At present, it is the season of high incidence of various respiratory diseases mainly caused by influenza A. Many citizens choose to wear masks to prevent diseases and cold. Experts from the disinfection department of the Municipal Center for Disease Control and Prevention said that they come to the hospital to visit patients, see doctors or crowded people, and the air is not good. It is right to wear masks to prevent diseases in public places in circulation, but if the masks purchased are unqualified or not properly worn, it will greatly reduce or lose the protective effect of the masks, and even bring some other harm to the human body. Disinfection experts reminded that wearing masks to prevent nail flow, you need to be cautious when buying wear.

According to experts, the disease prevention masks currently on the market mainly include N95, surgical masks, gauze masks and cotton masks. The main method of spreading of the pandemic influenza is the close-range droplet transmission. . But in the past two years, various colorful and fashionable "cartoon" masks seem to have become a popular trend. They are sold in some jewelry stores and can be bought for a few dollars. These masks are only wrapped in a layer of transparent Plastic bags. There is no information about the manufacturer. Made of gauze, it has the effect of protecting the respiratory system and preventing germs. There are also some made of polyester fiber, and cartoon patterns are printed on the surface of the mask. This mask is fashionable, but it may not necessarily protect the respiratory system. The low-cost printing and dyeing masks, which contain chemical fiber, are printed with colorful cartoon patterns on the front and have poor air permeability. Healthy people wearing such masks are not very beneficial to the respiratory system. Chemical fiber fabrics may stimulate the bronchial tubes. Some printed masks have unqualified dyes, and they may cause skin allergies and uncomfortable nose symptoms. Some patients with allergies and asthma wearing this mask may worsen their condition.

Experts reminded that the state not only has strict regulations on the thickness, number of layers and breathability of masks, but also safety index requirements. For general textiles, there are also five indicators such as color fastness, formaldehyde, PH value, and banned carcinogenic dyes. Fashion masks are not medical masks, and they have not been strictly disinfected. Many masks are not made of pure cotton yarn and contain many polyester fibers. Some pictures have only 2 to 4 layers of lightweight gauze, making it difficult to effectively filter viruses and dust in the air. Other masks are too big or too small to wrap the face tightly and comfortably. Dirty air is still sucked into the human body without filtering. Therefore, try not to buy fashionable "cartoon" masks, when buying other masks, one depends on the feel. The regular "multi-layer" mask has more than 12 layers. The mask feels soft, flexible, thin and even without obvious agglomerates. And those inferior masks have some interlayers made of hard plastics, some rotten gauze, and some soft tissues. If you examine them carefully, you can feel the feeling in your hand. The second is to look at the packaging. The packaging of masks produced by regular manufacturers is carried out in accordance with strict regulations. Consumers can choose those mask products with independent small packages when they buy to avoid secondary pollution to a greater extent. In addition, when purchasing, you should also pay attention to the production information such as approval number, trademark, factory name, factory address and telephone. The third is the selling point. Consumers can buy masks in regular shopping malls, supermarkets, and pharmacies. The price of 12 to 16-layer masks is generally around three or four yuan. Consumers should be cautious when buying "bargains" of 1 to 2 yuan in some small commodity markets. In addition, if you choose a nose clip, the protective effect will be better.

Choose a suitable mask, but if it is not worn properly, its protective effect will be greatly reduced. When wearing a mask, you must cover your mouth and nose completely. When wearing a mask, distinguish between inside and outside. Do not interchange. If you wear it outside for a while, and then change it inside again, a lot of bacteria and viruses will be sucked in. Prepare some more masks, change them frequently, cook and disinfect for 10 minutes. Wash, dry and pack in time for use. In principle, each mask should generally be worn for no more than 2 hours, and you should change it every day. In addition, you should not sprinkle fragrance on the mask, because the fragrance will stimulate the respiratory system and induce respiratory diseases, do not often touch with your hands when wearing.