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.

A selectively scent infusible face masking assembly for filtering and scenting air includes a facemask, a pocket panel, and a plurality of pads. The facemask is selectively positionable over a nose and mouth of a user so that the facemask is removably engaged to a head of the user. The facemask filters particulates from air passing through the facemask. The pocket panel has opposing edges and a bottom edge that are engaged to the facemask to define a pouch. Each pad is infused with a respective aroma compound so that the plurality of pads comprises pads that are infused with a variety of aroma compounds. The pads are sized complementarily to the pouch. A respective pad is selectively insertable into the pouch so that the respective pad releases an associated aroma compound into the air passing through the facemask.

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.

A portable disinfecting apparatus with effective disinfection properties against pathogens, such as bacteria, fungi, and viruses is disclosed. Embodiments of the portable disinfecting apparatus include a portable sterilization box having at least one path configured to receive drawn air and to irradiate the drawn air with UV radiation along the path to produce disinfected air. The path may be provided using baffles that are configured, for example, in a serpentine or spiral configuration to provide a non-linear flow path for the air. The UV light sources, such as UV LEDs may be mounted on the baffles. Embodiments of the apparatus include an intake tube connected to the sterilization box for drawing air into the sterilization box from a point high within the room that is to be disinfected. The disinfected air is released from the sterilization box a point lower in the room. As the air is slightly heated during the disinfection process, drawing in air from high in the room and releasing the disinfected air lower in the room provides circulation and mixing of the disinfected air.

An air disinfection device includes a shell having entry and exhaust ports, a power supply installed above the shell, and a dust collecting cylinder installed on the shell, connected to a negative electrode of the power supply, and having air inlet and outlet. The air inlet and the air outlet are communicated with the entry port and the exhaust port, respectively. The conductive rod has one end installed above the shell and connected to a positive electrode of the power supply, and the other end located in the dust collecting cylinder and close to the air inlet. An arrangement direction of the conductive rod is consistent with an axis direction of the dust collecting cylinder. The power supply provides high-voltage current to the conductive rod to form a symmetrically distributed high-voltage electrostatic field inside the dust collecting cylinder to sterilize and disinfect air passing through the dust collecting cylinder.

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.

An ultraviolet (UV) germicidal irradiation system comprising: a light emitting diode (LED) disinfecting face mask comprising: a flexible mask body having a front surface and a back surface; a flexible printed circuitry (FPC) sheet disposed within the flexible mask body, the FPC sheet having a plurality of LEDs adapted to emit UV light, the plurality of LEDs facing the front surface; a vibration sensor electrically connected to the FPC sheet, the vibration sensor being adapted to detect vibrations; a UV-reflective layer disposed behind the FPC sheet, the UV-reflective layer being adapted to reflect the UV light; and a light diffusion layer disposed in front of the FPC sheet, the light diffusion layer being adapted to scatter the UV light; and a control module comprising: a central processing unit (CPU), an LED driver, and a power source; the CPU being in electrical communication with the LED driver and the vibration sensor.

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.

A method of recycling an saturated adsorbent (3) of a filter module (1) of an industrial process plant (15), wherein a first process (17) includes removing the saturated adsorbent (3) from the filter module (1), a fourth process (20) includes washing and reactivating the saturated adsorbent, a fifth process (21) includes drying and packing the reactivated adsorbent in airtight containers, and a seventh process (23) includes replacing the saturated adsorbent by reactivated adsorbent in the filter module (1).

Air purification devices include an air inlet and outlet, upstream and downstream sections in air flow communication with the air inlet and outlet and a filter removably positioned between the upstream and downstream sections to filter at least pathogens from air being passed through the filter. One or more ultraviolet (UV) illuminating sources may be positioned in at least the upstream section proximate the filter to illuminate at least an upstream surface of the filter with sufficient UV radiation to kill viable pathogens that accumulate on the filter. One or more ozone generating sources may be positioned to generate ozone in sufficient concentrations to kill viable pathogens proximate the device. The UV illuminating sources and ozone generating sources may be positioned to provide a predetermined pressure drop across the sources and air flow pattern proximate the filter, and enable the filter to be removed without handling the sources.