ALL PRODUCTS disposable three-layer masks are made of two layers of non-woven fabrics and filter paper; disposable three-layer masks are made of two layers of fiber non-woven fabrics professionally used in medical and health, with an additional layer in the middle to filter and prevent bacteria More than 99% of the filter solution spray cloth is made by ultrasonic welding, and the nose bridge is made of environmentally friendly all-plastic strips, does not contain any metal, and is equipped with steam permeability, which is comfortable. The filter effect BFE is up to 99%, especially suitable for electronic factories; the disposable activated carbon mask is made of 28 grams of non-woven fabric on the surface, and the first layer in the middle is anti-bacterial filter paper with anti-bacterial filter paper of 99%, which plays an anti-bacterial role , To prevent virus hazards; the middle second layer is made of new-type high-efficiency adsorption and filter materials-activated carbon fiber and activated carbon cloth, which has the effects of anti-virus, anti-odor, filter bacteria and dust resistance;