Precautions for wearing masks in winter

Winter is the high incidence of haze weather. Smog contains a large amount of PM2 5, which easily enters the human respiratory tract, irritates mucous membranes and even damages the lungs, and easily induces many diseases including respiratory tract infections. At this time, the adverse effects of wearing a mask on human health are lighter than the dirty particles in the air in foggy days.

In daily life, due to the cold weather in winter, people often choose masks. Masks can avoid colds, help regulate their respiratory system, avoid smog and reduce respiratory function. Usually, people need to know the choice of masks as soon as possible. What are the precautions for wearing a mask in winter? Everyone should pay attention to a comprehensive understanding.

Whether to wear a mask or not depends on "looking at the sky"

In real life, some people who are afraid of the cold wear big masks all day, thinking that they can keep out the cold. Actually, this is unscientific. The surface of human respiratory tract, such as nasal cavity, throat and trachea, is covered with many mucous membranes, and there are microvessels under the mucous membranes. When the nose sucks in cold air and enters the lungs through winding pipes, it is close to body temperature.

This physiological function of the human body is enhanced through exercise, thus improving the cold tolerance. If you wear a mask, the nasal mucosa and the whole respiratory tract will not get exercise, and you will catch a cold if you are not careful, so it is easy to catch a cold. Therefore, it is not good for your health to "put a mask on your mouth" all day in winter.

However, winter is the high incidence of haze weather. Smog contains a large amount of PM2.5, which is easy to enter the human respiratory tract, irritate mucous membranes and even damage the lungs, and easily induce various diseases including respiratory infections. At this time, the adverse effects of wearing a mask on human health are lighter than the dirty particles in the air in foggy days.

There is no need to wear a professional protective mask.

At present, there is no national standard for civil masks, and the quality of masks on the market is mixed. Be sure to choose masks with big brands and formal product packaging and instructions, such as disposable medical surgical masks or gauze masks with more than 12 layers. Don't be greedy and cheap, buy masks at stalls without health permits.

You don't need to wear professional protective masks such as N95 and N99 to filter PM2.5. Theoretically, the more airtight the protective material of the mask is, the better the effect of blocking particles is. On the contrary, the more airtight the mask is, the more obvious the increase in respiratory resistance is, and the more difficult it is to breathe. Wearing professional protective masks such as N95 and N99 requires training, otherwise it will easily lead to dyspnea and dizziness due to lack of oxygen.

There is no need to wear a mask all day. Once the visibility improves and the smog disappears, or in the clean air environment such as cars and indoors, you can take off the mask. In addition, when using the mask, avoid alternating use of both sides and replace it at least once a day; Clean and disinfect the worn masks every day. When cleaning the mask, you should first put the mask in boiling water for a few minutes, then take it to the sun to dry, so as to play the role of sterilization and disinfection.

People who wear glasses should pay attention to removing the fog from their lenses.

In winter, if you wear a mask and glasses at the same time, trouble will come-the hot air you exhale will definitely pass through the gap between the nose corners on both sides and the mask, and get between the lens and the eyes. A little longer, the lens will be blurred by fog, which will greatly affect people's sight and activity safety.

There are still some ways to remove the fog from the lens. It is best to choose a resin lens or "anti-fog lens" with good heat dissipation. You can also buy "anti-fogging agent for glasses" in the market. General antifogging agents have the functions of "cleaning, decontamination, frost prevention, antifogging and vision protection". They are non-irritating to skin, non-corrosive to mirrors and easy to use. They can be used for 65,438+0-3 days without fogging.

Of course, you can also make your own "anti-fog glasses". First, put the completely dissolved soap slices into 10 ml warm water to make soap solution, then pour 30 ml glycerol, preferably a few drops of turpentine, and finally stir evenly, and the "anti-fog glasses" will be made successfully.

When in use, just coat the antifogging agent on the lens and then wipe it with the glasses cloth. The antifogging agent can be used continuously for 3-4 hours. This method is most suitable for people who are often outdoors in winter and wear glasses and masks at the same time, because once anti-fog water is used, glasses lenses can be worry-free for half a day.

Warm reminder: In real life, many people wear masks all day because they are afraid of the cold, which can prevent the cold, but it is harmful to breathing. In normal life, everyone needs to fully recuperate their bodies so as not to affect their lives. In addition, wearing a mask also needs to pay attention to some matters. It is not a professional mask that effectively prevents colds.