Review on 🌀 UTUO Brushless Radial Blower: High Speed 12V DC Centrifugal Fan - Dual Ball Bearing, XH-2.5 Plug, 120mm x 120mm x 32mm (4.72x4.72x1.26 inch) by Bradley Wacks

First off, it moves a ridiculous amount of air for its size. At full speed, you'll feel the air at 6 feet with ease. The downside is that it's noisy, especially after it's been hacked. It was pretty quiet for the first two weeks, like someone using a hair dryer in another room through a closed door. But it got to the point where it sounded like the hair dryer was in the room with you. To compound the problem, mine had a cracked case so I had to refill the case with epoxy above the outlet. All in all, if noise isn't an issue, this is the cheapest fan that will move this amount of air. It can easily accommodate a small inflatable boat.