Mask machine manufacturers share misunderstandings in the use of anti-smog masks

With the rapid development of the economy, the deterioration of the environment, the air quality is getting worse and worse, various air pollution problems have received great attention from the society, and people are paying more and more attention to their own protection. Among them, one of the obvious phenomena is that many citizens have developed the habit of using masks when going out. But in the process of using masks, we often have some wrong practices.

Misunderstanding 1. Wearing for a long time

Masks with better airtightness should not be worn for more than 2 hours, and should be taken off for ventilation in about half an hour. In addition, in the process of taking off and wearing, try not to expose the inner layer of the mask to the outside, it will come into contact with the outside dirty air and reduce the service life of the mask.

Myth 2: Wearing a mask is healthy

Anti-smog masks can indeed block the harm of pollutants and germs to the human body, but people with severe hypertension, heart, lung or respiratory diseases or difficulties (such as asthma, emphysema) should not wear masks, which may cause Danger.

Misunderstanding 3. Masks can still be used after cleaning

The filter element of the anti-smog mask is made of electrostatic adsorption material, and it will fail after washing. It will not only prevent the haze after wearing it, but the damp filter will also breed bacteria, which further threatens human health.

Misunderstanding 4. You can pick it up when you get on the subway

Many people take off their masks after getting on the subway, which is wrong. Subway, bus, shopping malls and other public places are crowded, and the flow of people is large. There must be a lot of pollutants in the air. The content of PM2.5 in the subway is many times higher than that in the outdoor. Therefore, it is recommended that everyone be honest on the subway in haze days. Wear an anti-smog mask.

Misunderstanding 5. Whether the mask has an exhalation valve is of little significance

Professional anti-PM2.5 masks are divided into two types: with exhalation valve and without exhalation valve, and are marked with N, KN and other signs. N95 means that the capture capacity of particles smaller than 2.5 microns is 95%; KN90 is the capture capacity of 95%. 90%. People with poor heart and lung function are recommended to choose masks with air valves as much as possible. The wearing time of such anti-fog masks is generally about two days. It is reasonable to use a mask 3-5 times for 1-2 hours each time.

Misunderstanding 6. Do not take off your mask when coughing or sneezing

When coughing or sneezing, a large amount of exhaled heat and saliva will wet the mask, its effect of blocking germs will be reduced, and the protection will be deteriorated. It is recommended to take off the mask and wear it after coughing or sneezing.