This product is a disposable 3ply medical mask, which is a non-woven type, suitable for breathing & protection in daily life. The non-woven and filter cloths are folded, heat-sealed, cut, and spot-welded elastic bands.
Model: GB / T 32610-2016 Protection Level: Bacterial Filtering Efficiency (BFE) ≥95% Usage: This product is a single-use product, cannot be reused, and should be used as soon as possible after opening the package Notes: It should be stored in a dry, ventilated, non-corrosive gas environment, away from fire sources and flammable materials. Store under specified conditions, valid for two years. Please use medical waste disposal methods after using the product. Handle properly.