Review on 💨 ELUTENG 40mm USB Fan: Powerful 3-Speed Control Ventilator for VR, PS, Xbox, PC Cabinet Cooling by Brian Wersching

I have a costume mask with lenses through which I can see that they regularly fog up from breathing. I installed one of them in the mask, facing the lenses, and ran a cable through my suit to a phone charger sewn into my shirt. It worked PERFECTLY. A full day of clear vision at low speed and a light breeze at high speed. Very quiet. Even at high speed, the noise wasn't that noticeable and literally touched my head.