Size: 17.5cmx9.5cm, 50 pieces / box.
Disposable protective mask is made of two layers of fiber non-woven fabric, which is used for sanitation. One layer is added in the middle, and more than 99% of the filter solution spray fabric is filtered and sterilized. It is welded by ultrasonic wave. The nose is made of environmental friendly plastic strip, free of any metal, equipped with air permeability and comfortable. Filtering effect b.f.e up to 99.8%.The mask is soft with no uncomfortable pressure points, making it ideal for extended wear.