How To Keep Your Face Mask From Fogging Up Your Glasses

This should clear things up.

Marty Munson |

Now that it is mandatory for South Africans to wear cloth face masks as soon as they leave their front door, people are getting creative with the way they’re covering their faces to avoid the spread of the novel coronavirus and COVID-19.

Related: Can You Make Running With A Mask More Comfortable? The Experts Weigh In

While some DIY-ers are making fancy, sewn versions, numerous sources are offering no-sew options; from fashioning a cloth face mask out of the bottom of a T-shirt (see the tutorial on Facebook here) to making one out of cloth and rubber bands.


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But that doesn’t solve a big problem for eyeglass wearers: How to keep your glasses from fogging up when you have the mask on. When the warm vapour from your breath contacts the cooler surface of the lens, fog forms due to the surface tension between water molecules.

Related: Everything You Need To Know About Wearing A Cloth Mask

Here’s what helps keep the fog away:

Use a Tissue

The Tokyo Metropolitan Police Department recommends folding up a facial tissue and placing it inside the top half of the mask. That creates some extra absorbency between your nose, which is creating the moisture, and your glasses, which are all too happy to show it. The Police Department diagram also suggests folding the top quarter of the mask inward for that extra layer.

Related: How To Take Care Of Your Skin During Lockdown

Leave Some Soap on Your Glasses

piece published in the journal Annals of The Royal College of Surgeons of England recommends taming the fog problem by washing your glasses with soapy water and shaking off the excess—don’t rinse them. Best to let them air dry, but the paper suggests you can also “gently dry off the lenses with a soft tissue before putting them back on.” The soap leaves a film behind that reduces the surface tension of the molecules. Swimmers do this all the time—they use a little bit of baby shampoo inside the goggles to prevent fogging there. You’ll probably want to do some experimenting to see how much of which type of soap works for you.

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