Why don't you feel angry when you wear a mask in winter, and you will feel angry when you wear a mask in summer?

Because of the hot weather in summer, people tend to feel sultry. Therefore, using masks in summer is a bit sultry.

Methods of cleaning dust: Now dust masks must implement GB2626-2006 standard. Dust masks are divided into KN 100, KN95 and KN90. Among them, the protective effect of KN 100 on ultrafine dust can reach nearly100% (more than 99.97%). If the particle size is large, you can choose KN95 grade. The protection effect depends on two aspects. One is the filtration efficiency of cotton filter. The second is the air leakage rate after the mask is matched with the face.

Methods of cleaning dust: Scientific selection of dust masks certified by GB2626-2006 is helpful to prevent lung injury.

1, select the composite half mask type. Disposable masks have a high air leakage rate.

2. Choose KN 100 level for protection.

3, choose silicone mask, which is soft and comfortable.

4, masks are divided into sizes. It is not recommended to buy those so-called universal masks, which are easy to leak.

5. It is recommended to choose a mask with smooth breathing.

The mask selected by the above method is relatively not boring.