An air flow producer assembly includes first and second elongate mounting elements separated by an elongate gap, a ceiling girder interface member affixed to each of the elongate mounting elements, and a bridge member affixed to each of the elongate mounting elements. The bridge member includes a hollow chamber that spans across the gap and which extends upwards from the elongate mounting elements. A vane assembly is installed in the hollow chamber of the bridge member, which includes a vane that swings across at least a portion of the gap.

An indoor external air filtering and fragrance diffusing system composed of a cage like apparatus that attaches to an existing air vent and holds in place air filter. The present invention includes a device to hold a filter from the exterior of a conventional air vent, allowing the airflow into a room from the central air system and a customized air filter. The present invention incorporates a variety of air filters that can be adapted to the specific needs of a user. One variation of the filter contains an embodiment that is comprised of absorbent material where a fragrance of choice can be added. Yet another variation of the filter contains an embodiment of absorbent material that already contains fragrance.

It is disclosed a ventilator (9A, 9) comprises a housing (20) having opposite first (21) and second ends (22) and an axial rotor (23) arranged in a ventilator flow path (23A), wherein the ventilator flow path (23A) has an inlet at the first end (21) of the housing (20) and an outlet (22A) at the second end of the housing (20) and wherein an additional flow path (25) is present comprising one or more sensors and which additional flow path (25) fluidly connects an opening (16, 24) in the housing (20) with the ventilator flow path (23A) for drawing in air due to a venturi effect via the additional flow path (25) towards the ventilator flow path (23A), wherein the sensors are temperature and/or humidity sensors.

A bracket that is mounted in a wall or ceiling, and cooperates with an insert that can be adjusted flush with the wall or ceiling surface. Slots in the flange, and dimples in the insert facilitate the flush adjustment.

A kitchen air-conditioning system comprises an air-conditioning assembly (1) and a range hood assembly (2); the air-conditioning assembly (1) comprises a compressor (11), a first heat exchanger (12) and a second heat exchanger (13) which are connected with each other through a plurality of refrigerating medium pipes (14); the range hood assembly (2) comprises a housing (21) and a fan (22), a rear air exhaust passage (3) is disposed outside of the housing (21); a third heat exchanger (4) and the fan (22) are disposed in the rear air exhaust passage (3); the third heat exchanger (4) communicates with the second heat exchanger (13) through a secondary refrigerant pipe (5). As the third heat exchanger (4) in the rear air exhaust passage (3) in communicates with the second heat exchanger (13) through the secondary refrigerant pipe (5), heat generated by the operation of the air-conditioning assembly (1) can be quickly exhausted to the outside through the fan (22).

A central air-conditioning system, comprises a plurality of air-conditioning assemblies (1) and a plurality of range hood assemblies (2); each air-conditioning assembly (1) comprises a compressor (11), a first heat exchanger (12) and a second heat exchanger (13) which are connected with each other through refrigerating medium pipes (14); all the range hood assemblies (2) are in communication with the public flue (6); a third heat exchanger (3) and the second heat exchanger (13) is connected through a secondary refrigerant channel (4); each end of each secondary refrigerant channel (4) respectively exchanges heat with the second heat exchanger (13) and the third heat exchanger (3). As all the range hood assemblies (2) are in communication with the public flue (6), the third heat exchanger (3) exchanges heat with the second heat exchangers (13) through the secondary refrigerant channel (4), when the system is operating, the heat energy generated by the air-conditioning assemblies (1) can be discharged through the public flue (6).

A kitchen air-conditioning system comprises an air-conditioning assembly (1) and a range hood assembly (2). The air-conditioning assembly (1) comprises a compressor (11), an evaporator (12) and a condenser (13) which are connected with each other through a plurality of refrigerating medium pipes (14); the condenser (13) and the range hood assembly (2) are connected through a secondary refrigerant pipe (3), a heat dissipation unit (4) in communication with the secondary refrigerant pipe (3) is disposed on the range hood assembly (2). The secondary refrigerant pipe (3) on the condenser has a secondary refrigerant inlet and a secondary refrigerant outlet, and the secondary refrigerant in the secondary refrigerant pipe (3) can exchange heat with the refrigerating medium in the condenser (13), and the heat dissipation units (4) connected to the secondary refrigerant pipe (3) can quickly take away heat generated by the condenser.

The invention relates to a channel element for a ventilation system. The channel element has a first opening (O1), a second opening (O2), and a channel wall which extends between the openings and surrounds a channel section. The channel element has a tubular section (25) and a thermally insulating envelope section (20) which is paired with the tubular section and envelopes same at least in sub-regions. The invention further relates to a channel element system made of individual channel elements which are connected together in series and a building envelope which contains such a channel element system.

The invention generally relates to ventilation systems and methods, and more particularly to selectively configurable climate control systems and methods for use in data centers and the like. A device includes a support element and a plurality of ducts connected to the support element. The device also includes a manifold in fluid communication with each one of the plurality of ducts and a plurality of valves. Each respective one of the plurality of valves is associated with a respective one of the plurality of ducts. Moreover, there is at least one actuator operatively connected to the plurality of valves, which is structured and arranged to individually actuate each one of the plurality of valves.

A plug which fits into the top aperture of an air vent to be mounted on an air flow pipe or flume prevents cement flowing into the vent when a concrete floor is laid. The vent has a peripheral protrusion and a top flange. The plug protrusion snap fits into a in the top of the vent aperture and can be pulled out when the concrete is set. The plug has sides which extend upward an outward from the vent top so the laid concrete floor has a slot communicating with the vent and the vent top is installed below the floor and thus cannot be easily damaged by storing and removal of produce. The vent is inserted into a plate covering a flume where the plate has ribs and protrusions locating the required rebar and end tabs holding the plates end to end.