WhisperGreen Premium Ventilation Fan
The WhisperGreen™ Premium Ventilation
Fan by Panasonic comes in four different models, all including
advanced, built-in control technology meant to meet today’s green
standards. All models are ENERGY STAR rated, HVI certified, and
long-lasting, quiet, and energy efficient. WhisperGreen contains
SmartFlow™ technology to measure airflow resistance and automatically
adjust the blower wheel speed to provide the rated airflow level.