The medical type IIR mask contains at least three layers of non-woven fabrics. Among the face mask the melt blown non-woven fabric in the middle layer is the"heart" of the mask to realize the filtration function. It has outstanding adsorption and filtration capacity, and can block the spread of virus droplets.

The scale of melt blown cloth fiber is 3 μM.It raises a question.How can melt blown fabric filter the new coronavirus with a size of about 100 nm in the environment?  

Because the virus can not exist independently and its transmission route mainly includes secretions and sneezing droplets which size is about 5 μM.Furthermore,one step in the production process of melt blown fabric is electret treatment.So that the polypropylene mesh fiber can be charged with enough charge. When the droplets containing virus are close to the melt blown fabric, the particles will be absorbed by electrostatic effect. The droplets with virus will be blocked by crisscross fibers and firmly absorbed on the melt blown fabric by electrostatic force.

Aoyang has multiple1600mm large-scale melt blown lines and high-speed water-electret meltblown fabric processing lines which is specializing in the production of FFP2, FFP3 high-end meltblown fabric.The highest filtration efficiency is up to 99.97% and static electricity can be kept for more than two years.The daily production capacity is as high as 30 tons.