Do different types of protective masks work the same in dust prevention? The reference answer is no. There are many types of protective masks, and the dustproof working principle of natural protective masks is different. Protective masks can help people effectively filter out harmful dust and fine particles in the air. They are the main breath that is indispensable in industrial production today. Protective equipment. The following labor insurance net introduces the dustproof working principle of protective masks respectively through the types of protective masks. Gauze masks: Gauze masks are made of non-woven fabrics. This material does not need to be woven. It is made of some fibers. It is often made into 2-layer protective masks, 3-layer mouth layers, and multi-layer activated carbon masks. The precautionary working principle of gauze masks is that when dust passes through the gauze, it will pass through a layer of barriers, and the dust will be absorbed on the gauze, so that fresh air can enter the respiratory system. N95 protective mask: N95 protective mask is made of high-efficiency electrostatic filter cotton and meltblown non-woven fabric material to effectively filter non-oily fine particles, with a filtration rate of more than 95%. Used to provide respiratory protection. PM2.5 protective mask: The main improvement method of PM2.5 protective mask is to improve the efficiency of filtering PM2.5 through the design of the filter membrane filter material, such as the miniaturization of the spinning material and the formation of pores, so as to be effective At the same time, other novel methods have emerged to block fine particles, such as the use of electrical, magnetic, and chemical methods to absorb their sedimentation or stay away from the breathing channel. The dustproof working principle of protective masks: The protective effect of protective masks is roughly based on the three working principles of filtration, adsorption and killing. 1, filter The material and textile method of the protective mask make the gap of the protective mask smaller than the diameter of the virus. The cotton gauze protective mask that filters the virus out of ordinary materials is mainly based on this working principle and has a preventive effect, so its preventive effect is relatively low. The working principle of ordinary gauze masks is mechanical filtration, that is, when dust hits the gauze, it passes through layers of barriers to block some large particles of dust in the sand cloth. 2, adsorption The electrostatic effect of the protective mask adsorbs the virus on the outer layer of the protective mask, such as the so-called addition of an electrostatic filter layer. Activated carbon masks mostly adopt the working principle of adsorption, which is harmful to the outside world with low concentrations of harmful gases and fine particles, and achieves the dust-proof effect through adsorption. 3. The material of the anti-bacterial masks can eliminate the virus directly. The labor insurance net for this type of protective copper mask
refers to professional medical masks, which are mainly used to prevent respiratory diseases that are spread through the air, and have a good blocking effect on dust and haze. Protective masks play a two-way protection against germs and protect patients and medical staff from being infected by other germs. The above is what the editor of Labor Insurance Net provides you about the dustproof working principle of different types of protective masks. The content is introduced. I hope it will help you understand the dustproof working principle of protective masks! Generally speaking, the protection level of industrial dust masks is relatively high High, such as N95 protective masks are relatively common protective masks, which have a 95% filtering effect for fine particles with a diameter of 0.3 microns. Therefore, it is more appropriate to choose N95 protective masks in haze days. 215
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