Provided is an air cleaner, and more specifically, to an air cleaner in which a filter part using a photocatalyst is formed in a module type to facilitate replacement and cleaning and which includes an insert fan which is disposed inward from a suction port of a casing forming an exterior and including the suction port disposed at one side and a discharge port disposed at the other side, and suctions ambient air, a driving motor provided to be axially detachably coupled to the insert fan in a direction from the discharge port, and a suction unit fixing part in which an accommodation space, into which the insert fan and the driving motor are fixedly inserted in the direction from the suction port toward the discharge port and which is finished by inserting a cover member in the direction from the discharge port.

Described herein are heterogeneous materials comprising a mixture of a first n-type semiconductor and a second n-type semiconductor. The first n-type semiconductor may be a single or plural phase TiO.sub.2 material. The second n-type semiconductor includes a metal titanate and/or a noble metal. Upon activation with ultraviolet light, the photocatalytic material mixtures described herein efficiently decompose volatile chemical compounds. Furthermore, the photocatalytic materials disclosed herein are observably more stable, relative to known semiconductor materials, to inactivation by deposition.

An air pollution prevention device applied for a baby carriage includes a sealing cover, a filtration cleaner, a gas detection module and an intelligent control and process device. The sealing cover is hooded on the baby carriage for forming a sealed space. The filtration cleaner penetrates the sealing cover form the outside of the baby carriage for introducing an outside air into the sealed space of the baby carriage and discharging an air pollution source out of the sealed space. The gas detection module detects the air pollution source and outputs gas detection data. The intelligent control and process device receives and compares the gas detection data and controls an enablement of a gas guider of the filtration cleaner for filtering and exchanging the air pollution source in the sealed space so as to generate a clean air.

Disclosed is an internal circulation type lampblack purifier. The internal circulation type lampblack purifier comprises a shell, an air inlet, an air outlet, an air inlet channel, an air outlet channel, a fan device, a mechanical grease separator, a gas purification device and a cooling device, wherein the air inlet and the air outlet are arranged on the shell; the mechanical grease separator is arranged at the air inlet or in the air inlet channel; and the cooling device is arranged at the air outlet and comprises a water supply pipe, water spray guide plates, a water mist baffle plate, a spray pipe and a water receiving tank, the spray pipe communicates with the water supply pipe, spray nozzles are arranged on the spray pipe and face the water spray guide plates, the water receiving tank is located below the water spray guide plates, and the water mist baffle plate is provided with blades at certain gaps. According to the internal circulation type lampblack purifier, the cooling device is arranged, so that the temperature of discharged gas is effectively reduced, high-temperature water vapor in the discharged gas is eliminated, and the influence of the high-temperature water vapor on the indoor environment is prevented.

An air cleaning apparatus including a housing that includes one or more intake vents and one or more exhaust vents. The air cleaning apparatus also can include an air chamber within the housing. The air cleaning apparatus additionally can include one or more disinfecting lights directed toward the air chamber. The air cleaning apparatus further can include a fan operable to perform moving air from outside the housing in a first direction through the one or more intake vents and into the air chamber to be exposed to the one or more disinfecting lights, and, after the air is exposed within the air chamber to the one or more disinfecting lights, moving the air from of the air chamber through the one or more exhaust vents in one or more second directions that are other than approximately parallel to the first direction. The air cleaning apparatus additionally can include a vortex reflector positioned adjacent to the air chamber and across from the one or more disinfecting lights. The air cleaning apparatus further can include vortex-inducing walls within the air chamber. Other embodiments are described.

An emission reduction device for cooking fumes produced from smoking, frying and roasting is provided, which includes a purifying-tank shell. One end of the purifying-tank shell is provided with an air inlet and other end of the purifying-tank shell is provided with an air outlet. The device further includes a nebulizer, an ultrasonic coagulating unit, and an electrostatic deposition unit, which are sequentially arranged in the purifying-tank shell from the air inlet to the air outlet. A box body is connected to the air outlet of the purifying-tank shell, the box body is provided with a photocatalytic oxidation unit, a plasma catalytic oxidation assembly and an end filter unit therein. An exhaust port is installed on a rear side of the box body. Two sides of the ultrasonic coagulating unit are each provided with a flow rectifier which is longitudinally and slidably arranged in the purifying-tank shell.

An air conditioning device is disclosed. The present air conditioning device comprises: a photocatalytic filter including a space through which air can pass and having a transition metal oxide formed in a nanotube form on the surface thereof, the transition metal oxide removing gases included in the air and including at least one of TiO.sub.2, ZnO, NiO, and WO.sub.3; and a light source for emitting light to the photocatalytic filter.

A gas treatment device that treats a gas to be treated, including oxygen, introduced at a gas inlet and that exhausts a treated gas at a gas outlet, the gas treatment device includes: a gas channel that communicates the gas inlet with the gas outlet; a blower that allows the gas to be treated to flow from the gas inlet to the gas outlet; an ultraviolet light source that is disposed in the gas channel and radiates ultraviolet light having a wavelength of 230 nm or less; a filter that is disposed at a side at which the gas outlet is located from the ultraviolet light source in the gas channel, and that adsorbs at least ozone; and a control unit that controls the blower to operate, wherein the control unit controls the blower to start a blowing operation after the ultraviolet light source starts radiating the ultraviolet light.

The present invention discloses an air purifier with a photocatalyst, including an air intake structure and an air discharge structure. The air intake structure is provided with a purification cavity, and a connection seat is provided in the purification cavity and is provided with a photocatalyst purification member detachably mounted to the connection seat. The air purifier with a photocatalyst of the present invention has a simple structure and a rational design, and demounting and mounting operations of photocatalyst purification member are simple, easy and quick, thereby effectively improving the demounting and mounting efficiency of the photocatalyst purification member.

A lamellar arrangement for shielding radiation acting on a fluid which flows through an interior of a device, comprises two or more lamellae aligned substantially parallel to one another and respectively defining an intermediate space between them, wherein at least one subset of the lamellae is respectively subdivided into at least three lamella sections comprising a first lamella section, a second lamella section next to the first lamella section and a third lamella section next to the second lamella section. The first lamella section and the second lamella section in this case enclose a first angle between them, and the second lamella section and the third lamella section enclose a second angle between them. The first angle has a magnitude in a range of from 20° to 45° and the second angle has a magnitude in a range of from 20° to 45°.