Broan-NuTone LoProfile Series 80 CFM Ceiling/Wall Mount Bathroom Exhaust Fan with 4 in. Oval Duct or 3 in. Round Duct, ENERGY STAR* LPN80 - The Home Depot
Broan-NuTone 200 CFM Through-The-Wall Exhaust Fan with On/Off Switch 509S - The Home Depot
Broan Nutone 110 CFM 0.9 Sones Fan with 1500W Heater - Walmart.com