My new slightly quieter Corsi-Rosenthal box

Here is the TL:DR - I made a new Corsi-Rosenthal box with a disassembled pedestal fan that is 5 decibels quieter than my old Corsi-Rosenthal box made with a box fan. This summer, I noticed that our pedestal fan was a lot quieter than the box fan mounted onto our Corsi-Rosenthal box. Louder enough to make a difference to a guy like me with a certain amount of hearing loss who wants to hear his…