1. Disposable masks should be able to cover the mouth and nose safely and firmly, with good facial fit and no odor.
2. The raw materials of disposable masks should not use recycled materials, and should not contain harmful substances such as carcinogenic, allergenic, and skin irritation. The residual amount of restricted substances should meet relevant requirements and must not be bleached with chlorine.
3. Disposable masks should not have accessible sharp tips and edges, and should not cause harm to the wearer, and children's masks should not have exposed metal objects.
4. Disposable masks should be easy to wear and remove, there is no obvious pressure or tenderness during wearing, and the effect on head movement is small. Children's masks should use ear-hook mask straps, there should be no detachable small parts, and the mask strap should not have free ends. For masks equipped with nose clips, the nose clips should be made of plastic material.
5. The appearance of the disposable mask should be neat and in good shape, and the surface should not be damaged or stained. The material of the mask in direct contact with the skin should not be dyed.
