Face Masks

Why wear a face mask?

A face mask can serve as a measure for infection control in situations where the risk of infection is increased or high.

Transmission of COVID-19 typically occurs when the virus is released from the mouth and nose of an infected person to the mucous membranes of the eyes, nose or mouth of another person. The most typical route of transmission is via a person who displays symptoms, but transmission can also occur via a person who do not display any symptoms. The most important measure to avoid transmission is to maintain good hand hygiene and stay at home and get tested if you are ill.

Children and face masks

The rule on wearing a face mask when travelling by public transport does not apply to children under 12 years.

Under no circumstances should a mask be worn by a child under the age of two years as this may prevent free breathing.

The recommendation to wear a face mask applies to the same type of situations for young people as for adults. The use of face masks is not required while at school.Young people above the age of 12 years are recommended to wear a face mask in certain situations on the same basis as adults and can wear the same size face masks as adults.

Different types of face masks and recommendations on how to use them

What types of face masks are available?

You can find both medical face masks and cloth face coverings, sometimes referred to as fabric masks.

Medical face masks are disposable and for single use only. They are produced for use in the health services and meet the requirements of current standards.

Medical face masks are designed to prevent transmission from the person wearing it onto others but will also provide a certain protection for the person wearing it. This means that wearing a face mask will first and foremost protect others from transmission if you yourself should carry the coronavirus without knowing it (asymptomatic). At the same time, you will reduce your own risk of being infected. The reduced risk in both scenarios requires the face mask to be worn correctly.

Cloth face coverings are indented for use outside of the health services. They can be home-made or factory-made, made from fabric or other washable materials. If you would like to use cloth face coverings, a cloth face covering with a documented effect of at least 70% particle filtering is recommended. See below for recommendations if you would like to make your own face mask / cloth face covering.

Research so far indicates that the efficiency of cloth face coverings is lower than for medical face masks, and that there is great variation in the effect of different cloth face coverings made from different material and with different fit.

How do I properly wear a medical face mask?

  1. Clean your hands prior to fitting the face mask.
  2. Make sure to keep the face mask tightly fitted to your face and over the nose.
  3. Tighten the face mask on either side of your nose and pull it properly down under your chin.
  4. Always keep the coloured side of the face mask facing outwards
  5. Do not wear it below your nose or chin. Do not pull it up and down.
  6. Wear your glasses on the outside of the face mask.
  7. Wear each face mask only once.
  8. Change the face mask when it is wet or moist or when you take it off in order to eat etc.
  9. Only touch the elastics/ties when you remove the face mask, if possible.
  10. The face mask should be disposed of in a regular bin immediately after use.
  11. Clean your hands after you have removed or touched the face mask.

See an illustration for correct use of face masks here (PDF, fhi.no).

How do I properly wear a cloth face covering?

  1. Clean your hands prior to fitting the cloth face covering.
  2. Make sure to keep the cloth face covering tightly fitted to your face and over the nose.
  3. Change to a clean cloth face covering when it is wet or moist or when you take it off in order to eat etc.
  4. Clean your hands after you have removed or touched the cloth face covering.
  5. Keep the used cloth face covering in a closed plastic bag until you have an opportunity to wash it.
  6. Wash the cloth face covering at 60 degrees Celsius between each time you use it.

See an illustration for correct use of a cloth face covering here (PDF, fhi.no).

Correct hygiene when using a face mask

Face masks are uncomfortable to wear. People who wear them over time will typically touch their face as well as the face mask more frequently. Avoid touching the front of your face mask and clean your hands if you do touch it. Also avoid touching the front of your face mask and then touch your eyes or face. Wash your hands after you have removed or touched the face mask.

Where can I get hold of the correct face masks?

You can buy medical face masks type I and several types of cloth face coverings at most pharmacies.

Can face masks expire and when should I change the face mask?

Face masks and cloth face coverings have a limited effect and durability and will reach an expiration date. Face masks should be changed regularly, for example when the mask is wet, moist or dirty or when you take it off in order to eat.

Medical face masks are disposable and intended for single use only. Once you have removed the face mask you should not put it back on. It should be disposed of in a bin after use.

Cloth face coverings should not be reworn until they have been washed. They can be washed with other laundry at 60°C or higher.

Can I eat or drink while wearing a face mask? What if I place it under my chin or leave it hanging by one ear?

No. If you are going to eat or drink you will need to remove the face mask, wash your hands and then fit another face mask or clean cloth face covering.

Do all face masks offer equal protection?

No. Research so far indicates that the efficiency of different types of face masks when it comes to degree of filtering and protection differs. The efficiency will vary with different types of material, production conditions and how well the mask is shaped and fitted. It is important to keep good hand hygiene prior to putting on a face mask, after removing it as well as when you have touched the face mask.

Can I have guests visiting or go to the store while I am ill with symptoms of a respiratory infection if I wear a face mask?

No, if you are ill with symptoms of a respiratory infection you should stay at home and take a COVID-19 test. You should not entertain guests and avoid close contact with others. If you have no other option, you can go grocery shopping while taking extra care to maintain good hand hygiene, keep a distance to others, and wear a face mask.

If you are in isolation due to suspected or confirmed COVID-19, you should not go shopping, not even if you are wearing a face mask.

To what extent will a face mask offer protection relative to keeping a 1 metre distance to others?

The documentation on the effect of face masks for the protection against a respiratory infection is ambiguous and points to different conclusions. The overall assessment is that public use of face masks / cloth face coverings can reduce the risk of transmission by approximately 40%. The effect will vary with the quality of the face masks / cloth face coverings and whether the masks are worn correctly. The risk of infection when we keep a distance of at least one metre to others is reduced by approximately 80%. Hence the risk of transmission could increase if we wear a face mask instead of keeping a distance to others.

Are there some adults who cannot wear a face mask?

For medical or other reasons some people might not be able to wear a face mask. Be tolerant about face mask use - both for those who do use them and those who cannot.

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Beagle Face Mask
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