In a roof window system, the roof window (1) has a frame with a frame top member (21), and a sash with a sash top member (31), and further a ventilation device (40) for connection to a ventilation assembly by means of transition means provided between the ventilation assembly and the frame top member (21) and the sash top member (31) of the roof window (1) to accommodate a set of flow paths for air to and from the ventilation assembly. The transition means comprise a plurality of apertures (2102) extending through the frame top member (21).

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

An energy recovery ventilator door assembly includes an exterior door for a structure, the door including an inside fan and an outside fan for providing flows of air to a manifold. The manifold includes an inside manifold conduit for receiving stale inside air and an outside manifold conduit for receiving fresh outside air. A heat sink between the two conduits recovers heat energy from the warmer flow of air flowing in the conduits and transmits the recovered heat energy to the cooler of the flows of air in the conduits. A crossover element routs the inside conduit from the inside of the door to the outside of the door, and routs the outside conduit of the door to the inside of the door. Thus the air in the inside manifold conduit is vented to the outside of the structure through the door and the air in the outside manifold conduit is vented to the inside of the structure through the door.

An energy recovery ventilator door assembly includes an exterior door for a structure, the door including an inside fan and an outside fan for providing flows of air to a manifold. The manifold includes an inside manifold conduit for receiving stale inside air and an outside manifold conduit for receiving fresh outside air. A heat sink between the two conduits recovers heat energy from the warmer flow of air flowing in the conduits and transmits the recovered heat energy to the cooler of the flows of air in the conduits. A crossover element routs the inside conduit from the inside of the door to the outside of the door, and routs the outside conduit of the door to the inside of the door. Thus the air in the inside manifold conduit is vented to the outside of the structure through the door and the air in the outside manifold conduit is vented to the inside of the structure through the door.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

A ceiling system is provided that has a ceiling structure suspended within a space of a building thereby dividing the space into an occupied space below the ceiling structure and a plenum space above the ceiling structure; a panel structure supported by the ceiling structure and having an opening; a pressurized air passageway aligned with the opening, the pressurized air passageway having an outlet; and an inductive air passageway adjacent the pressurized air passageway, the inductive air passageway having an inlet and an outlet. Wherein the pressurized air passageway and the inductive air passageway are configured such that pressurized air passing through the outlet of the pressurized air passageway induces an induced air flow out of the outlet of the inductive air passageway.

A ceiling system is provided that has a ceiling structure suspended within a space of a building thereby dividing the space into an occupied space below the ceiling structure and a plenum space above the ceiling structure; a panel structure supported by the ceiling structure and having an opening; a pressurized air passageway aligned with the opening, the pressurized air passageway having an outlet; and an inductive air passageway adjacent the pressurized air passageway, the inductive air passageway having an inlet and an outlet. Wherein the pressurized air passageway and the inductive air passageway are configured such that pressurized air passing through the outlet of the pressurized air passageway induces an induced air flow out of the outlet of the inductive air passageway.

Provided is an instrument panel structure including: a lower panel portion that is provided with an air-conditioning device at an interior thereof, the lower panel portion having, in a vehicle upper portion thereof, a placement surface portion that extends in a vehicle width direction and a vehicle front-rear direction, and having an open portion, for the air-conditioning device, that opens toward a side of the placement surface portion; an upper panel portion that covers the placement surface portion as seen from a vehicle upper side and that is placed on the placement surface portion; and a slit-shaped air outlet portion that is formed between the lower panel portion and the upper panel portion, that extends in the vehicle width direction while facing a seat side, and that communicates the open portion with a vehicle cabin.