How to wear a medical mask so that your glasses don't fog up
The medical mask has a significant drawback — it is hot. The warm air that you exhale lingers and creates a feeling of discomfort, and in the case of glasses, it also causes the lenses to fog up. You have to constantly wipe them and correct them, and touching your face with your hands is extremely undesirable.
To address this problem, the Tokyo Metropolitan Police Department issued recommendations for wearing a medical mask. There are several ways to prevent glasses from fogging up.
First, bend the edge of the mask inward before putting it on.
The second method is to apply a little cloth to the mask in the place where it comes into contact with the nose.
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When you put on your glasses, make sure that they are placed on top of the mask, and not Vice versa.
So the exhaled warm air will be held by the edge of the mask or a padded cloth, and the glasses will not fog up.
There is another option for those who wear self-made masks. Designer Dan Formosa recommends sewing a piece of wire or paper clip into the mask. Then bend it so that it completely follows the shape of your nose. This way the mask will fit more tightly, and you will stop breathing warm air on your glasses.
Another simple solution was published in the journal of the Royal College of Surgeons of England. Wash your glasses in soapy water before putting them on with the mask. Soap will create a thin invisible film on the surface of the lenses, preventing condensation of steam.
And finally, you can just buy an anti-fog spray.