A ventilation apparatus including a housing having an inlet flow path to discharge outdoor air, to an indoor space through a first outlet, and an outlet flow path to discharge indoor air, to an outdoor space through a second outlet, a total enthalpy heat exchanger in which air flowing along the inlet flow path and air flowing along the outlet flow path exchange heat, and a heat exchanger to remove moisture in the air flowing along the inlet flow path. The housing including a connection flow path connecting the inlet flow path to the outlet flow path, and a connection path opening and closing unit configured to selectively open and close the connection flow path. The connection flow path to allow indoor air, to pass through the heat exchanger and flow to the first outlet while preventing the indoor air from flowing to the total enthalpy heat exchanger.

A ventilation apparatus including a housing having an inlet flow path to discharge outdoor air, to an indoor space through a first outlet, and an outlet flow path to discharge indoor air, to an outdoor space through a second outlet, a total enthalpy heat exchanger in which air flowing along the inlet flow path and air flowing along the outlet flow path exchange heat, and a heat exchanger to remove moisture in the air flowing along the inlet flow path. The housing including a connection flow path connecting the inlet flow path to the outlet flow path, and a connection path opening and closing unit configured to selectively open and close the connection flow path. The connection flow path to allow indoor air, to pass through the heat exchanger and flow to the first outlet while preventing the indoor air from flowing to the total enthalpy heat exchanger.

An indoor pollution prevention system includes a plurality of gas detection modules, one or more intelligent control-driving processing devices, one or more gas-exchange processing devices, one or more intake passages, and one or more discharge passages. The intake passage is connected to the gas-exchange processing device and has an intake opening for guiding the outdoor gas into an indoor space. The discharge passage is connected to the gas-exchange processing device and has a discharge opening for discharging the air pollution source to the outdoor space. The intelligent control-driving processing device controls the gas-exchange processing device to be enabled under a surveillance condition of the gas detection module, so that the air pollution source passes through the discharge passage, filtered and purified by a cleaning and filtration assembly, and is discharged to the outdoor space, thereby allowing the indoor space to have a clean air.

An indoor pollution prevention system includes a plurality of gas detection modules, one or more intelligent control-driving processing devices, one or more gas-exchange processing devices, one or more intake passages, and one or more discharge passages. The intake passage is connected to the gas-exchange processing device and has an intake opening for guiding the outdoor gas into an indoor space. The discharge passage is connected to the gas-exchange processing device and has a discharge opening for discharging the air pollution source to the outdoor space. The intelligent control-driving processing device controls the gas-exchange processing device to be enabled under a surveillance condition of the gas detection module, so that the air pollution source passes through the discharge passage, filtered and purified by a cleaning and filtration assembly, and is discharged to the outdoor space, thereby allowing the indoor space to have a clean air.

A device for treating the air in a confined space has a first module and a second module that are telescopically coupled, in such a way that the two modules can slide one respect to the other in order to adjust to a different thickness of a wall that separates the inside from the outside. The device has a heat exchanger disposed in the first module, a first fan disposed in the first module downstream a filter to extract air from the outside to the inside, and a second fan disposed in the second module to extract air from the inside to the outside. The device also has a radon detector connected to a control unit that controls the two fans.

A device for treating the air in a confined space has a first module and a second module that are telescopically coupled, in such a way that the two modules can slide one respect to the other in order to adjust to a different thickness of a wall that separates the inside from the outside. The device has a heat exchanger disposed in the first module, a first fan disposed in the first module downstream a filter to extract air from the outside to the inside, and a second fan disposed in the second module to extract air from the inside to the outside. The device also has a radon detector connected to a control unit that controls the two fans.

The range hood unit includes a range hood transmitting unit configured to transmit information on an exhaust volume. The heat exchanging ventilation device (1) includes: a heat exchanger receiving unit (19) configured to receive the information from the range hood transmitting unit; and a heat exchanger control unit (17) configured to determine the operation of the heat exchanging ventilation device (1), based on the information received by the heat exchanger receiving unit (19). Based on the exhaust volume of the range hood unit that has been received by the heat exchanger receiving unit (19), the ventilation system exhausts air by subtracting the exhaust volume of the range hood unit from an exhaust volume equivalent to the air supply volume of the heat exchanging ventilation device (1).

The range hood unit includes a range hood transmitting unit configured to transmit information on an exhaust volume. The heat exchanging ventilation device (1) includes: a heat exchanger receiving unit (19) configured to receive the information from the range hood transmitting unit; and a heat exchanger control unit (17) configured to determine the operation of the heat exchanging ventilation device (1), based on the information received by the heat exchanger receiving unit (19). Based on the exhaust volume of the range hood unit that has been received by the heat exchanger receiving unit (19), the ventilation system exhausts air by subtracting the exhaust volume of the range hood unit from an exhaust volume equivalent to the air supply volume of the heat exchanging ventilation device (1).

A greenhouse-linked air conditioning system includes a first greenhouse through which sunlight is transmitted and in which plants are grown, a second greenhouse through which sunlight is not transmitted and in which plants are grown, an indoor space excluding the first and second greenhouses in a building, a sunlight panel formed outside the first greenhouse and generating power using the sunlight, an auxiliary light source connected to the sunlight panel to provide light to the second greenhouse, and an air conditioning unit configured to connect the first and second greenhouses and the indoor space and selectively exchange air, humidity, and energy between the first and second greenhouses and the indoor space.

A method for building a soundproof enclosure (10) in the form of an independent structure with acoustic properties for isolating noise and vibration is disclosed. The soundproof enclosure (10) comprised a plurality of acoustical wall panels (12) interconnectable each to another at opposing sides for enclosing an interior space (41) of various sizes. The soundproof enclosure (10) further comprised one or more modular multilayer ceiling unit(s) (13) assembled onto the top edges of the acoustical wall panels (12) to form the enclosure. The ceiling unit (13) comprised a plurality of ceiling layers (17), each ceiling layer (17) being vertically spaced apart with one another by brackets to topographically form the multiple guided spaces necessary for air flow circulation within the enclosure (10). These guided spaces can also house multiple implements such as circulation fan, air filter and sound silencer. Sound insulating material layer(s) are interposed between the contacting surfaces of the ceiling unit (13) and the acoustical wall panels (12) and/or all around the surfaces to isolate and decouple the ceiling unit (13) from the acoustical wall panels (12) from vibrations. A sound barrier cover (16a or 79) is interposed at the openings (25) of the air passages (24) to further reduce the sound level emitted into and exiting from the enclosure. In addition, a construction method by elevating the heavy acoustical wall panels (12) and the ceiling units (13) until they fall into precise assembly location for ease of assembly of the components of the enclosure (10) and a floor base unit 11 that enabled the enclosure (10) to about easily in whole is also disclosed. Furthermore, a method to ease assembly of the enclosure (10) by use of removable heavy-duty handles (87) is disclosed.