The N95 mask is one of the nine types of particulate protective masks certified by the National Institute of Occupational Safety and Health. In theory, masks that meet the N95 standard can be called N95 masks. The filtration efficiency is more than 95%, and the virus protection ability is excellent, so the price is much higher than that of ordinary masks. N95 masks can theoretically be used for 1-2 days, but they can also be reused when masks are scarce, but it is best to wear them for no more than 4 hours at a time. Let's learn about N95 masks! 1. How much is the N95 port? N95 masks refer to medical masks with a filtration efficiency of up to 95%, which also means that the isolation effect of the new coronavirus is the best. As a medical mask with the highest protective performance, its price is relatively high, and N95 masks have become in short supply. Commodities, due to the epidemic, the cost of making masks has greatly increased, so the prices of N95 masks have also risen to varying degrees. The specific prices vary according to local prices, and some N95 masks are very expensive. However, N95 masks are generally used by medical staff. This type of mask is better at blocking droplets and germs than ordinary medical masks. For ordinary citizens, wearing a medical surgical mask is sufficient protection, and there is no need to spend Buying N95 masks at a high price will also cause a waste of valuable medical resources. 2. Can N95 masks be reused? N95 masks can theoretically be used for 1 to 2 days, while disposable N95 masks cannot be reused after they are taken off. N95 masks are highly protective, but after wearing them for a long time, there will be obvious stuffiness. In theory, the more airtight the protective material of the mask, the better the effect of blocking particles. On the other hand, the tighter the mask, the more difficult it is to breathe. Especially for patients with cardiovascular disease, it may also cause dizziness and difficulty breathing due to lack of oxygen. Therefore, it is more cautious to choose to wear an N95 mask. 3. How often to change the N95 port. The replacement frequency of N95 masks is a concern of many people. Most of N95 masks are disposable consumables, especially when they are used to prevent and control infectious diseases caused by airborne pathogens such as viruses, bacteria, and fungi, N95 masks cannot be used for a long time. Otherwise, pathogens may accumulate and multiply on the surface of the mask, and eventually the inner surface of the mask will be polluted, which will greatly reduce the disease prevention efficiency. This is slightly different from the anti-haze and industrial dust inhalation. For ordinary citizens, if there is no large-scale exposure to the virus, the structural and functional integrity of the mask is maintained, and the filter material is not physically damaged or soiled, N95 masks can be reused, but when putting on and taking off the mask, It is best to use clean hands, gloves or paper towels to avoid contaminating the mask. In addition, it is best not to wear N95 masks for more than 4 hours at a time.
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