology (Shenzhen) Co., Ltd. Base Info Standard:EN14683-2019Filter Rating:NormalAvailable Times:DisposableType:Medical Surgical MaskLayers:3 PlyStyle:EarloopShape:FlatSterilization:Non SterilizationAge Group:AdultColor:BlueTrademark:MC MedicalSpecification:175*95mmOrigin:ChinaHS Code:6307900000 Description Pre:Filterkn95/FFP1/FFP2 Face/Respirator Mask with Valve for Protective Next:Personal Protective 5-Layer KN95 Disposable Mask CE FFP2