SPECIFICATIONSApplicable: AdultBrand Name: NONECertification: ceFunction: Anti-dustHigh-concerned chemical: noneItem Type: MasksLife cycle: one timeMaterial: Non-wovenModel Number: 1866V KN95 maskNumber of Pieces: ComboOrigin: China MainlandProtection class: KN95Protective Mask: YesQuantity: 1pcs/bagSafety standard: GB2626-2006keyword 1: mouth mask with filterkeyword 2: mask for facekeyword 3: protective face maskskeyword 4: Anti-Dust Mouth Mask Please be kindly noted: Listed product is produced and distributed abroad and subject to the laws of its country of origin. About Working Time Due to the different working time in each country, there will be a delay in communication, but messages will be replied within one workday.If you have any question about product, please feel free to contact us. We try to provide you the Best Customer Service. About Shipment We will send out orders within 3 workdays. The delivery time will vary according to different countries and will be affected by weather, public holidays and so on. If you don't receive the order in the estimated time, please contact us. About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them!