Combating Fog

Now more than ever, more people are experiencing the nuisance that has plagued some for too long - having your loupes, face shield or glasses fog up because you're wearing a face mask. Let's look at what causes this to happen and then we'll cover some ways to mitigate it.
What causes "fogging up"?
It really all comes down to temperature. The problem is your breath - unless you keep your office thermostat set at 98° (is that even possible? Ha!), your equipment is going to be a lower temperature than your breath. When your warm breath hits the cooler surface (lenses or shield), it causes it to condense which creates "fog" on it.Unfortunately, there isn't really any way to lower the temperature of your breath. However, there are some measures you can take to combat your breath hitting your equipment and clouding your vision.
How do I stop my Loupes, face shield or glasses from fogging up?
There are a few ways to help mitigate this.3. Increase the air flow in and around your equipment.
If there is nowhere for the warm breath to go then it will most likely fog up your equipment. Ensuring there is a decent flow of air on and around your face will help mitigate this fogging issue. If you're using a face shield that would prevent that, cutting some small holes in the top would improve the air flow and reduce fogging.
If you have any other methods you use to combat your equipment fogging up, let us know in the comments!