1. Multiple small eyelets on it, good air permeability, coupled with the double air valve, the breathing is more smooth.
2. Combining with ergonomic arch design, covering the bridge of the nose. The aluminum sheet is fixed and non-slip, which is firm to wear and more protective.
3. Adjustable hook and loop closure on the back of the mask, adjust the size according to personal needs, and fit more comfortably.
4. The non-woven fabric filter mask function can effectively filter allergens, smoke, dust, pollen, floating dust, bacteria and other harmful substances to the human body from exhaust gas and air emitted from steam and locomotives. Protect your upper airways and lungs. It can also prevent the spread of air pollution from diseases.
5. The entire pair of masks can be washed with water, do not rub, and can be used again after hang dry.