Air King. The AKF100D Deluxe Quiet dual-speed exhaust fan fulfills whole-house ventilation requirements with two speeds. Energy Star qualified and California Title 24 compliant, the unit includes a 26-watt fluorescent lamp and a 4-watt night light that can be wired separately. The fan operates at 0.3 sone on the low setting and 1.5 sones when running at 100 cfm. 877.304.3785. http://www.airkinglimited.com/.
Broan-NuTone. Broan Ultra Silent SmartSense bath fans meet ASHRAE 62.2 with patent-pending "smart" technology. When installed in multiple bathrooms, the fans, which communicate over existing wires servicing other systems in the home, manage the airflow needs of the whole house and each bathroom. The fans use 35 watts per cycle compared to the standard 500 watts, the company says. Backed by a three-year warranty, the fans come in 80- and 110-cfm models. 800.558.1711. www.broan.com.
Continental Fan. The two-speed AeroFan line of traditional in-ceiling bathroom fans that circulate air at 50 cfm on low speed and up to 110 cfm on high are whisper-quiet, the company says. Depending on the model and the speed, the noise level ranges from 0.9 sone to 2.0 sones, the sound of a standard refrigerator. The company designed the fans to be easy to install with adjustable mounting brackets. Energy Star-certified, the fans come with or without lights and with a variety of grille designs. 800.779.4021. www.aeroflo.com.