Regarding the expert's view that ordinary medical masks cannot prevent sandstorms, we can express and summarize the points from the following aspects:
Characteristics of sandstorms:
Sandstorm is a general term for sandstorms and dust storms, and is a sign of desertification.
It is a disastrous weather phenomenon in which strong winds roll up a large amount of sand and dust from the ground, making the horizontal visibility less than 1km.
Dust particles in sandstorms vary in size and may contain a large number of larger particles.
Protective characteristics of ordinary medical masks:
Ordinary medical masks are mainly used to filter bacteria, viruses and other microorganisms in the air, and their protection is mainly aimed at tiny biological particles.
The protection rate of medical surgical masks can reach about 81% for fine dust, but for larger dust particles, its filtering effect may be limited.
Protective measures under sandstorm weather:
In the sandstorm weather, the dust particles in the air are large and numerous, and ordinary medical masks may not be able to completely filter these particles.
Therefore, experts recommend that in sandstorm weather, you should wear a higher level of protection masks, such as N95 masks or professional dust masks.
Other protective measures:
In addition to wearing masks, other protective measures should be taken during sandstorms, such as wearing windproof glasses, hats, gauze and other dust-proof appliances to reduce the damage caused by dust to eyes, skin, and hair.
Minimize going out, especially when sandstorms are severe, and avoid prolonged exposure to sandstorms.
To sum up, although ordinary medical masks have a certain effect in filtering small biological particles, their protective effect may be limited in sandstorm weather. Therefore, it is recommended to wear masks with higher protection levels and take other necessary protective measures to reduce the health hazards of sandstorms.
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