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Does N95 protect against coronavirus?

Alexander Alexeenko - 23.03.20

Concerning the appearance of new 2019-nCoV coronavirus, in pharmacies around the world, the demand for disposable masks has grown sharply, people who can be increasingly seen on the street and in vehicles. At the same time, no authoritative medical organization in the world gave official recommendations to wear a mask to protect against infection. Let's see what masks actually protect against and how to prevent infection.


1.N95 protects again coronavirus?

Particles of the virus are microscopic and can penetrate through the pores in a conventional surgical mask, and around where it does not fit snugly on the face. There are more reliable respirator masks, the so-called N95 - this means that they filter out 95% of particles of 0.3 microns or more in size from the air. The average size of the coronavirus is a little more than 0.1 microns, so theoretically it can penetrate through the N95 mask. We also note that these masks are more expensive, not suitable for children or people with a beard and mustache, and in the USA they are generally considered medical devices, so it may not be so easy to buy them.

Even a simple surgical mask is able to delay the spread of droplets of saliva from the person who put it on - therefore, it is believed that it is needed first of all for the sick, and not healthy. In this case, the main rule must be observed: do not touch the mask and everything under it. The ideal case is as follows: a person with ARVI is at home whenever possible, and if you need to go to a pharmacy or a store, put on a mask, make purchases without touching the face, take off the mask at home, throw it out and wash your hands thoroughly.

2. N95 model 8511 mask against coronavirus

Product description:
The N95 8511 coronavirus mask is soft and breathable, providing you with reliable protection against breathing, as well as satisfying your needs for comfortable work.

The respirator n95 8511 coronavirus provides protection against certain solid and liquid particles that does not contain oil. Provides a minimum filtration efficiency of 95%. Meets NIOSH 42 CFR 84 N95 requirements (TC-84A-1299). The innovative “M” nose clip helps ensure a snug fit and reliable seal against the face. Comes with an exhalation valve to reduce heat and humidity inside the respirator. Highly efficient electrostatic filter media provides low breathing resistance. The inner layer is soft and smooth. Elastic Headband guarantees good elasticity and stable wearing. Suitable for grinding, grinding, sweeping, sawing, bagging and other dusty operations.

Specification of N95 8511 coronavirus mask:
Brand Name: 3m
Model Number: 8511
White color
Quantity: 1 pcs / bag, 10 pcs / box (optionally)
Product Size: Approx. 141 * 135 mm


In some cases, masks are really used for bilateral protection - for example, it is important for the surgeon not only to prevent their own cells and fluids from entering the wound, but also to protect their nose, mouth and eyes from the patient’s blood. Dentists need glasses and masks so that not only microbes from plaque, but also mechanical particles do not get into the face. The same applies to manicure masters - when processing nails, solid fragments fly around.

Respiratory viruses die quickly in the air and are transmitted by close contact. A healthy person who is not in the immediate vicinity of the source of infection does not need a mask. It can come in handy if you are visiting someone in a hospital or working there. In close public transport, if you can’t get away from a sneezing or coughing person, you can wear a mask (at least to calm yourself) - the main thing is not to touch it until it is time to remove and throw it away, and then wash your hands properly.

Healthy person not located in close proximity from the source of infection, mask need not. In principle, all this applies to any viruses that cause diseases of the respiratory system. Like the causative agent of influenza, the new coronavirus is especially dangerous for weakened people, the elderly, for people with confirmed immunodeficiency — and if you have such a diagnosis, then you definitely know about it and take special precautions.

In Australia, it is recommended to wear N95 8511 against coronavirus mask and consult a doctor for those who have returned from China over the past two weeks and have noticed symptoms of the common cold, as well as medical staff working with such patients. American CDC recommends that paramedics wear N95 8511 mask against coronavirus and safety glasses when entering a room with people with a suspected or confirmed infection, and take them off and throw them away.

To protect yourself from infection (not just a new coronavirus), you need to remember the simple rules and follow them: do not panic, often and properly (for at least twenty seconds) wash your hands with warm water and soap, and if this is not possible, use an alcohol sanitizer Do not touch eyes, nose and mouth. It is useful to regularly wipe work surfaces and not touch common objects such as a doorknob in a public toilet or a microwave button in an office kitchen with your bare hands. If someone sneezes or coughs, try to step back a couple of steps.

Also, in the near future, you should refrain from traveling to China, and if you have been there recently and have shortness of breath, a fever or a cough, you should seek medical help as soon as possible. Stock up on disposable handkerchiefs for coughing and sneezing (in extreme cases, sneeze on the elbow, but not on the palm). If you get sick, do not go to work or study - recover faster, and at the same time take care of others.

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