N95 grade BNN Taiwan-made three-dimensional four-layer dust mask can separate PM2.5 50 boxes blueProduct specifications:
Packaging: 50 packs/box Date of manufacture: marked on the packaging Shelf life: 5 years
Material introduction Outer layer 1 - Water repellent polypropylene non-woven fabric (polypropylene) to prevent moisture,
Mist seeps in.
Outer layer 2-high density filter bacteria meltblown non-woven fabric (meltblown) electrostatic non-woven fabric with high filter efficiency.
The inner layer 3-high density filter bacteria meltblown non-woven fabric (meltblown) with high filter efficiency electrostatic non-woven fabric.
The inner layer 4-superfine composite fiber is hydrophilic and absorbent, which can completely absorb the moisture during breathing.
The dust blocking effect is as follows:
Arrived in early March