It makes as little fan/air noise as I think it reasonably can (and doesn’t beep, I hate beeping appliances!) and moves as much air as I would expect for its size. It’s weaker than a 20″ box fan in terms of total airflow, but 2 x 8″ fans = 16″ and 16
https://www.amazon.com/Holmes-HAWF2043-Blade-Window-Thermostat/dp/B000065DK8

