NANO masks use nanofiber filters, by virtue of the small diameter of the fibers (typically 100-300nm), have large specific surfaces that are most suitable to capture by diffusion the nanoaerosols that can penetrate deeply into our lungs, causing infection, sickness and even death. The nanofiber is a new material made by building these fibers sterically for a fishnet structure that has better permeability, blockability, and durability than any fiber ever invented. This structure basically provides airhole in the mask texture which is smaller than any virus & germs & many different dust.
 
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