• Katie Grasso

The Fogging Effect


Whether you wear prescription glasses, safety glasses, or sunglasses, I’m sure you’ve experienced your glasses fogging up while wearing a face covering.  As we all adapt to the new normal of wearing face coverings when out in public, dealing with the frustration of fogged glasses is definitely a reality.  


When wearing a face covering, you repeatedly exhale warm air. When exhaling, air is directed upwards and escapes from the top of your face covering. This leads to warm water vapors landing on the cooler lenses of your eyewear, causing your glasses to fog and making it difficult to see.


To help minimize the fogging effect, consider these tips and tricks:


Eyewear Solutions

By applying one of the antifogging methods below, a clear residue will be left on your lenses. This film will help protect your glasses from the change in temperature, preventing your glasses from fogging.

1) Apply manufactured antifogging wipes or sprays 

  • Antifogging wipes and sprays can easily be found online and applied to your glasses. Reapplication of wipes and spray is needed to maintain fog free glasses. Examples include, but are not limited to: Foggies Anti-Fog Cleaning Towelette Wipes for Goggles, Glasses and Masks and TYR Anti Fog spray.

2) Apply DIY antifogging solutions – home remedies

  • Shaving cream – dab a small amount of shaving cream onto the inside and outside of your glasses and wipe the foam over your lenses. Let the lenses dry before gently buffing off excess shaving cream with a soft cloth. You should be left with a clear layer over your glasses. This film will help protect your glasses from the change in temperature, preventing your glasses from fogging. Reapplication is required but studies have shown that this method lasts longer then manufactured antifogging solutions.

  • Dish soap – apply a small drop of dish soap to the inside and outside of your lenses and rub the soap over your lenses until clear. Let the lenses dry before gently buffing glasses clean with a soft cloth. Reapplication is required as necessary. 

  • Bar soap – break a small piece of soap off of the bar and rub the soap piece over the inside and outside of your lenses. Let your glasses sit for 5-10 minutes before buffing glasses clean with a soft cloth. Reapplication is required as necessary.    

  • Baby shampoo – in a small spray bottle mix a solution of baby shampoo and water (25% shampoo 75% water). Spray the inside and outside of your lenses and let dry for 3-5 minutes before gently buffing your glasses with a soft cloth. Reapplication is required as necessary.    

3) Utilize glasses with manufactured antifogging lenses 

  • Eyewear can be purchased with lenses that are manufactured to prevent fogging. If you are due for a new pair of glasses, this could be a potential option.

Face Covering Solutions

4) Face covering style – Face coverings with a moldable nose piece or ones that fit flush with your cheeks are best for minimizing fogging, as this minimizes the amount of hot air escaping and landing on the cooler lenses of your glasses.

5) DIY face coverings – If your face covering isn’t already equipped with a moldable nose piece, consider modifying your face covering by sewing one in. For example, you can use items such a paper clips, pipe cleaners, twist ties or even cutting out the metal from a disposable mask and sewing it into your cloth face covering. 

6) Breathing technique – While exhaling when wearing a face covering, practice breathing with your upper lip over your lower lip. Doing this you can direct your air flow downward instead of up, which lowers the risk of fogging up your glasses.


We hope this information is useful and helpful in minimizing the impact of fogging lenses. If you have any further questions, please don’t hesitate to reach out to Katie Grasso, CSP at kgrasso@capaccio.com.

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