Review on 🌬️ UL-Certified AC Infinity AXIAL 1238 Muffin Fan, 120V AC, 120mm x 38mm High-Speed for DIY Cooling, Ventilation, Exhaust Projects by Ashley Lynn

I installed this fan on my garage door to help dissipate heat from the lack of insulation. This fan works great, and while it's about 5 x 5, it does its job pretty well. I added a thermostat to start at 80 degrees with a 2 degree difference. I staple the window screen to keep bugs out and waterproof it for the winter. I also opened a side window to let fresh (outside) air into the room to replace the hot air coming out through the fan. Very satisfied with his work so far (3 months).