Review on 🌀 AC Infinity AXIAL LS1238, Silent Muffin Fan, 120V AC 120mm x 38mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects by Francisco Holmes

Very well built (and very quiet) but didn't move enough air for my exhaust fan application. I returned it and bought the 1238 (higher speed) which is a bit noisier as it moves a lot more air. If you are unsure what to buy I recommend purchasing the 1238 (higher speed) with an additional speed controller also available on AMAZON.COM. The LS1238 is probably perfect for mounting a computer or electronics (or even as a personal desktop fan). I believe these fans will last a very long time. I've been using the higher speed fan for most of the week now with no change in noise level and no visible heating of the fan case.