Since the winter, flood prevention masks have become a necessity for some citizens. At present, there are many kinds of anti-mite masks and the quality of products is uneven. There are a large number of products marked with “fog-proof masks†and “PM2.5 protective masksâ€. The relevant department reminded consumers to be cautious when choosing anti-mite masks, not just to see if the appearance is beautiful. Recently, in the quality and safety sampling of flood prevention masks organized by the Shandong Provincial Bureau of Quality Supervision, nine out of the 20 samples purchased by the staff from the market failed to meet the relevant requirements, and the rate of failure was 35.3%. What should consumers pay attention to when choosing a mask? According to the person in charge of the Scientific Research Center of the Shandong Provincial Quality Inspection Institute, a truly effective flood control mask should conform to the national standards, and special attention should be paid to the standard number and the level of the product's protective effect on the product marking. The protective effect reflects the barrier capability of the mask product to the particulate matter in the practical use process, in particular, the barrier capability of the mask at the gap between the facial surface and the human face. According to experts, there is a simple method for determining whether the mask protection effect is up to standard: After wearing a mask, if people wear fog masks, they can basically be judged as poor protection. At present, there are mainly disposable anti-mite masks and dual-type anti-mite masks on the market, and the cost performance is quite similar. Engineers of the Shandong Provincial Institute of Quality Research and Research Center reminded that the protective ability of PM2.5 masks is significantly affected by the material of the mask body. In particular, masks made of knitted fabrics as the mask material are difficult to meet the actual requirements for the filtering efficiency and protective effect indicators. , It is recommended that consumers try to buy non-woven or silicone masks. However, the higher the degree of decontamination of the snoring mask is, the stronger the barrier capability of the filter to particulate matter is, which easily causes breathing difficulties. For children who are in developmental stages, casually wearing adult snoring masks may cause breathing difficulties and allergic reactions. Cordless Stacked Cellular Shades Cordless Power Window Shades,Cordless Honeycomb Cellular Shades,Automated Honeycomb Blind,Motorization Cellular Shades Shenzhen Yuaneng Industrial Co.,Ltd , https://www.bi-colour.com