The WhisperGreen Select Multi-Speed Module offers advanced ventilation control tailored to meet ASHRAE 62.2 continuous ventilation standards. This versatile module enables users to select from preset lower CFM settings (0, 30-100 or 0, 50-120 CFM) for continuous operation, with the option to boost airflow to higher levels (50-80-110 or 110-130-150 CFM) when activated by a wall switch, motion sensor, or condensation sensor. The integrated high/low delay timer allows the fan to return to its preset CFM level after a user-defined period, ensuring efficient and customizable ventilation for various applications including single-family homes, multi-family units, hospitality settings, and more.