Panasonic FV-0511VF1 WhisperFit DC Fan 50-80-110 CFM Retrofit Bathroom Exhaust Fan - Quiet Energy Star-Certified Energy-Saving Bathroom Ceiling Fan - Amazon.com
Panasonic WhisperValue 0.3-Sone 100-CFM White Bathroom Fan ENERGY STAR in the Bathroom Fans & Heaters department at Lowes.com
Panasonic FV-08-11VF5 WHISPERFIT EZ RETROFIT FAN, 80 OR 110 CFM