Does wearing a mask work in windy weather?

Wearing a mask is very useful in windy and dusty weather.

When you go out in dusty weather, you must wear a mask to reduce the damage caused by sandstorms. As floating dust, inhalable particles and fine particles will appear at the same time in dusty weather, it is recommended to wear N95 and above protective masks.

In the absence of N95, the medical protective mask is superior to the medical surgical mask, although the latter has a better protective effect on COVID-19. The reason is that the two kinds of products have their own standards and different requirements, and the adsorption capacity and strength of meltblown cloth to viruses and solid particles are different.

The filtration efficiency of protective mask for non-oily solid particles is over 90%, and that of medical surgical mask is over 30%. Children are generally not recommended to wear protective masks. It is recommended to stay indoors as much as possible and wear medical surgical masks and eye protection products.

Defense Guide: The government and relevant departments should do a good job in gale prevention according to their duties. Close the doors and windows, reinforce the structures that are easy to be blown by the wind, such as hoardings, scaffolding and billboards, properly arrange outdoor items that are easy to be affected by strong winds, and cover building materials. Pedestrians should pay attention to riding bicycles as little as possible, and don't stay under billboards and temporary structures when it is windy.

Causes of sand blowing weather

First of all, dust sources provide a material basis for sandstorms. At the same time, the dust in the north has a great relationship with its climate. In spring, the climate in the north is dry, with less vegetation coverage, weak wind erosion resistance, less precipitation, dry and loose ground and dry and loose soil surface. If a strong wind blows, a lot of dust in loose soil will be swept into the air, forming dusty weather.

Especially in southern Xinjiang basin, central and western Inner Mongolia, central and northern Gansu and other areas, the annual average number of sandstorm days can reach more than 10 days. Moreover, human factors are also the main reason for more and more sandstorms. With the increase of population and population pressure, people's excessive demand for nature leads to the continuous expansion of desertification land area and frequent sandstorms.