The Ventilating Fans Fantech PB 190 is a reliable and efficient in-line (single-port) fan manufactured by Fantech. This fan, with a duct size of 6 inches in diameter, provides powerful airflow up to 260 cubic feet per minute (CFM). With its one-speed operation, it effectively ventilates any space without the need for additional lighting. Although lacking specific power factor information, the PB 190 boasts an impressive efficacy of 3.9 CFM per watt. Its sound level is not specified but can be assumed to be low based on its overall design and functionality. Released on September 1, 2016, this Fantech model offers durability and longevity while remaining energy-efficient. While it does not include any built-in lighting or special features like dimming or motion sensing capabilities, it serves as a dependable solution for improving air circulation and maintaining optimal ventilation in various applications such as bathrooms and utility rooms. Please note that certain details like color rendering index (CRI