Filtering Efficiency: The filtration efficiency of particles with aerodynamic diameters of 0.075 microns +- 0.020 microns can be more than 95%.
Four Layer: Four layer design, filter the pollution, gases, odors, dust, pollen, smog, PM2.5 effectively.Colors and styles shipped randomly
Features: Comfortable, breathable, skin-friendly, makes you rest assured to use, 3 layers for 95% filter, effective filtering of dust, pm2.5, air pollution, car exhaust, elasticated head strap for a universal tight fit around the mouth and nose.
Easy to Store: Dust mask is foldable for easy storage and can be used indoors and outdoors. Suitable for people of all ages. It is ideal for carpentry, sports, exercise, city cycling, running, cycling and motorcycle riding and travel.
Satisfaction Guaranteed: Customer satisfy is our eternal pursue. If you have any problems with our product, please feel free to contact us, we will fix any of the problems within 24 hours.