Classification of protective masks
With the continuous deterioration of the environment, masks have become a necessity for many people's lives, which can prevent us from absorbing harmful and toxic substances. At home, lampblack is a headache, so some people want to wear masks, but this leads to a question: can masks prevent lampblack? In this regard, by the small editor for everyone.
① Ordinary gauze mask: the most common mask in life, which can be bought in supermarkets, online and drugstores, is also what we often call disposable masks.
② Medical mask: don't buy it online. It is usually sold in regular drugstores. This kind of mask can prevent lampblack.
③ Daily protective mask: professional, mainly used to prevent haze, commonly used by Beijing residents.
④ Dust mask: professional mask, better anti haze effect. The mask is mainly used to prevent dust, smoke, fog and microorganism. It is divided into kn100, kn95 and Kn90 grades. Kn100 grade can effectively prevent the superfine dust rate of more than 99.97%.
⑤ Oil fume mask: as the name suggests, it is a mask that can prevent oil fume, that is, the cotton mask mentioned above. It is mainly used to prevent oil fume and oil mist, and can also prevent dust, smoke, fog and microorganism. It is divided into kp100, kp95 and kp90 grades. Kp100 grade can effectively prevent the superfine dust rate of more than 99.97%.