BEFORE PLACING YOUR ORDER CONTACT US SO WE CAN CONFIRM AVAILABILITY AND OFFER YOU A DISCOUNT CODE. YOU MAY DO THIS VIA CHAT OR EMAIL [email protected] SEND US THE PRODUCT NAME AND WE WILL PROVIDE THE DISCOUNT CODE. WE PREFER CHAT TO GET RESPONSE.The product is non-woven fabric such as ultrasonic heating, spot welding and banding with processes, Cellulose and paper / plastic-coated carbon steel, disposable and non-sterile. Air permeability, hypoallergenic, dust prevention and sterilization. They are able to block dust and microorganisms, and it will not cause tension or anaphylactic reaction for long-term wearing. Smooth cloth is adopted to reduce the falloff of fabrics, which is wash-free, maintenance-free, convenient, practical, safer and more healthful. Filter mask helps decrease the transmission of viruses and germs. Keep your friends, family members and others from contracting your cold of flu.