Description The Revolution Silenced fan is a class apart, the most efficient fans on the market are then wrapped in an engineered silenced body. The specially designed acoustic body and the acoustic foam halves the noise of the standard fan without reducing the powerful air flow. Our silenced fans are engineered to be sealed, powerful and silent. The Revolution Vector is the EC version of the fan, using state of the art EC technology. More powerful and over 50% more efficient than AC motors. No humming or buzzing at low speeds. These fans are the most efficient powerful duct fans of their size. They can be precisely controlled with EC Controller.
