Broan Weatherization Products 688E Ventilation Fan 3" Round Duct 50 CFM 2.0 Sones

The Broan Weatherization Products 688E Ventilation Fan is a circulating airflow unit that removes stale, humid or contaminated air from enclosed spaces to improve indoor air circulation. It connects to a 3" round duct and delivering an air exchange capacity of 50 CFM while operating at a sound level of 2.0 sones for controlled noise output in HVAC systems. The fan is mounted within the ceiling or wall structure and connected to the designated ductwork for effective exhaust. Consistent humidity, balanced cooling, controlled sound performance and efficient moisture removal contribute to indoor conditions.