Termin8 Adult Face Mask Emoji The Washable Face Mask fits snugly around the face to prevent particles and harmful substances from entering your nose and mouth. It has a replaceable activated charcoal filter design (mask+ filter = double filtration). The Washable Fashion Face Mask is designed to be re-usable and will filter out a minimum of 95% of particles when used in conjunction with PM2.5 Filters Note: The Washable Face Mask holds 1 PM2.5 Filter (Filter Not Included) Use Method: - Stretch and unfold the mask - Insert the filter cloth into the interlayer - Put the Mask against the chin, Put the elastic band behind the back of the neck and ear - Place the finger in the middle of the clamp and press it from the middle to the two sides of the beam, and directly press it into the bridge of the nose