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What are the precautions during the use of protective masks

Update:13-05-2021
Summary:

Question: The suitability of anti-particulate masks Ans […]

Question: The suitability of anti-particulate masks
Answer: The best dust mask is not to see whether the mask is really protective. Another important selection factor is suitability. There is no one-size-fits-all design that can fit all face shapes. The current certification and testing of anti-particulate masks does not guarantee that the mask is suitable for each specific user. If there is a leak, air pollutants will enter the breathing area from the leak, so unsuitable masks cannot provide effective protection.
Question: Can ordinary gauze masks effectively protect against dust particles in the air?
Answer: Using gauze masks as anti-particulate masks is the biggest misunderstanding of using anti-particulate masks. Gauze masks are not protective masks. As early as 2000, the government banned the use of gauze masks as dust prevention in the workplace. The two most critical technical indicators of protective masks are the filtration efficiency and the ability of the mask to isolate polluted air. The gauze mask not only has low filtration efficiency, but also has obvious leakage. Use the suitability test method of the respirator mask to detect it, everyone You can realize this right away.


Question: What are the activated carbon masks used for?
Answer: Adding a thin layer of activated carbon or other gas-absorbing materials to the particulate protective mask can reduce some low-concentration gas with unpleasant smell, that is, reduce the peculiar smell. Such as: the smell of putrefactive substances (mainly organic substances). When the concentration of odorous gas is so high that it is harmful to your health, you need to use a gas mask.
Q: Can the dust mask be cleaned?
Answer: No matter whether it is anti-virus or dust-proof, any filter element should not be washed with water, otherwise it will damage the filter element. Anti-particulate masks cannot be cleaned.

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