Review on Stay Cool and Breathe Clean with our Electric Face Fan - Perfect for Gardening, Travel, and Outdoor Sports! by Leo Govindan

You see a lot of these masks with little exhaust fans here at Revain and most of them are pretty awful. I was pleasantly surprised to see that they work very well. The fan has several different speeds and it worked well to get hot air out of the mask to keep my glasses from fogging up. Also, there are these soft plastic cushions that rest on the bridge of the nose and make this mask really comfortable to wear.