How to identify counterfeit and inferior masks? There are generally three types of masks

The whole society is in an extraordinary period of preventing and controlling the epidemic of COVID-19 infection. Masks are relatively scarce epidemic prevention materials. The whole society is striving for more masks for everyone, but some people use this opportunity to make fake masks, disinfectant and other commodities in order to make huge profits. Recently, it was reported that the Shanghai police have cracked many such cases in a row and captured many suspect. [SEP]. At present, masks are still in high demand, and many people find it difficult to purchase them. Buying counterfeit and inferior masks is even more harmful than beneficial. This reminds us to keep our eyes open and identify counterfeit and inferior masks to avoid falling into the trap of "unscrupulous" merchants.There are generally three types of masks available