Some myths about mask use

One, gauze mask can be used to prevent dust, and wear comfort

Dust respirator belongs to special labor protection articles, the country has special standard requirement to its quality. As early as in 2000, the former state economic and trade commission explicitly stipulated that gauze masks should not be used as dustproof masks, because gauze masks on the human body harm * * of five micron dust, dust resistance efficiency is only about 10 percent, the result is spent money, failed to prevent the role of dust hazards.

Second, non-woven dust respirator can be cleaned before use, can save costs

The common dust respirator on the market, its filter material is melt-sprayed non-woven material, the material is mostly polypropylene, commonly known as PP melt-sprayed cloth, is a kind of ultra-fine electrostatic fiber cloth, can capture dust. After the dust is captured by the ultra-fine electrostatic fiber cloth, it is very difficult to get rid of because of cleaning, and washing will also be destroyed by the electrostatic cleaning capacity, therefore, the non-woven cloth mask is not to be cleaned, after use will need to be discarded. In order to save costs, some enterprises require employees to use masks for a period of time after cleaning the use of secondary, some mask manufacturers also developed a layer of traditional gauze masks in the middle of the so-called "efficient cleaning" non-woven dust mask, is wrong and dangerous behavior.

Three, as long as wearing a dust mask will not get pneumoconiosis

First of all, the dust mask has a certain volume of filtration, more than its filtration capacity, can not prevent dust. Therefore, for some places with high dust concentration, engineering transformation should be carried out to control dust, to reduce the dust concentration to the allowable concentration, and then consider wearing a dust mask.

Next, dustproof mask is not worn correctly also cannot dustproof. This not only includes wearing the mask in accordance with the operating instructions to ensure the correct and appropriate position (no leakage) for each wear, but also must persist in wearing the mask during dust collection operations, timely detect signs of mask failure, timely replacement.

This article comes from the network, copyright to the original author all, if there is infringement, please inform to delete.