Panasonic Home & Environment Co. expanded its WhisperGreen line of ventilation fans with the addition of two new WhisperGreen-Lite models. Designed for 4-inch ducts, the new energy efficient WhisperGreen-Lite FV-08VKML2 and FV-08VKSL2 models feature built-in variable speed controls that range from zero to 80 cubic feet per minute and a built-in delay timer that can be pre-set up to 60 minutes. The low-speed controls on the 80-cfm models can be pre-set to 0, 30 or 70 cfm. When the fan is activated, it boosts up to a speed of 80 cfm and after a pre-determined time period, the fan returns to the pre-set low speed operation. Other advantages of the new models include quiet operation, two 18-watt compact fluorescent Energy Star-qualified light bulbs, and a nightlight feature. Also, the new WhisperGreen-Lite models now provide homeowners with the ability to use the fan for spot or continuous ventilation.

Panasonic Corp. of North America, One Panasonic Way, Secaucus, NJ 07094;www.panasonic.com.