Near half dust mask failed

Since the beginning of this year, the urban air smog has become more and more serious, and various types of masks have continued to sell well. Many businesses have promoted the effectiveness of their products and made consumers unable to discern. Recently, the Shanghai Consumer Rights Protection Committee conducted comparative tests on mask products sold on the market. Among 17 samples, some of the samples did not match the performance.
Filter efficiency is a key indicator of the basic performance of masks, that is, the mask can filter out the percentage of particles under the specified detection conditions. After inspection, there are seven samples with a filtration efficiency of more than 90% and a good filtration effect, but there are also eight samples below 50%. Among them, a child-type mask with a nominal price of 2.6 yuan labeled as VIP brand only has filtration efficiency. It is 6.5% and the filtering effect is poor.
Leakage rate is another criterion for judging the quality of mask products. In this test, two samples were too small to be tested. The remaining 15 samples contained 5 samples with a total leakage rate of less than 10%. The protective performance was good, and 6 samples were greater than 50%.
The product identification can reflect the basic information of the product, help the user to understand the various information of the product, and avoid the wrong selection and use. In this experiment, 11 samples were found to be missing, and there were no Chinese information on the two sample packages labeled “Tian Pride” and “MASkin”, which belonged to the “Three Nothing” products.
Try to buy masks that are packaged and have “LA” (Labor Protection) logo on the packaging or “LA” and “QS” logos. At the same time, at the time of purchase, it is necessary to pay attention to the identification of the product and check whether the product name, production date, factory name, site, shelf life, and product instruction manual are clearly marked. In terms of product use, because people's faces are different, a mask designed is not suitable for everyone. Some people wear tight fitting, and some people may not be able to close together. Therefore, before using a certain type of mask for the first time, it is best to refer to The instructions first try on. Even considering factors such as the use environment, product characteristics, etc., the product may be less efficient or even ineffective because it is not suitable for the user.

China Labor Insurance Network