TT Silent M 150 is a 6-inch inline mixed-flow fan from Vents-US designed for quiet, high-pressure ventilation in residential and light commercial installs. The metal, noise-absorbing casing and mixed-flow impeller reduce sound while maintaining performance. It runs on a two-speed AC motor with a built-in speed switch and long-life ball bearings, and comes with a mounting plate and power cord. On high speed it is rated at 327 CFM (about 556 m³/h) at 0.0" static pressure; duct size is 6 inches (150 mm). The series is ETL certified and backed by a two-year warranty. Typical applications include duct boosting, apartments, and small rooms where low noise and reliable airflow are required.