Easy For Use-You don't have to worry about size when purchasing because it has Adjustable Nose Bridge also provides additional feature that is to increase sealing effect so anyone comfortably with any shape of face and nose without any hassle.
Its filtration efficiency (dust-removing rate) is more than 95% for non-oily particulate matter above 0.075 microns, and the filter material is harmless to the human body.
This respirator pollution mask can be used all year in any weather which keeps you safe from fog, smog, dust, smells, germs, bacteria, viruses, vehicle exhaust, air pollution, allergens, and humidity thus.
For your concerns, please see here
Masks can be used repeatedly. Depending on the environment, it is generally recommended to replace them once a week or so.
2. Is the protection good:
This mask belongs to KN95 grade, with good filtering performance and high filtering grade.
3. Does the mask smell?
The mask itself has no taste, but the mask is sterilized when it leaves the factory. A little taste is an inevitable phenomenon for all masks. If it is sensitive to the taste, it can be removed before drying, without affecting health.