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

2. Features: · Can effectively filter non-oily particles larger than 0.075 microns, filtration efficiency>959

3. Ear straps: foldable/head strap foldable

4. Applicable to: haze, dust, exhaust, grinding, painting, coal mines

5. Packaging: 50 pieces/box, 10 boxes/carton