Comment by daenz

I haven't used that specific construction, but I have used this one[0] when I moved to a location without realizing the extent of the wildfire smoke. It worked well, but yes it is noisy on the highest setting. I continue to use it because it's inexpensive and the parts are readily available.

0. https://deohs.washington.edu/edge/blog/how-make-box-fan-filt...