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Dust masks should be known to all, literally mainly to prevent dust from being absorbed into the human body, affecting people's health. However, many users often have some misunderstandings when using dust-proof masks, so what are the misunderstandings? Here is a brief introduction of disposable masks for the majority of users, hoping to help you.
Is the thicker the filter cotton of the dust mask, the better the protection effect? No The filtering efficiency of filter cotton can not be judged by its appearance. Many filter cotton is thin and light, but its filtering efficiency is very high. Some masks, such as some gauze masks, are very thick, but their dust-proof effect is not ideal.
Can the dust mask be cleaned? No. Do not clean the filter material of the respirator at any time. Protective masks are new when purchased, and the masks after each cleaning are not re-tested, so the protective performance of the cleaned masks is not guaranteed.
Is the dust mask suitable for any concentration of dust environment? No In GB/T 18664-2002 "Selection, Use and Maintenance of Respiratory Protective Goods", it is clearly stipulated that the dust concentration of dust-proof half mask should not exceed 10 times of the national occupational health standard, and the dust concentration of dust-proof full mask should not exceed 100 times of the occupational health standard.
