Conform to national standard GB2890-2009, passed LA certification

Mask material: a new silicone material, in line with US FDA standards, the mask skin and breathing are more comfortable and healthier

Mask contour: designed according to the contour of the human face, 360° fully sealed and close to the face for protection;

Wearing: Personalized design of the wearing object, the elastic state can be adjusted freely, and it is comfortable to wear;

Breathable: patented BWK air supply valve, fast air supply, stronger air permeability;

Poison filter box: adopt BFE high iodine value strong adsorption activated carbon, add potassium permanganate, nano-silver and oxidation Alkaline chemical, which doubles the effectiveness of filtering poison.