Dr. Peter Markov, a pediatric dentist in Arlington has been wearing facemasks for his entire career. “I wear loupes daily in dentistry and one of my biggest annoyances was that they would fog up. Fortunately, it’s an easy solution.”
Fogging occurs when the warm water vapor from breathing travels upwards and condenses on the cooler surfaces of the glasses. Fortunately, there are ways to fix it. The first is to wash your glasses with warm, soapy water immediately before wearing your mask. This will create a surfactant film that reduces the surface tension.
Another solution is to create a better seal. This can be done with a strip of tape across the brow of your nose, taping the mask down, using a tissue in between the mask and your nose, or using a mask that can form to your nose — one with a wire, for example.