1.Product Material: Non-woven fabric/high-efficiency filter cotton/hot air cotton

2. With a breathing valve, breathing is lighter, suitable for humid and hot environments or long-term heavy physical labor

3. Can filter oily particles with particle sizes above 0.185 microns, with filtration efficiency >95%

4. Can filter non-oil particles with particle sizes above 0.075 microns, with filtration efficiency >95%

5. Remove acid gases

6. Headband cup-shaped

7. Flame-retardant outer layer

8. Suitable for: haze, dust, exhaust, electroplating, grinding, painting, coal mines, oil fume, electric welding

9. Specifications: 10 pieces/box, 10 boxes/box