An air purification device includes a housing, an air quality sensor, an LED light group, and a controller. The air quality sensor is mounted within the housing and detects air quality parameters in real time. The LED light group is mounted within the housing and includes at least one LED light. The controller is mounted within the housing and controls the at least one LED light of the LED light group to emit light of a corresponding color according to the air quality parameters. The emitted light corresponds in color to indicate an air quality.

This invention provides a ventilation kit adapted to be coupled to a recessed light fixture, and comprises two supporting members. The first is adapted to be coupled with at least one edge of the recessed light fixture, while the second is adapted to be coupled with the grid system of the ceiling. There is also through-hole for air circulation. Mounting the ventilation kit onto an existing recessed light fixture enables the existing recessed light fixtures to have either an air supply or air return ventilation feature. This invention also discloses a recessed light fixture assembly with either an air supply or air return ventilation feature.

Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can comprise at least one aperture. The system can include a plate coupled to the grille and the plate can include a recess. Also, a set of illumination devices can be at least partially disposed within the recess.

A laminar flow diffuser with integrated lighting has a frame for supporting an air plenum and a lower housing. The air plenum receives conditioned air from a source of conditioned. The lower housing is attached to the bottom of the plenum. An aperture plate damper installed below the top plenum regulates the flow of air from the plenum through the laminar flow diffuser. A clear or translucent engineered, fire rated polymer perforated diffuser face forms the outlet from the lower housing to the room below. LED strips are positioned around the inside periphery of the lower housing. A light guide is installed adjacent the LED lighting strips to spread the light across the area of the perforated diffuser face.

A combined ventilation and illumination system includes a ventilation assembly, a light fixture assembly, and a connector assembly. In an installed position, the system is installed above a ceiling of a room of building structure (e.g., a residence or workplace) to provide ventilation for the room. The system couples a light fixture to ventilation assembly below the ceiling. In the installed position, an air flow cavity is defined between the light fixture and the ceiling, where the cavity allows for air flow around the light fixture and into the ventilation assembly for eventual exhaust beyond the room in which the system is installed. The cavity includes a first critical distance that is sized according to operating parameters of a blower of the ventilation assembly to provide an adequate flow rate of intake air and to provide acceptable sound levels during operation of the system.

A unitary dining unit combining table functions and seating, which dining unit solves the above stated problems, is disclosed. The novel dining unit may be oblong, with opposed convex surfaces, to enable occupants to easily view one another, and to assist in fitting the table or desk efficiently within a square or rectangular room of a building. The unitary dining unit integrates a work surface, e.g., a table or desk surface, with seating. The integrated seating has support arms connecting the seating to the table portion, and maintaining all portions of each seat above the floor, thereby leaving space for and facilitating floor cleaning in the area of the furniture. A perimetric wall serves as an aesthetic skirt concealing seat anchorage elements and other utilitarian components from external view.

An activities unit combining a table or other horizontal surface with seating units is shown and described. Seating units may include both permanent or fixed individual seating units and also, at least one additional seating unit movable between a stowed position to a deployed position. Both permanent or fixed seating units and also stowable seating units may each be supported on the activities unit by an arm above floor level. This enables ready cleaning of a floor surface on which the unitized table is placed without having to move seating units out of the way. Construction of the unitized table enables utilitarian components and features which may be deemed unsightly to be concealed, for example, by wood paneling both at a table top and also a depending wall. The table top may overhang the depending wall.

A ceiling mountable unitized fixture providing amenities to people at a desk or table below is shown and described. The unitized fixture can provide in or on a housing, a variety of types of lighting, for serving different types of activities. Auxiliary power is available, either as a fixed, in-place electrical receptacle or alternatively, as a retractable receptacle. An air distribution manifold can be connected to a building heating and/or cooling forced air system, enabling air to be directed downwardly to those seated at a table below. Optionally, a speaker and one or more video screens may be incorporated. Lighting, electrical receptacle extension and retraction, audio, and video screens may be remotely controlled.

A scent dispenser includes a main body, a liquid tank unit, a diffusing member for diffusing the liquid from the main body, a control module supported in the main body, an audio speaker unit provided in the main body and electrically connected to the control module, and an illuminating arrangement. The illuminating arrangement includes a supporting frame supported by the main body, and a plurality of illuminating units embedded in the supporting frame and electrically connected to the control module, the illuminating units and the audio speaker unit being driven by the control module to deliver an optimal mix of lighting and sound effect respectively while the liquid is diffused and dispensed from the main body.

A housing is located at least partially beneath a rest shelf of a T-bar or other support for ceiling tiles. A spine extends up from the rest shelf. The housing includes an opening with a centerline which extends at least partially laterally. A light source such as an LED within a recess of the housing shines out of the opening along the centerline in an at least partially lateral direction. A diffuser is preferably provided spanning this opening. The housing preferably includes a front wall opposite a rear wall, with the rear wall larger than the front wall and with the opening in the housing extending between lower portions of the rear wall and lower portions of the front wall. Heat transfer fins on an upper surface of the rest shelf and upper end of the spine are preferably provided to assist in heat dissipation.