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Pay attention to these three points when using dust masks

by:Copper Plus     2021-05-29
Recently, dust masks have become popular all over the country, and the best personal protective equipment for smog days is dust masks. What's more, you can directly show the dust masks or gas masks worn by chemical companies to the public. For dust masks, you must first understand three things: the environment in which the dust masks are used, the choice of masks, and the way to wear them. It is not that wearing a is foolproof. There are many types of masks. You must first understand the use environment and operation requirements of the , and then choose the corresponding choice. Finally, you need to master the correct way to wear the to better use it .  Use environment of dust masks  First of all, you should understand the concentration and toxicity of dust in the environment. According to GB/T18664 'Selection, Use and Maintenance of Respiratory Protective EquipmentHigher air respirator.   If the particulate matter is highly toxic, carcinogenic and radioactive, the filter material with the highest filtering efficiency should be selected. In addition, it is necessary to confirm whether the particulate matter is oily or non-oily. Since dust masks cannot be washed with water, masks with microfibrils on the face can easily cause facial irritation on the sealing part of the face, and are not suitable for use.   For high temperature and high humidity environments, it will be more comfortable to choose a mask with an exhalation valve. Choosing a copper mask that can remove ozone for welding can provide additional protection. For environments where there are no particles but only some peculiar smells, choosing a with an activated carbon layer is lighter than wearing a gas mask, and the price is much lower than that of a gas copper mask, which is more suitable for certain laboratory environments.  Dust respirator selection    Whether dust respirators really play a protective role, in addition to choosing the protective function, another important selection factor is suitability. No has an appearance design that can fit everyone's face shape. At present, the certification and testing of dust masks does not guarantee that the mask is suitable for each specific user. If there is a leak, the pollutants in the air will enter the breathing area from the leak. The method of choosing a suitable is to use the suitability test. The test method is very simple. After wearing the mask in the correct way, you can still feel the smell (such as car exhaust, oil smoke, etc.), indicating that the and the user’s face The fit is poor. For details, please refer to the introduction of the suitability test of dust respirators in GB/T18664.  The correct way to wear it  Dust masks may seem simple, but they are not. After choosing a suitable , you must also master the correct wearing method and precautions for use. Dust masks are divided into three types: headband, ear-worn and neckband according to the way they are worn. Different dust masks have different ways of wearing them. In addition, every time you wear a , you must check the airtightness of the to ensure that the position of the copper mask is correct (not leaking), the headband is tight and so on.  The dust concentration in the environment, the filter material of the and the maintenance method will directly affect the service life of the mask. There is no uniform replacement time for the . When it is found that the parts of the are damaged or broken (such as nose clip, nose clip pad), and the breathing resistance is obviously increased, the should be discarded immediately and replaced with a new one.  To sum up, consumers cannot blindly pursue the price of dust masks when buying, not that the more expensive masks have better protection performance. As far as possible, choose dust-proof masks with formal packaging and LA (Labor Protection) logo or both LA and QS logos on the packaging. At the same time, the filter materials of dust masks generally have undergone a very complicated process. They are maintenance-free products and should not be reused after washing. 292
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