●Hygienic Unattended Line Fully Automatic and Domestic Manufacturing Mask (delivered without touching the hands during the production process) ●It uses a soft touch non-woven fabric that feels good against the skin and has a three-dimensional pleated finish that covers the chew. ●Adopts a three-layer high capture effect and a structure that is easy to breathe. ●The nose wire is made of resin, so there is no need to be discarded. ●BFE95% or higher (average grain size : about 2.7~3.0μg)