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New equipment for war epidemic: silicone mask for "long standby"! TWO

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           Since late March, I believe that many people, like editors, have seen the number of newly diagnosed new crowns in the world increase every day, see the high-pressure anti-epidemic frontline medical staff on the Internet, and see countless Of help patients, seeing that many medical staff in countries with severe epidemics can only use an ordinary medical protective mask for a week and feel worried and sympathetic.

          At present, all kinds of anti-virus products in foreign countries are out of stock. Everyone knows that the new crown virus is basically caused by the infection of the droplet air, so the mask is a key protective equipment for everyone. Most of the masks in European and American countries in the severely affected areas have to be imported from China, and any kind of masks consumes huge amounts. So, is there such a mask that can be recycled?

       Previously, many domestic enterprises produced medical protective masks "cross-border". So far, the domestic daily output of masks can reach 200 million, and the domestic supply and demand are basically balanced. At present, many masks have been exported or donated to countries with severe epidemics around the world. As early as the beginning of the year, there were a number of rubber companies in China that were actively producing new masks—silicone masks!

     Silicone masks have been developed for anti-virus and anti-fog in the early years, and the choice of silicone masks has a relatively long service life and is soft and comfortable. Wear for a long time, not easy to cause allergic reactions. However, the silicone material also has different degrees of hardness. Masks with high hardness are easy to cause facial indentation, while low hardness may not be worn firmly, and air leakage is easy to occur.

      However, if the filter part of the silicone mask does not achieve multi-layer filtration at the same time, filter cotton is used, such as synthetic fiber filter cotton, non-woven filter cotton, glass fiber filter cotton, activated carbon filter cotton, etc., one or more filter cotton, Using one or more layers of filter cotton for air filtration, in an effort to prevent the new coronavirus from invading the human body, the actual effect is far from the same, so whether it is a silicone mask or an ordinary mask, the important issue is the middle filter.

      At present, most of the production methods of silicone masks are mainly made of filter materials, filter channels, exhaust valves, silicone face seals, and face seals are made of silicone material to prevent harmful gas from leaking into the mask. The advantage of the silicone rubber mask is that its fitting surface is silicone. The silicone products have good flexibility and are much more comfortable to wear, and will not make the face mark. The specially designed silicone masks can be used repeatedly and have a long life. Just replace the middle part of the filter core and filter cotton. During the epidemic, the use of personal areas is completely okay, but care should be taken for severely infected areas.

    In general, the silicone masks are made of food-grade environmentally friendly silicone materials that are similar to baby pacifiers and children's tooth gel materials. They are soft and comfortable, and they are not harmful to the skin. After use, the silicone parts can be removed and sterilized for repeated use. Breeding bacteria, in principle, a silicone mask can be used for 7-14 days, truly "super long standby"!

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