The TL 340ES fan has the following features: Engineered to provide high air volume and powerful static pressure performance. Compact construction for ease of installation in confined spaces. Built with a well balanced air over motor impeller assembly, for smooth operation. High efficiency motor. Available with two and three inlets. Fan housing constructed of heavy gauge satin coat galvanized steel finish. Suitable for use in high-rise condominium, office buildings, schools, boardrooms or where high volume quiet ventilation is required.