Due to the outbreak in January, masks are urgently needed in China. Therefore, a large number of mask manufacturers, as well as related raw material manufacturers, have emerged. The most important material is melt blown cloth. At that time, many factories changed to produce melt blown cloth. Since the melt blown cloth is the main protective barrier of the mask, the Chinese government focuses on controlling the production of the melt blown cloth. Now, the melt blown cloth is a very common product in China, and the price has dropped a lot. Due to the government's supervision, although the price is cheap, the quality is reliable.