How to Choose KN95 Mask

How to choose KN95 mask
The principle of the protective ability of KN95 masks lies in electrostatic adsorption. KN95 mask has a layer of melt-blown non-woven fabric, which is a kind of ultra-fine electrostatic fiber. It is made of polypropylene. It is characterized by electrostatic adsorption capacity after electret treatment, which can absorb dust and toxic droplets. However, static electricity is afraid of water. After the KN95 mask is washed with water, the static electricity is lost, and the mask is scrapped.
1. To buy masks with packaging and medical device registration information on the packaging;
2. Pay attention to check the logo of the product, check whether the product name, production date, factory name, factory address, shelf life, product instruction manual and other information are clearly marked;
3. Try on first to choose the style and model that suits you. Before using a certain type of mask for the first time, you need to try it on by referring to the instructions.
4. Do not buy masks that operators provide without proof of purchase;
5. Do not buy masks without factory name, factory address and health license number (no registration information for medical devices) or without packaging;
6. Do not buy masks with all foreign languages on the packaging and no Chinese logos;
7. Do not buy masks that do not conform to hygienic packaging and the packaging bags are not sealed;
8. Do not buy the number of layers in shortage, the actual number of layers of the product is less than the number of layers indicated on the package.
9.3D veneer design: anti-leakage, anti-fog
10. KN95 protective mask, adjustable nose clip design process, so that the mask can closely fit the bridge of the nose, improve the airtightness of the nose, the overall line of the mask is ergonomically designed, fits closely, does not leave marks and does not strangle the face, comfortable and breathable, wear Glasses do not fog up.
11.5-layer filtration: high-standard melt-blown material, using 5-layer filtration, choose high-quality materials such as melt-blown cloth, hot air cotton, non-woven fabric, etc., multi-layer material composite structure, effectively block germs in the air, and protect health and safety layer by layer.