Wholesale Certification Disposable Surgical Face Mask Sh9550 Shenzhen DSD Technology Co., Ltd. Base Info Model NO.:sh9550Filter Rating:N95,KN95,FFP2Function:Protection, Surgical SuppliesProduct Name:Disposable Face MaskLayer:3 Ply MaskBfe:95% - 99.9% Description Pre:Wholesale Disposable Medical Face Mask Sh9550 Next:High Quality Disposable Medical Isolation Clothing