A new kit from Broan and NuTone lets you cut fan noise almost in half (meaning the fan is barely audible). Installing the new fan and motor only takes about 10 minutes, with no rewiring or duct work required. The kit works on most Broan, NuTone and Nautilus fans—most bath fans are one of these brands. The Bath Fan Upgrade Kit is simply a quieter replacement fan that fits in the existing housing, so there's no need to rip up the ceiling, and the new grille gives your fan a new look.
The more powerful motor in this quieter fan means the fan will do a better job of ventilating the room. Buy the kit (No. 690) on Broan's Web site (broan.com) or at most home centers. Everything you need is contained in the kit, including the wrench.
If you have a grille other than the two shown here, the upgrade kit won't work on your fan.