RURING Mouth Mask Filter Activated Carbon Filter Mask Filters Breathing Insert Protective PM2.5 Mask Filters for Women Men

Description

Feature: Adult Filters: 4.72''x3.15'' Suit for most adult mouth mask with filter slot. Wearing a mask with additional filter reduces the risk. Four-layer layer activated carbon filters, which will protect from a range of airborne contaminants. Masks Replacement Filters, recommend replace filter once a week for the best effect How To Use: step1:After washing your hands,take out the product; step2:place the mask pad in the mask to prevent slipping; step3:Install the mask pad,fit your face and wear the mask correctly; PACKAGING:<20Pcs Mouth Mask Filters