As a glasses wearer, I’ve always struggled with my glasses misting or fogging up on cold days. Whereas as my visor stays clear through the use of a Pinlock, there is no obvious solution for glasses, just a multitude of products to squirt on that claim to stop all misting up. But do they really work? In the name of science I conducted a mini experiment to compare some popular products to ascertain which were most effective.
I used a number of old pairs of glasses, which I first cleaned then applied the various products as per their directions. As a control, one pair were left untreated. I then placed the glasses in the fridge to cool to 5℃, to mimic a ride on a cool winters day. First I took the glasses out into the kitchen with a humidity reading of 55%, to see how the lenses misted up (or not). Secondly I repeated by taking the glasses from fridge to hot shower room with a humidity reading of 60% to test a more extreme scenario.