100 Polyester Fabric, Made Of High-Quality Mesh Fabric, Comfortable And Soft Washable, Recyclable, Health And Environmental Protection,Can Be Repeatedly Used. Collapsible, You Can Put It Inside Your Pocket And Bring It Anywhere. Structure:The Strap Can Be Adjusted According To The Size Of The Face, M-Shaped Nose Clip, Washable, Reusable, Filter Can Be Changed (5 Layers Of Filters, Containing 2 Replacement Packs Function: Very Soft, Breathable, Washable, Adjustable Buckle, Can Protect Your Mouth And Face From Dust, Cold, Dust, Pollen, Allergies, Fog And Haze, Exhaust Emissions, Passive Smoking Package Contains: Face Mask (1pcs), 5 Layers Of Carbon Filter (2pcs), M-Shaped Nose Clip.Performance: Can Effectively Prevent Small Particles Such As Dust, Also Can Avoid All Kinds Of Exhaust Gas, Second-Hand Smoke, Saliva, Etc. Into Your Nose And Mouth, Wind And Sand. A Mask Can Better Protect Your Health. Wide Application: This Anti-Dust Bandana Is Ideal For Both Women And Men, Suitable For Cycling, Camping, Running, Travel, Climbing And Daily Use. Protect You From Fog, Haze, Vehicle Exhaust, Passive Smoking, Etc. Equipped With Two Replaceable 5-Layer Activated Carbon Filters, M-Shaped Nose Clip For A Comfortable Fit, Allows For Easy Breathability. Standard Mask:Suitable For Most Adult Men, Women And Children. Adjustable Ear Straps Can Provide You With A Comfortable Wearing Experience. Material: Made Of 100 Polyester, Super Soft And Breathable, Will Not Rub Your Face. Can Be Cleaned Many Times, Recycled, Health And Environmental Protection. The Mouth Masks Is Super Soft And Breathable, Does Not Affect Breathing And Speaking, Can Keep Comfortable For A Long Time.