It's not too shabby. Granted this will be upstairs in its own dedicated bedroom furthest away from the main areas that the household spends the majority of our time in.

You definitely don't want to be in the same room with 2x of these cranked up to 10/10 on the speed setting: https://www.amazon.com/gp/product/B074XBXFPD/ref=ppx_yo_dt_b_asin_title_o04_s03?ie=UTF8&psc=1

I got this kit to seal up the window, requires some modifications of course :) https://www.amazon.com/gp/product/B07W966YNZ/ref=ppx\_yo\_dt\_b\_asin\_title\_o01\_s02?ie=UTF8&psc=1