I replaced my standard factory fan with a Maxxair 10 speed remote control fan. These fans are quiet and strong. The DW can't reach the bathroom switch, and nobody can in the bedroom, it's right over the bed.
I actually changed two, one in the bathroom, and one in the front bedroom, where there was just a vent. I love them.
If you like, I will send you my old fan assembly for the price of shipping. It works great.. well as great as the stock fan does.
Personally, I would never go back.
Doug and Patience and Shelby the mutt
2015 Crossroads Sunset Trail Reserve ST26RB
2013 Ford F-150 3.5 EcoBoost XLT Supercab 4x4