The present invention relates to an air purifier (1) comprising a body (2) having an air inlet (I) through which the air in the environment is sucked and a clean air outlet (O) through which the cleaned air is released to the environment, a first CO.sub.2 sensor (10) which is disposed at the air inlet (I) and a second CO.sub.2 sensor (11) which is disposed at the clean air outlet (O), a CO.sub.2 adsorption unit (3) which chemically adsorbs the carbon dioxide in the air by supplying a basic solution, a pump (4) which delivers the ambient air to the CO.sub.2 adsorption unit (3) through the air inlet (I), abase tank (8) which supplies the basic solution to the CO.sub.2 adsorption unit (3), an acid tank (7) wherein the air of which the carbon dioxide is adsorbed is treated with an acidic solution, and an electrodialysis unit (5) which separates the salt components formed after the ambient air is treated with the basic solution and the acidic solution into acid and base.

The present invention relates to an air purifier (1) comprising a body (2) having an air inlet (I) through which the air in the environment is sucked and a clean air outlet (O) through which the cleaned air is released to the environment, a first CO.sub.2 sensor (10) which is disposed at the air inlet (I) and a second CO.sub.2 sensor (11) which is disposed at the clean air outlet (O), a CO.sub.2 adsorption unit (3) which chemically adsorbs the carbon dioxide in the air by supplying a basic solution, a pump (4) which delivers the ambient air to the CO.sub.2 adsorption unit (3) through the air inlet (I), abase tank (8) which supplies the basic solution to the CO.sub.2 adsorption unit (3), an acid tank (7) wherein the air of which the carbon dioxide is adsorbed is treated with an acidic solution, and an electrodialysis unit (5) which separates the salt components formed after the ambient air is treated with the basic solution and the acidic solution into acid and base.

An air purifier includes a housing that includes an intake port and an exhaust port, a filter unit that includes a photocatalytic filter and is housed in a unit housing within the housing, a light source that exposes the photocatalytic filter to light, and a blast fan that generates a flow of air passing through the unit housing. The photocatalytic filter is formed in a wavy shape in which ridge portions and trough portions extending in a first direction are alternately arranged in a second direction orthogonal to the first direction, and the photocatalytic filter is housed in the unit housing such that the flow of air flows along the first direction.

An air purifier includes a housing that includes an intake port and an exhaust port, a filter unit that includes a photocatalytic filter and is housed in a unit housing within the housing, a light source that exposes the photocatalytic filter to light, and a blast fan that generates a flow of air passing through the unit housing. The photocatalytic filter is formed in a wavy shape in which ridge portions and trough portions extending in a first direction are alternately arranged in a second direction orthogonal to the first direction, and the photocatalytic filter is housed in the unit housing such that the flow of air flows along the first direction.

Disclosed is an air conditioner for creating a comfortable indoor environment. The air conditioner includes an indoor unit configured to have a carbon dioxide remover for filtering carbon dioxide from indoor air to supply clean air into a room, and discharging the filtered carbon dioxide to the outside, an outdoor unit configured to have an oxygen generator for separating oxygen from outdoor air introduced from the outside to supply the separated oxygen into the room, and discharging residues from which the oxygen is separated to the outside; and a processor configured to control the carbon dioxide remover and the oxygen generator to discharge the filtered carbon dioxide and the residues to the outdoor together. According to the disclosure, by first removing the carbon dioxide from the room and then discharging the carbon dioxide and the residues while operating the oxygen generator, a piping installation operation by a simple piping structure as well as an efficient operation is possible.

Disclosed is an air conditioner for creating a comfortable indoor environment. The air conditioner includes an indoor unit configured to have a carbon dioxide remover for filtering carbon dioxide from indoor air to supply clean air into a room, and discharging the filtered carbon dioxide to the outside, an outdoor unit configured to have an oxygen generator for separating oxygen from outdoor air introduced from the outside to supply the separated oxygen into the room, and discharging residues from which the oxygen is separated to the outside; and a processor configured to control the carbon dioxide remover and the oxygen generator to discharge the filtered carbon dioxide and the residues to the outdoor together. According to the disclosure, by first removing the carbon dioxide from the room and then discharging the carbon dioxide and the residues while operating the oxygen generator, a piping installation operation by a simple piping structure as well as an efficient operation is possible.

An ambient air purification device has a filter device arranged in a filter receiving region of its housing. The filter device has a main filter element and a prefilter element, each having a circumferential frame device. A clamping force generating device is provided in the housing to exert an axial clamping force on the frame device of the main filter element resting, when mounted, at the frame device of the prefilter element. The clamping force is transmitted to the frame device of the prefilter element and presses the latter seal-tightly via a seal against a circumferential contact shoulder of the filter receiving region to seal the filter device in the filter receiving region. The frame device of the main filter element is sealed indirectly by the frame device of the prefilter element in relation to the housing and has no seal location of its own in relation to the housing.

A device for generating hydroxyl radicals having: a) at least one container suitable for containing a substance from which hydroxyl radicals are generated; b) at least one conversion unit suitable for generating hydroxyl radicals from that substance; c) a fluid conduction system that allows air to be recirculated inside the device in such a way that part of the air with a mixture of radicals circulates several times before going outside and d) a base having a power supply, a fan, an air inlet and outlet duct from the device, means for electrically supplying the various components of the device and a controller; in which the air inlet and air outlet duct include a mixing vessel before the air outlet of the device, these vessel and conversion unit are independent of each other and can be independently removed from the base.

Air purifier (1) comprising an air channel (10) extending from an inlet (11) to an outlet (12), a fan (13) configured to generate an air flow from the inlet (11) to the outlet (12) through the channel (10), purification means (14) arranged inside the channel (10) and configured to purify the air flow, main sensing means (15) configured to measure the quality of the air flow at a point of the channel (10) and a control circuit (16) in connection with the fan (13) and the main sensing means (15), where the control circuit (16) has a program configured to compare the parameters provided by the main sensing means (15) with preset target parameters and, from said comparison, adapt the air flow generated by the fan (13).

Air purifier (1) comprising an air channel (10) extending from an inlet (11) to an outlet (12), a fan (13) configured to generate an air flow from the inlet (11) to the outlet (12) through the channel (10), purification means (14) arranged inside the channel (10) and configured to purify the air flow, main sensing means (15) configured to measure the quality of the air flow at a point of the channel (10) and a control circuit (16) in connection with the fan (13) and the main sensing means (15), where the control circuit (16) has a program configured to compare the parameters provided by the main sensing means (15) with preset target parameters and, from said comparison, adapt the air flow generated by the fan (13).