Abstract: A humidity monitoring system mountable to a wall has a housing for receiving a humidity sensor. A face plate having an extended portion can be mounted over the housing such that the extend portion is positioned adjacent to the humidity sensor. The extended portion defining a secondary space within which humid air can be pass proximate to the humidity sensor to improve the monitoring of the ambient humid air.

Abstract: A grille having a frame defining a grille opening and for receiving a plurality of first louvers and a plurality of second louvers. The first plane and second plane are separated by a predetermined offset depth to define a gap between adjacent first louvers and second louvers along an axis perpendicular to the plane of the frame. The first louvers can be spaced apart to define a first gap between adjacent first louvers. A second louver can be positioned at the second plane to align with the horizontal gap between adjacent first louvers such that the first and second louvers cooperate to obscure viewing through the grille at least along the axis perpendicular to the plane of the frame.

Abstract: A lighting module having at least a semitransparent cover and at least one light emitting diode oriented to emit light through the semitransparent cover. Each light emitting diode is positioned a minimum distance from an inner surface of the semitransparent cover.

Abstract: A ventilation assembly having a main housing that can be pre-installed in a wall or ceiling aperture. A fan assembly can be inserted through the aperture and releasably mounted within the main housing. The fan assembly can be removed from the main housing and replaced without removing the main housing from the wall or ceiling. An accessory component can be releasably mounted to the fan assembly either through the aperture when the fan assembly is mounted or prior to installation of the fan assembly.