The Energy Star-rated WhisperGreen LED ventilation fan/light from Panasonic, which will be launched at the 2013 International Builders’ Show in January, offers spot and/or whole house ventilation for cleaner indoor air quality, the company says. The LED light fixture provides added illumination with maximum energy-efficient light output, using about 75% less energy than a traditional incandescent bulb. The fan also includes a built-in motion sensor, variable speed controls, and a delay timer.