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Original title: Are N95 and KN95 masks with breathing valves effective in preventing viruses? N95/KN95 respirator is divided into respirator with breathing valve and respirator without breathing valve. As long as it is a qualified product, the protective effect of a mask with the same level of protection is the same whether it is equipped with a breathing valve or not. The difference between them lies in the resistance of breathing and the comfort of wearing. Peop a N95 mask with an exhalation valve, which can greatly reduce the respiratory resistance, reduce the respiratory pressure of the user and make it more comfortable to wear. If you wear a mask without a breather valve, there may be water droplets in the mask for a long time,KN95 Face Mask, which will accumulate heat when breathing, increase breathing resistance and cause discomfort. In this case, you can try to buy a N95 mask with a breather valve, because as long as it is a qualified product,Full Body Disposable Coverall, it will not affect the respiratory protection of the wearer. It's just a N95 mask with a breather valve, and it doesn't protect the people around it. Of course, whether to buy a mask with a breathing valve or not depends on two situations: If you are a healthy person, whether you buy a N95 mask with or without a breathing valve, the only difference is that when you wear it, you feel comfortable and wear a N95 mask with a breathing valve, which can also keep the virus out of the mask. If you are a virus carrier, KN95 Mask for Epidemic Prevention and Control ,3 Ply Disposable Protective Face Mask, for the sake of the health of the people around you, you should choose a N95 mask without a breathing valve, because thg to medical equipment. If conditions permit, it is best to buy these two types of masks. How to distinguish these two kinds of masks? The following process can be followed: Look at the registration number of medical devices-confirm that it is a medical device,Medical Full Body Coverall, look at the implementation standard-implement GB19083-2010 "Technical Requirements for Medical Protective Masks" is N95 medical protective masks-implement YY 0469-2011 "Technical Requirements for surgical mask" is surgical mask. Thanks to the contribution of Xiaomeng, the medical customer service of Philiscom, I hope I can help you! Return to Sohu to see more Responsible Editor:. zjyuan-group.com