Masks filter materialFor good respirator filter material, should have the following three conditions, one is in the facial mask and users and good filtering under the condition of high efficiency, the second is respiratory resistance is small, 3 it is the user feel comfortable. Dust class material has a var.[detailed]

Efficiency of dustMasks the dust efficiency of high and low is the fine dust, especially for micro 2.5 meters below the dust efficiency as standard. Because the particle size of dust can directly into the alveoli, the effects on the human body health is the largest. Gauze masks and the principle of dust is .[detailed]

N series: protective non-oily suspended particles with no time limitR series: protective non-oily suspended particles and oil aerosols khan time limit for eight hoursP series: protective non-oily suspended particles and oil aerosols khan has no time limitWhen some carrier of particulate matter is oily, and .[detailed]

Planar masks are divided into: cotton masks, non-woven mask mask, polymer materials, powder active carbon filter masks, activated carbon fiber felt pad masks.Size: 18 x 9 (adult), 15 x 9 (children).[detailed]

JinYi "turn followed the old" : "at this time, he told me my mask up, covered her nose, lest you fly into nostrils."China is the first using a mask in the world. In ancient times, the people in the court manner in order to prevent dust and pollution and started to cover nose and mouth wi.[detailed]

Mainly used in clean, polished, dont change the shape of the workpiece surface, has the very good usability.[detailed]