Aero Pure 90-CFM Bath Fan w/Humidity Sensor 0.3-Sone 90-CFM White Decorative Bathroom Fan ENERGY STAR in the Bathroom Fans & Heaters department at Lowes.com
Improve Bathroom Ventilation with Advanced Ventilators: Humidity Sensor, Timer, and Back Valve for Optimal Air Quality.
Homewerks 7136-02HW Bathroom Vent Fan with Automatic Humidity Sensor and Powerful Exhaust Ventilation Fan for Large Room 140 CFM Whisper Quiet 1.0 Sone Energy Star - Amazon.com
Panasonic WhisperFit DC Condensation Sensor, Pick-A-Flow 50,80,110 CFM, ENERGY STAR Quiet EZ Install Ceiling Bathroom Exhaust Fan FV-0511VFC1 - The Home Depot
AP Slim Fit Exhaust Fan with Humidity Sensor by Aero Pure | AP90H-S W | AER475041
Delta BreezSlim SLM70H 70 CFM Bath Exhaust Fan with Humidity Sensor - Amazon.com