Anti Pollution Washable Cotton Mouth 4x Mask with 8x Valve Replaceable FilterMask with Activated Carbon Non Woven Fabric, PM 2.5 5 Layer Filter, Protection for Pollen Allergy, Woodworking, Mowing, Running, Cycling, Outdoor Activities Unisex Universal Size - Face shape design, nose portion of an aluminum sheet secured to prevent slipping and velcro adjustable size, suitable for most people to protect the face.Features:Dust mask made of ultra-soft cotton. Excellent permeability and soft texture are suitable for your life.Hand you healthy and breathe safely.According to each person's nasal type to adjust, make mask and nose better fit, increase mask sealing effect, avoid breathing caused by the fog of glasses.Specification:Color: BlackSize: MediumOption Available: 4 Face Masks with 8 Filters