Excuse me, is wearing a mask effective in foggy days?

Hello, this is a very serious and valuable topic. Because of the recent frequent attacks on cities, anti-haze masks have almost become the standard for citizens to travel, but there are various anti-haze masks on the market. Which anti-mite mask is more reliable? Someone did a mask experiment, and the result was:

1. 3M mask without breathing valve has the best filtration effect, and the filtration rate of PM2.5 can reach 96.5%;

2. Among ordinary masks, the most obvious filtering effect is the disposable medical care mask, with the filtering effect of 47.1%;

3. The cotton mask commonly used by ordinary people has a filtering effect of only 17.3%.

In addition to the filtering effect of materials on PM2.5, there are two key factors in anti-fog masks:

First, whether to stick to the face, whether there is much air leakage around the nose and chin, and a mask with poor facial sealing is equal to not wearing it. Here we tend to recommend masks worn on the head, rather than masks hung on the ears.

The second is whether breathing is unobstructed, that is, whether people's normal breathing can be guaranteed. If you can't breathe well, there will be a lot of water vapor. Students who wear glasses all have this experience. After wearing masks, they will cover their glasses with a layer of fog. So I suggest you choose a mask with a breathing valve.

In addition, the outer layer of the mask often accumulates a lot of dirt such as dust and bacteria in the outside air, while the inner layer blocks exhaled bacteria and saliva. Therefore, the two sides can't be used alternately, otherwise the polluted dirt on the outer layer will be sucked into the human body directly and become the source of infection. When not in use, the mask should be folded and put into a clean sealed bag, and the side near the nose and mouth should be folded inward. Don't put it in your pocket or around your neck.

In addition, if you need to take your children out, and children often don't like to wear masks, it is recommended that Ma Bao, a baby with a baby, have an anti-fog stroller designed for infants, which can effectively filter the smog air and let the baby breathe fresh air anytime and anywhere ~