Smartisan 10Pcs PM2.5 Anti Pollution Mask with Breather Valve Disposable Dust Respirator Face Mask

Dust Masks have a great filtering effect because they have 5 layers of filter, so eco-friendly and convenient.

Breathing valve : Mouth mask with exhalation valve. Exhale, automatically open the valve, gas masks discharged smoothly. Inhale, the valve automatically closes to prevent the harmful gas into the mask.It helps to breathe smoothly, glasses do not fog up, perfect for spring, summer, autumn and winter.

Adjustable nose bridge: 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.
Non Woven Fabric , Electrostatic Cotton and KN95 filtering materialthe. The adjustable elastic straps can adjust the size you fits most, men and women (kid under 5 years old are forbidden)

Indoor&Outdoor Usage : Dust respirator mask protected from airborne particles dust, germs, seasonal allergies, pollution, ash, pollen to running, cycling, hiking, skiing, crafts, gardening, anonymity and other outdoor activities like travelling to polluted countries or household,hospital,public places.