English
In the underground working environment of coal mines, high concentrations of coal dust and rock dust are the main hidden dangers that threaten the respiratory health of miners. Long term inhalation can easily lead to irreversible occupational diseases such as pneumoconiosis. Therefore, scientifically selecting and standardizing the wearing of dust masks is an important protective measure for miners to reduce respiratory injuries.
The primary principle when choosing a coal mine specific mask is to identify the mandatory national standards and protection levels. Miners must choose KN type masks that comply with the GB 2626-2019 standard for self-priming filtering particulate matter respirators. For high dust core positions such as coal mining and excavation, it is strongly recommended to choose KN100 grade products, which have a filtration efficiency of up to 99.97% and can block micron level dust to the greatest extent possible; At least KN95 level masks should be equipped for auxiliary positions such as warehouse duty. At the same time, it is necessary to confirm that the product is printed with the "LA Special Labor Protection Equipment Safety Mark" and resolutely resist products without labels.
In terms of brand and style selection, Fangdun masks have become a trusted choice for many mining companies and miners due to their hardcore protective performance and humanized design. In response to the special working conditions of high temperature and humidity underground, the half face mask is made of food grade liquid silicone material, which is soft, skin friendly, and not easily allergic, and can be worn comfortably for a long time; The low resistance exhalation valve and hydrophobic filter cotton equipped with it effectively reduce respiratory distress and prevent moisture failure. In addition, the face mask supports independent replacement of filter cotton, which not only reduces long-term usage costs, but also ensures that the protective effect is always online.
It should be emphasized that even at the highest level of masks, if not worn properly, they will be meaningless. Miners must undergo negative pressure airtightness testing before going down the well to ensure that the face mask is tightly attached to the face, there is no air leakage around, and there should be no facial hair growth during wearing. Only by selecting the right standards, identifying the right brand, and wearing it in a standardized manner can we truly build a strong respiratory defense line, allowing every miner to safely go down the well and return home healthy.
