Do N95 and KN95 masks with breathing valves have any effect on anti-virus? _ Protection

If you must use it, choose 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,Against Bacteria Breathable 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,KN95 Face Mask with Five Layers, 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.  The standard for biological masks is GB19083-2010 Technical Requirements for Medical Protective Masks, which is used in the medical and health industry, such as epidemic prevention stations, hospitals, CDC, etc. The standard of dust mask is GB2626-2006 Respiratory Protective Equipment Self-priming Filter Particulate Respirator, which is used in industries such as coal mining, petroleum processing, mining and other industrial and mining enterprises. For the novel coronavirus, N95 medical protective masks should be selected for biological protection. To sum up, the masks that can effectively prevent respiratory infectious diseases are medical protective masks and surgical mask. These two kinds of masks belong 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