Due to the outbreak of novel coronavirus, masks have become a necessity for every household? New year's goods? . Many pharmacies have sold out masks, and the methods are always more difficult than difficulties, so more and more people choose to buy them online. As we all know, the spread of this virus is spread through the liquid exhaled by the respiratory tract. So the mask we want to wear is the N95 mask. However, there are also many unscrupulous merchants who use the demand psychology of the masses to sell fake masks, but they can't prevent the spread of the virus, but they sell them at high prices. Then how can we tell whether the mask is real or not?

First of all, we can judge by the number of layers of the mask. If it has two or one layers, it is fake, and it is generally used to stop dust. Some masks also have three layers, but can they stop the infiltration of liquid? This kind is also fake. The mask we bought can be judged in this way. Let the water flow in from the outside of the mask to see if the water can flow in. If not, then the mask is a real mask! Of course, we should ask the merchants when buying, and we should also look at the introduction outside after buying ourselves!

Of course, cotton masks are useless. We should take a good look at their functions when using them. Don't use useless masks, so even if you wear them, you will have a preventive effect. In this special period, we should do our own prevention and not add chaos to society. But for those who don't send, they should be punished accordingly!

Dear friends, remember to wear a mask when you go out! We must also polish our eyes when purchasing masks. The method of judging whether a mask is true or false is very simple. We must determine whether a mask is true or not and its function in this special period. The way I said above is the simplest and most useful! For those businesses that confuse the fake with the real, they will certainly receive legal sanctions. Do you have any good methods to distinguish between true and false?