The worst fog and haze in the second half of the year is coming. Is it useful to wear ordinary masks?

It is useful, but it only has a blocking effect and has a poor filtration effect. The specific analysis is as follows: 1. Ordinary blue masks have a blocking effect on fog and haze, but their filtration efficiency for PM2.5 is low. .

According to the latest report from the China Meteorological Observatory, the most severe fog and haze weather in the second half of the year is coming. When it first hits Shandong, Shaanxi, Hebei and other places, the air quality will drop sharply and visibility will be low. For this reason, the China Meteorological Observatory reminds the general public to wear masks when going out.

How to choose a mask? Can I wear an ordinary blue mask? Yes, it is possible, but it is not very effective and cannot really protect, it can only act as a barrier. Because ordinary blue masks are most effective against PM10, while fog and haze are mainly PM2.5. It is only a matter of time before PM2.5 penetrates ordinary blue masks.

PM2.5 is also poisonous. If you inhale too much, it will be harmful to our human body. Therefore, friends who have the conditions should choose masks with the GB19083-2010 standard, which are specially used to protect PM2.5. Even if you don’t have an ordinary mask, you should wear it. Wearing one is better than not wearing one. Don’t make fun of your health. You must know that your body is your own, and your health is also your own, and no one can take it away from you. 2. Wearing a mask can prevent smog to a certain extent, but it cannot be worn for a long time. ?

I need to remind all my friends here that although wearing a mask can prevent smog to a certain extent, you should not be stupid enough to wear a mask all the time. Wearing a mask for a long time can easily cause the nasal cavity to lose its original physiological functions, and the nose will become fragile. When the haze does not poison you, but you end up in the hospital because you wear the mask for too long, then no one will pity you.

But think about it, normal people cannot wear masks for a long time. You must know that if a person wears a mask for a long time, if nothing else, he will feel short of breath. No matter how stupid he is, he knows to take off the mask and put it back on later.