In the past, perhaps only in beijing did we know that what was a “breathing pain”.
But it’s different now. If you want to say that you haven’t seen smog before, life seems to be a little less what.
This morning, Dr. Clove thought quietly for a moment. Perhaps it is also good for the smog to become more and more serious… It makes everyone realize their wish of “self-improvement and non-inhalation”…
Masks, as the [gatekeeper] of respiratory tract, naturally become a necessary good product in smoggy days. But there are so many masks on the market, which one can prevent haze? Today, Dr. Clove will tell you about this.
Detail 1: There are 3 kinds of common masks, but…
There is only one that can prevent haze.
The three common masks are: ordinary cotton masks, disposable masks (medical surgical masks) and N95 masks, while the only one that can prevent haze is N95 masks.
Anti-haze masks mainly prevent [fine particles] (i.e. Pollutants such as [PM2.5] commonly heard by everyone) from entering the human body.
1. Ordinary cotton mask
The most common masks can be made of cotton cloth, gauze, wool, canvas, velvet, etc., but these materials are not dense enough and [loopholes] are relatively large, so they cannot filter fine particles in the air and prevent haze.
However, it is not without merit.
It can be used to prevent cold, keep warm and cover the big face, and can also be concave to sell cute and prevent candid photography.
2. Disposable masks (medical surgical masks)
This disposable mask is used most by doctors. It can prevent many respiratory diseases.
If you go to public places such as hospitals when a certain disease is prevalent, or you catch a cold, or you want to prevent allergic reactions caused by pollen and other things, you can use this disposable mask.
However, it is still impossible to prevent haze, because like ordinary cotton masks, it cannot effectively filter [fine particles] and other pollutants in the air.
3. N95 mask
As you can see from the name, this mask is [foreign monk] (the standard of the National Institute of Occupational Safety and Health of the United States), then Dr. Clove will help it read sutras:
- N: refers to the protective [non-oily suspended particles], which are the main pollution components in smog; 95: refers to a filtration efficiency of at least 95%.
Do you instantly feel that N95 mask has strong protection ability?
Yes, N95 mask can not only effectively filter air pollutants such as PM2.5, but also be used to protect against serious infectious diseases such as SARS or bird flu, which can be said to be a sharp weapon to prevent diseases and haze.
However, the stronger the filtering ability, the greater the impact on breathing. Many people will feel that breathing becomes more difficult after wearing N95 masks. This is equivalent to the outside can’t get in, the inside can’t get out…
Therefore, although N95 mask is good, it is not recommended for pregnant women, the elderly, children or people with respiratory diseases, and healthy adults should not wear it for a long time.
If you feel difficult to breathe, you will take it off silently… right?
Detail 2: Pay attention to the three key points of wearing masks, or you will wear them for nothing…
Step 1 Wash your hands before wearing
Remember to wash your hands before wearing the mask. Don’t touch the inside of the mask with your hands when wearing the mask. Try to make the inside clean.
Step 2 Check the fit
After wearing the mask, it should be able to completely cover the nose, mouth and chin. The better the mask fits the face, the better the protective effect will be.
For N95 and other medical protective masks, it can be judged by whether the eye lenses are foggy and whether there is air leakage around the masks.
Step 3 Don’t wear it for long
As the name implies, disposable masks should be replaced once, and N95 masks should also be replaced regularly (pay attention to the validity period on the mask instructions). Don’t waste one on them.
Life has to continue, so masks are bought. However, no matter which brand of mask you buy, the key is to choose the right type.
Of course, when smog is severe, most people prefer to stay indoors.
If you don’t smoke like Dr. Clove, no one around you smokes, and you happen to have an air purifier, then life is still good, so don’t force yourself to wear a mask to go out for exercise.