KN series masks can effectively block fine particles. The larger the number behind the letters, the higher the degree of protection. Therefore, many people think that buying a KN95 mask will be all right. But medical experts say that this is not the case. “The protective effect of the mask itself is not equal to the actual protective effect. A mask that fits well with your face is much more effective than a mask with a high degree of protection.†Cheng Zhenshun, chief physician of the Department of Respiratory Medicine, Central South Hospital When people buy masks, they should "try on" like buying clothes.   How to judge whether the mask is "fit"? Cheng Zhenshun suggested that when the public tried on the mask, the five fingers of the hands could be slightly bent and closed, and then buckled on the left and right sides of the mask to deeply inhale. If the mask is tightly attached to the face, the mask is well adhered. Otherwise, it needs to be re-adjusted. If the mask is still leaking after repeated debugging, the mask "size" and face are not suitable.
  In addition to the "size", some masks have the same degree of protection, but the materials are different, which leads to price differences. Cheng Zhenshun reminds that masks are not as expensive as possible. The material is suitable for your skin and comfortable to wear. It is also very important.
  Some people also choose masks with excessive protection levels when the air pollution is not serious, which brings discomfort. "In fact, wearing a mask like wearing clothes can completely consider the wearing comfort and protective effect of the mask, and replace it according to the daily situation." For example, Cheng Zhenshun said, for example, when the air pollution is not serious, wearing a KN90 mask; serious air pollution When wearing a KN95 mask, try to avoid going out.
  In addition, when purchasing anti-smash masks, the public can choose a mask with a breathing valve, which makes breathing easier.
  Yongxing Labor Insurance supplies protective masks that meet national safety standards . The quality is excellent, comfortable, light and efficient.
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