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Upgrade your home or office ventilation system with the PANASONIC BthrmFn 4In Duct Dia Znc-Al-Mgn 120 V bathroom fan. Designed for powerful yet quiet performance, this single fan design exhaust fan provides up to 110 CFM of airflow, making it ideal for medium to large sized bathrooms or other small spaces where ventilation is essential. The Pick-A-Flow speed selector allows you to choose your desired CFM for optimum performance and the SmartFlow technology ensures consistent and reliable operation. UL Listed for use over tub/shower enclosures, this fan can also be used in new construction or replacement applications to help maintain indoor air quality and prevent mold growth. With its compact design and lightweight construction, the PANASONIC BthrmFn 4In Duct Dia Znc-Al-Mgn 120 V bathroom fan is easy to install in a variety of spaces, while still providing exceptional performance. Choose this exhaust fan for your home or office ventilation needs and enjoy fresh, clean air every time you use it.