In daily life, masks can actually be said to be widely used, but we all know that there are different types of masks, so of course everyone should know the most about the selection method and skills of masks. Then you should pay attention to what kind of mask is better? Let us analyze and introduce it in detail below. The types of masks are as follows, the best of which are N95 masks and bamboo charcoal masks Paper masks: mostly used in the food processing industry to ensure cleanliness and hygiene in the production process, but they have no filtering function, are easily wet and broken, and are not durable. Absorbent cotton gauze mask: Commonly used masks are generally made of absorbent cotton gauze folded into several layers and then sewn together. Some are also made of non-woven fabrics. Generally speaking, a 3-layer gauze mask can only block 70%-80% of bacteria, while a 6-layer gauze mask can block more than 90% of bacteria. Usually, a 6- to 8-layer gauze mask does not feel too stuffy when worn. Since the SARS virus is mainly transmitted through close contact and droplets and is highly toxic, it is generally recommended to use a 12-layer to 16-layer gauze mask. Three-layer surgical mask: The middle layer of filter can block particles larger than 5 microns (one millionth of a meter), has good ventilation, is comfortable to wear, and is easy to use. It comes in ear-hook type and strap type. Activated carbon mask: a functional mask specially designed for virus protection, with good disinfection, sterilization, deodorization and dust prevention functions. The built-in wire bends according to the face shape, effectively closing the gaps on both sides of the nose and creating a good breathing space for the mouth and nose. N95 mask: It complies with the N95 certification of the National Institute for Occupational Safety and Health (NIOSH) and can filter particles as small as 0.3 microns in diameter. Tests show that it can block 95% of particles with a diameter of 0.075 microns (the diameter of the coronavirus is about 0.1-0.12 microns). Three-dimensional mask: The mask bulges forward, leaving enough space for the mouth and nose, protecting the mouth, nose and lips without any pressure. It feels comfortable to wear and is convenient to talk to people while wearing the mask. Bamboo charcoal mask: Bamboo charcoal mask, with small charcoal particles made from bamboo burned at ultra-high temperatures sandwiched in the mask, fully utilizing the dehumidification and super adsorption effects of bamboo charcoal. The negative ions produced can purify the air and filter out harmful substances and germs. Bamboo charcoal masks are popular overseas. The above is about the choice of masks and common sense. Through the recognition and understanding of these common sense, we can achieve better results for our health by using masks correctly. We also hope that after understanding these common sense, everyone can use masks correctly in life. |
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