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New CDC recommendations endorse using face masks when in public to help combat Covid-19. As most outlets no longer have inventory of official face mask products, many designs have circulated for DIY versions that you can sew at home. Those needing something quicker (or lacking a sewing machine) have used t-shirts, scarves, and bandanas - shown to be less effective than an N95-rated product, but still much more useful than nothing at all. Now a new bandana-folding technique is circulating that shows how to whip up a quick mouth-and-nose cover using your favorite rag and two elastic ponytail holders (you could also use rubber bands or shoe laces to hold it in place). I like this style better than the cowboy-bandit tied-in-back approach for a couple reasons: It holds pressure against my mouth and chin better, leaving less potential leakage from happening. And it slips less - the ear bands hold it in place better than a tied knot that constantly slips down toward my neck. Here`s how to make it.

The biggest feature of the KN95 mask is that it can prevent the spread of droplets caused by patients' body fluids or blood splashes. The size of the droplets is 1 to 5 microns in diameter. 3M medical protective masks are divided into domestic and imported. They have the protective performance of medical surgical masks and particulate protective masks. They are special for hospitals. They can filter particulates in the air and block droplets, blood, body fluids and secretions. .

The mask you choose for your baby must be soft and not too thick. Because the baby is young, too thick masks can not only ensure that the baby has a good breathing environment, but may affect the baby's breathing status. It is usually made of soft and comfortable cotton material. Don't choose masks that are too beautiful and brightly colored. We often see that there are very beautiful cartoon masks on the market, this kind of mask baby also likes it. However, these dyes are all chemical products. Intimate contact with the baby's skin and respiratory tract may affect the baby's health. Masks of the right size, some parents always like to choose larger clothes and pants for their children, so that as the baby grows, these things can continue to be used. But the mask can't be like this. If the mask is too big, not only can't achieve the effect, but also the edge of the mask can contact the eyes around for a long time, which may cause diseases such as keratitis. The masks used by babies need to be cleaned frequently and dried in the sun. This can reduce the growth of bacteria in the mask and ensure that the baby has a good hygienic condition. The baby's mask can be used both positively and negatively, because the baby is much more delicate than adults. If the mask worn on the outside touches the baby's skin, the bacteria and viruses remaining on it will directly invade the baby's body, but instead make the baby's physique. decline. Babies should not wear masks for a long time, and children do not like to wear masks. If you let them wear masks for a long time, they may cry and stop crying, which will not achieve the effect of prevention.

Cloth masks cannot protect against viruses, especially new coronaviruses. Generally, cloth masks have good breathability, warmth, and elasticity. Their textures are light and soft, so they are comfortable to wear, and the surface patterns are rich in color. Most of them are used for wind and heat preservation. Whether the mask can be anti-virus is mainly due to its filter material. The cloth mask is mainly made of cotton or chemical fiber fabric. It has a certain function of warmth and windproof, basically does not have the function of adsorbing bacteria and preventing dust. Its structure has a poor adhesion to the human face. Many fine particles that are extremely harmful to the human body will enter the respiratory tract to the lungs through the gap between the mask and the face. Its filter material is usually some mechanical fabric. This filter material The only way to achieve high dust suppression efficiency is to increase the thickness, and the negative effect of increasing the thickness is to make the user feel that the breathing resistance is very large, making people feel uncomfortable. It can be seen that cloth masks cannot isolate coronavirus. Therefore, during the epidemic of new coronavirus pneumonia, you should choose your mask carefully. In addition to the type, the size of the mask must also be appropriate, and the wearing method should also be correct, so that the role of the mask is effective. At present, it is clinically recommended that you choose a mask of N95 or similar protection level or above for the prevention of new coronavirus pneumonia. During the use, you must pay attention to the replacement of the mask. If you encounter contamination and the user feels that the respiratory resistance has become larger, or the mask In case of damage, etc., they should be replaced in time.

How to use the medical mask: (1) The darker color of the mask is the front, and the front should face outward, and there are metal clips on the medical mask. (2) The face that is facing the face should be the reverse side of the medical mask, that is, the lighter side. In addition, the part with the metal strip should be above the mask, and don't wear it backwards. (3) After clearly distinguishing the front, back, upper and lower sides of the mask, wash your hands and hang the ropes at both ends on your ears. (4) Finally, squeeze the metal strips on both sides of the bridge of the nose so that the upper end of the mask is close to the bridge of the nose, and then stretch the mask down to cover the nose and mouth.

How to choose a mask Choose a disposable medical mask when you go out normally, replace it for 4 hours, and replace it immediately after pollution or moisture. You can choose to use N95 medical protective masks when going to the hospital or in crowded areas. You can wear them for 4 hours and replace them immediately. If they are contaminated or wet, replace them immediately. Cotton masks and sponge masks are not recommended.

1. N95 type mask. N95 type mask is one of 9 kinds of anti-particulate masks certified by NIOSH. It can effectively filter out most harmful substances. 2. Medical surgical masks. It is generally used in high-demand environments such as medical clinics, laboratories, and operating rooms, and is a common type of medical personnel. 3. PM2.5 mask. It is mainly used as a mask to filter pm2.5 particles, especially for smog. 4. Activated carbon mask. Mainly used in industry, such as newly renovated office buildings, where there are a lot of toxic gases such as formaldehyde and benzene. 5. Gauze mask. This is also a more professional mask, mainly used in the working environment with low concentration of harmful gases and some harmful steam. 6. Anti-virus mask. It may also be used in situations where it is exposed to toxic gases and toxic dust, and in some emergency situations. 7. Dust mask. For the working environment with heavy dust, it also has different filter materials and performances to target different working environments.