The SP line of bathroom exhaust fans has added the Model SP-A-VG ceiling exhaust fan. Featuring a direct drive Vari-Green electronically commutated (EC) motor, the unit is said to be nearly 250% more energy efficient than the company’s standard models. The motor automatically adjusts fan speed to maintain constant, quiet airflow to 0.8 in. wg. ESP. Three speeds can be set for each of two different models.