Abstract: A ventilating system includes a main housing defining an inlet configured to receive air into the main housing and an outlet configured to allow the air to exit the main housing. The system further includes a fan in the main housing and configured and arranged to generate a flow of air into the main housing through the inlet and from the main housing through the outlet. The system further includes a grille configured to be coupled to the main housing, a plate configured to be coupled to the grille, and a lens coupled to the plate.

Abstract: A ventilation fan includes a scroll formed to define an interior space, an inlet opening into the interior space, and an outlet opening into the interior space and spaced apart from the inlet. A fan wheel is coupled to the scroll within the interior space and includes a plurality of fan blades configured to rotate about a vertical rotation axis to draw air into the interior space to ventilate a room positioned adjacent to the ventilation fan. An inlet collar is coupled to an exterior surface of a bottom wall of the scroll and extends through the inlet. The inlet collar has a upper, distal end located above a lower end of each of the plurality of fan blades when the ventilation fan is installed above or adjacent to a ceiling of the building.

Abstract: A scroll for a blower assembly includes a motor-mount plate, and a housing configured to be coupled to the motor-mount plate to define an interior blower cavity. The housing comprises inner and outer walls defining a cavity configured to dampen noise and vibrations produced by the blower assembly during operation.