The present invention relates to a valve assembly (1) for an air duct for ventilation of a building, comprising a valve (10; 100), a housing (40), and an electrical body (20) provided within said housing. The valve (10, 100) comprises adjustment means to adjust the position of flow regulating means (113, 126) of the valve (10; 100), wherein the position of the flow regulating means (113, 126) is configured to adjust the size of a gap (50) between the valve (10; 100) and the outer circumference at the distal end of the electrical body (20), regulating a flow or pressure of air flowing through the valve (10; 100), wherein the size of the gap (50) is measured perpendicular to the outer circumference as the smallest distance from the distal end of the electrical body (20) to the flow regulating means (113, 126) of the valve (10; 100).

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.

Disclosed embodiments relate to a combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. Disclosed embodiments further include ceiling tiles with a built-in fan and/or LED lighting. The disclosed systems may include one or more UV-C light sources which irradiate contaminants as air flows through the UV-C unit. The UV-C unit is mounted on either a universal mounting mechanism or a mobile support unit to provide mobility to the UV-C unit.

A ventilation fan unit for causing air flow with respect to a room having a ceiling, the room designed for occupancy by a person. The fan unit has a fan unit housing mounted in the ceiling and having an air vent on a room facing surface of the fan unit housing for drawing air from or delivering air to the room. A replaceable panel is provided with a first surface and a second surface, the replaceable panel is removably attachable with the room facing surface of the fan unit housing by way of coupling between the replaceable panel and the fan unit housing so that the replaceable panel can be removed and replaced with another replaceable panel attachable to the fan unit housing by way of the coupling. The replaceable panel, when attached to the fan unit housing, is positioned to obstruct the person's view of the air vent while allowing flow of air therethrough

An air diffuser assembly for transferring airflow from an HVAC system to an environment. The air diffuser assembly comprises a body at least partially located in a duct of the HVAC system and a cover including at least one vent assembly for permitting airflow through the cover and into the environment. The body defines an aperture for transferring airflow from the duct and an air filter is located in the aperture for filtering air transferred therethrough. The cover includes a closed position, wherein the cover is placed against the body to form a cavity, and an open position, wherein the cover is moved from the body to permit access to the filter.

An air diffuser assembly for transferring airflow from an HVAC system to an environment. The air diffuser assembly comprises a body at least partially located in a duct of the HVAC system and a cover including at least one vent assembly for permitting airflow through the cover and into the environment. The body defines an aperture for transferring airflow from the duct and an air filter is located in the aperture for filtering air transferred therethrough. The cover includes a closed position, wherein the cover is placed against the body to form a cavity, and an open position, wherein the cover is moved from the body to permit access to the filter.

An illuminated aircraft passenger cabin gasper comprises an air outlet for outputting a flow of air into an aircraft passenger cabin and an air guide, movably arranged within the air outlet for adjusting the flow of air that includes a light guide. The gasper also includes at least one light source, arranged adjacent to the light guide for coupling light into the light guide. The light guide has a light output surface for coupling light out of the light guide into the aircraft passenger cabin.

An illuminated aircraft passenger cabin gasper comprises an air outlet for outputting a flow of air into an aircraft passenger cabin and an air guide, movably arranged within the air outlet for adjusting the flow of air that includes a light guide. The gasper also includes at least one light source, arranged adjacent to the light guide for coupling light into the light guide. The light guide has a light output surface for coupling light out of the light guide into the aircraft passenger cabin.

A singular passive/active ventilation and lighting apparatus for enclosed spaces. The apparatus is adapted to harness solar energy through a cover which also directs light down through a reflective tube. The apparatus provides a passive vent which is fluidly coupled to the same reflective tube. As the reflective tube couples the external environment with an enclosed space, passive/active ventilation and passive/active light is directed to the enclosed space. The solar energy is directed to other components supported by the singular apparatus, like the active lighting and active ventilation fan as well as a wireless router, an electric charger and power storage unit for storing the harnessed solar energy and powering the active components.

An air-processing apparatus is provided that may include a case having an outlet formed therein, at least one louver rotatably disposed in the case to adjust a direction of air flowing through the outlet, and an output device including a lamp, a printed circuit board on which the lamp is mounted, and a transparent panel configured to allow light emitted from the lamp to pass therethrough. The at least one louver may include a plurality of vanes spaced apart from each other in a radial direction about a louver rotational shaft. The transparent panel may be disposed in at least one of the plurality of vanes.