The Dustproof Port Is Suitable For Face Protection For Riding, Camping, And Hiking. It Can Be Dustproof, Coldproof, And Ashproof To Prevent Pollen From Invading Your Mouth And Face. Face Protection Is Suitable For Any User (Children Over 12 Years Old). Very Useful And Very Stylish. Take Care Of Your Skin And Keep It Fresh. Can Be Cleaned And Reused