Mask filters

PM2.5 Activated Carbon Filter Face Mask Breathing Insert Protective Mouth Mask Filter Feature: Five layers of PM2.5 air mask filtering 10pcs mask fliters, suggest replace the fliters every week of uses for the best effect PM 2.5, ideal to protect your mouth and face from Dust, Haze,Allergies,Smoke,Pollution,Ash, Pollen,Gardening,Crafts Fliters Size:12x8cm/4.72''x3.15'' Suit for all kids mouth mask insided with fliter slot  Package Content: 10Pcs mouth face mask  Filters