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| | How to choose a disposable protective mask (15th Feb 23 at 6:57am UTC) | | Original title: How to choose a disposable protective mask Now the air quality is more serious, more and more people begin to wear protective masks consciously when traveling to protect the health of breathing and lungs. Disposable protective masks have become the most important respiratory protective equipment because of their good filtering and protective effect, and easy to carry and store. Today, Xiao Fujun will tell you how to choose a disposable protective mask. Distinguish between protective masks and ordinary masks? First of all, it should be clear that ordinary masks have no protective effect, so what is an ordinary mask? Like Figure 1, with only one or two layers of cotton cloth, such masks can only prevent cold and have no respiratory protection effect. Why are protective masks basically disposable? Because protective masks need to filter dust and particles in the air. Such particles are generally invisible to the naked eye. Of course, cleaning is also very difficult. Therefore, protective masks are generally disposable and effective. What does a disposable protective mask look like? There are many kinds of disposable protective masks,KN95 Face Mask, but they are basically divided into medical protective masks, activated carbon protective masks and KN90-N95 protective masks. Each has its own advantages and disadvantages, so we should make appropriate choices according to our own situation. Expand the full text A. Medical protective mask: The medical mask consists of a mask body and a tightening belt, wherein the mask body is divided into an inner layer,Full Body Disposable Coverall, a middle layer and an outer layer, the inner layer is made of a skin-friendly material, the middle layer is an isolation filter layer, and the outer layer is an antibacterial layer made of a special material. The high-efficiency medical mask has the advantages of strong hydrophobicity and air permeability, remarkable filtering effect on microvirus aerosol or harmful dust, good overall filtering effect, and non-toxic and harmless materials, 3 Ply Disposable Protective Face Mask ,Virus Prevention Mask 3 Ply with Earloop, and is comfortable to wear. There are many kinds of medical masks. The common medical masks are disposable non-woven masks, gauze masks, and special effects. 1. Disposable non-woven mask, with more than three layers, can isolate bacteria and dust, and is disposable, safe and reliable, without the risk of secondary infection. 2. Gauze mask is the most commonly used type of mask. Gauze mask is widely used in the field of medical care and scientific research. 3. Anti-virus masks are mainly made of special materials with a filter layer in the middle. Generally, the filter layer is made of activated carbon felt or melt-blown cloth. It has the effect of sterilization and sterilization. B. Active carbon protective mask Activated carbon masks have a layer of activated carbon fiber more than ordinary protective masks. This layer of fiber can usually effectively block benzene, ammonia, formaldehyde, odor, stench and other harmful gases in the air to protect human health. It has stronger adsorption than ordinary masks. For harmful gases The filtering effect of liquid is 30 times that of ordinary masks. C, KN90-95-100 respirator The KN standard is a dust mask standard formulated by China on the basis of the NIOSH standard of the United States. This standard is based on the National Institutes of Health standard, which means that the filtration level of respiratory protection is above 90%. This kind of mask has become more and more common on the market and will be a mainstream respiratory protective product in the future. How to choose a disposable protective mask? For medical masks, more sensitive citizens can choose to wear disposable, general pharmacies or online stores can buy, a pack is not expensive, generally more than ten or twenty yuan. It should be noted that the sterilization grade and ordinary grade marked on the outer packaging of medical nursing masks refer to the cleanliness of the masks themselves, which has nothing to do with the filtering effect. Citizens can recognize the word "drug supervision" when choosing. The activated carbon mask is filtered by the activated carbon in the mask. It is useless to use the activated carbon several times, so it has to be replaced from time to time. Drugstores, convenience stores and online stores all sell such masks, with prices ranging from 20 to 60 yuan per pack, depending on the quality of activated carbon in the masks. Now the anti-smog mask on the market are mostly used for dust-proof masks in industrial work. The so-called N95 and N90 on the market are actually a kind of protection standard. "N" means not suitable for oily particles; "95" means that the efficiency of filtering particles with a particle size of 0.3 microns reaches 95% under the test conditions specified in the standard. If under ideal circumstances, wearing can really play a role in filtering particles and protecting them.
However,Antivirus Disposable Mask with CE Certificate, in real life, because the mask and the face are not tightly fitted, the effect is often discounted. Return to Sohu to see more Responsible Editor:. zjyuan-group.com | |
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