The WhisperGreen™ Series of ventilation fans feature Custom Vent™ variable-speed control with a delayed off timer that allows the fan to run continuously at a preset lower level (30 to 110 cfm). The fan then elevates to a maximum level of operation (110 cfm) when the switch is turned on, or the SmartAction™ motion sensor is activated. The delayed off timer returns the fan to the minimum cfm level after a period of time set by the uer.
FREE INFO: CIRCLE NO. 322
May 1, 2006