Masks generally have a dust-proof effect, but the quality and performance of masks are different, so the dust-proof ability is naturally different. If it is only used by ordinary people, then the dust-proof level of disposable masks is enough. For non-disposable masks, you can choose cotton materials with good air permeability. Such masks are also dust-proof enough. Next, let’s take a look at how to choose a mask! Methods/Steps When choosing protective masks, some people's jobs require them to work outdoors temporarily, such as traffic police, cleaners, etc. You can use a cotton mask at ordinary times. If the air pollution is serious, you should wear a PM2.5 mask, such as an N95 mask. If you are only outdoors on your way to and from get off work, you should choose a KN90 mask to protect yourself from air pollution. It can capture about 90% of particles below PM2.5 without having much impact on your breathing. The effects are also different. Medical protective masks are a type of tight-fitting, self-priming, filtering protective mask. There are many types of masks. It is used to prevent diseases and can play a role in preventing influenza A. Ordinary gauze masks are just a kind of health care product. They have a certain effect on filtering dust, microorganisms, etc. in the air, but the effect is average. Ordinary civilian masks are generally used for warmth and are made of different materials and specifications, so they cannot be used to prevent diseases. N95 masks are relatively high-performance masks that can isolate bacteria, filter viruses, and can be used to prevent air pollution. When choosing a mask, choose the type according to its purpose. The higher the protection level, the higher the specifications of the mask. There will also be greater resistance to normal breathing. When choosing a mask, you should not only look at its specifications but also consider whether it is comfortable to wear. When used to prevent air pollution, KN90 masks are generally chosen, which can filter 90% of particles below PM2.5 and will not affect breathing too much. If a person has weak respiratory function, he or she should not wear a mask with too much resistance, as it may cause breathing difficulties and even affect the safety of life. The above is how to choose a mask. It is best to choose one that fits your face better. A mask that is too big or too small should have a large breathing resistance. If you have difficulty breathing after wearing a mask, you should take it off. It is not advisable to wear a mask for a long time. If it is not a disposable mask, it is best to wash it frequently and expose it to the sun to keep it clean. |
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