[comprehensive] Anti-mite masks may not be good experts recommend to wear disposable medical masks

At present, there are haze days in many places in China and the air is seriously polluted. During the hazy days, the concentration of PM2.5 in the air is high and it is easy to induce various chronic diseases and cardiovascular diseases. Many people choose various ways to "fight against jealousy". In fact, there are some misunderstandings. Jinling Evening News reporter interviewed medical experts and listened to their suggestions.

Haze and haze hospital respiratory department overcrowding

In recent years, as far as the haze days are concerned, the respiratory departments of many hospitals in Nanjing are overcrowded. Many patients have a feeling of discomfort with dry nose and throat and it is even more painful for patients suffering from allergic rhinitis, bronchial asthma and other diseases.

Ding Yiyan, deputy director of the Department of Respiratory Medicine at Nanjing Chest Hospital, said that in the hazy days, patients with chronic lung lesions are prone to acute exacerbation of related diseases, there are two main categories: First, chronic obstructive pulmonary disease, such as Chronic bronchitis, acute exacerbation of chronic asthma; Second, pneumonia. Taking Nanjing Chest Hospital as an example, there are nearly 250 beds in the Department of Respiratory Medicine, but recently it has been difficult to obtain a “bed” and the hospital has increased the number of beds, but it is still difficult to meet the demand.

In clinical practice, many patients blame PM2.5 for smog. Ding Yiyan said that the acute outbreak of chronic diseases is actually not related to PM2.5. "PM2.5's health hazards are mainly long-term. The acute outbreak of chronic diseases is mainly caused by smog, bacteria, viruses, and harmful particles."

It is recommended to wear a disposable medical surgical mask

Haze is harmful to human health. Therefore, many people are using various methods to fight paralysis. However, many people have misunderstandings about the haze.

First, many people are ill and think that the chief culprit is PM2.5 in smog. In fact, in smog days, many patients are acutely infected and have cough, asthma, pneumonia and other diseases, mostly because of the bacteria in smog. And the virus. Therefore, wearing a mask, do not always think about preventing PM2.5, but also think about preventing bacteria, viruses and harmful particles. In this regard, Ding Yiyan, deputy director of traditional Chinese medicine doctors do not recommend wearing a regular gauze mask or cotton mask, these masks on the bacteria, the virus blocking effect is not good, it is recommended to wear a disposable medical surgical mask, the bacteria, viruses and other blocking rate 70%.

Second, the long-term harm of PM2.5 to the human body is very great. For this reason, there are various types of moth-proof masks on the market, but the effect is not necessarily as advertised. "PM2.5 mask" is just a collective name for masks that can filter PM2.5. For the filtration method, masks that can filter PM2.5 require a filter whose aperture is smaller than 2.5 microns and blocks PM2.5 particles out. Therefore, it is unreasonable to say that some kind of filter element used in a mask can absorb PM2.5 or eliminate PM2.5 through chemical means. Masks that claim to “absorb” or “eliminate” PM2.5 are mostly gimmicks.

These four methods help fight

There are many kinds of ways to fight brats on the Internet, and it is hard to distinguish between true and false. For example, some people eat foods that have the function of clearing the lungs in the haze days, and think that this can reduce the harm of smog. In this regard, Ding Yiyan, deputy director of the TCM physician said: "One is the digestive system, one is the respiratory system, the method of eating food is very limited."

However, in the event of haze, there are indeed some situations that require attention. The details are as follows:

First, haze days, try not to open the window ventilation at home. If conditions permit, open the home's fresh air system or purchase an air purifier. Experts believe that it is not time to buy an air purifier once and for all. Like the water purifier, the air purifier needs to be cleaned periodically, and it is necessary to periodically replace the filter, bile and other equipment to maintain its purifying effect. Otherwise, the filter of the purifier itself will become a source of pollution and cause secondary pollution to the air. The increasing frequency of haze will accelerate the frequency of cleaning or replacement.

Second, try to wear a mask when you go out. Fog and haze weather masks are hot, and wearing masks has a certain filtering effect on the air that enters the lungs. Attention should be paid to reasonable selection and proper use.

Third, cleaning the face, nasal cavity, can help maintain the nasal cavity clean, remove accumulated bacteria, viruses and allergens, reduce nasal congestion and edema, restore and promote the normal function of the nasal cavity. In addition, there are many harmful substances and dust in hazy weather, and it is easy to attach to clothing. Therefore, when returning home, it is best to change the coat and pay attention to cleaning.

Fourth, green plants have also become one of the public's choices in the face of haze days, but experts believe that the photosynthesis of plants is limited in haze days, so the effect of green plants to improve air quality is not obvious. Green vermillion plants such as green radish and evergreen can be planted in their own balconies, terraces, and indoor areas. Because of their large blades, their adsorption capacity is relatively strong. (Li Youming Li Hua Wang Lihao Ni Jing)