An internal air adjustment device (30) includes an internal-side passage (70) and an internal-side treatment unit (152). The internal-side separator (61) in the internal-side passage (70) separates return air from internal air. The composition of the return air differs from the composition of the internal air. The internal-side passage (70) supplies the return air into a storage (1). The internal-side treatment unit (152) decomposes ethylene in air that flows in the internal-side passage (70). Therefore, the concentration of ethylene of the return air is lower than the concentration of ethylene of the internal air.

An air mover for forcing air through the system, a pre-treating stage with a particulate filter for removing larger contaminants from the air and an antimicrobial (e.g., copper and silver) filter for killing or damaging microorganisms, a UV chamber including an ultraviolet lamp that emits radiation and a catalytic (e.g., TiO.sub.2-coated) device and a reflective (e.g., mirror-finish anodized aluminum) lining for amplifying the UV radiation for killing microorganisms, a post-UV stage including a VOC-reducing (e.g., activated-charcoal) filter for removing odors and VOCs from the air, and optionally a supply of a surface disinfectant (e.g., ClO.sub.2). In example embodiments, the UV lamps and VOC filters are selected and configured for controlling microbial pathogens, and in other example embodiments they are selected and configured for removing ethylene from the air.

An engine emission treatment system incudes at least one out of an air inlet dust removal system (101), a tail gas dust removal system (102), and a tail gas ozone purification system. The tail gas dust removal system (102) has an inlet of the tail gas dust removal system, an outlet of the tail gas dust removal system, and a tail gas electric field device (1021). The tail gas ozone purification system has a reaction field (202), used for mixing an ozone stream and a tail gas stream for reaction. The engine emission treatment system may effectively treat engine emissions, so as to make the engine emissions cleaner.

The present disclosure relates to a surface comprising a photocatalyst affixed thereupon via an adhesive layer and methods for affixing the photocatalyst to the surface via the adhesive layer. The present disclosure also provides a purifier comprising the photocatalyst affixed surface and a purifier system comprising such purifier.

A gas processing device includes: a casing that includes a first end having a first opening region constituting an intake port, a second end having a second opening region constituting an exhaust port, and a main body portion on the inside of which is formed a hollow portion; a discharge lamp that has a tube body which is disposed in the hollow portion and which has a shape extending in the first direction, a first electrode, and a second electrode, the discharge lamp that emits ultraviolet rays from the tube body; a power supply unit arranged outside the casing; and a first power supply line and a second power supply line that are wired so as to pass through a side closer to the first end than the main body portion, and that electrically connect the power supply unit to the first electrode and the second electrode.

An air management system of a vehicle having a conditioned area includes at least one duct defining a flow path for delivering air to the conditioned area and a filter arranged within the at least one duct upstream from the conditioned area. The filter includes a filter media having at least one filter media layer including a plurality of fibers. A coating is applied to at least a portion of the plurality of fibers and the coating is operable to deactivate a microbe arranged in contact with the coating.

An electronic microbicidal air filter is provided as an ambient air filter in aeration supports or ventilation grids and as an air filter for PPE protection masks. The filter includes an UVC luminaire (2), a power module (3), activation sensors (4), internal structure (5) with walls defining filtering chambers (6) with exposure membranes (7) sandwiched between the chambers (6) under the luminaire (2), so that the chambers (6) determine a winding zigzag path for the air that passes therethrough, while the particles carried by the air are irradiated by the luminaire (2) directly. The functional elements in the internal structure (5) of chambers (6) are integrated in an encapsulation (9) that surrounds the external part of the assembly and defines a sealed space for the functional and support elements at the ends of the structure (5).

An apparatus for treating contaminated fluid has a UV lamp within an elongate housing, typically rectangular shaped. Deflector baffles within the housing create a meandering pathway perpendicular to the lamp for exposing the fluid to the UV light along the entire length of the pathway. Fins create multiple channels in the pathway to substantially increase internal surface area contact with the fluid. A photocatalytic coating on the baffles, fins and internal surfaces of the housing is maintained within a pre-set radial distance, preferably within about 75 mm, from the lamp for optimal creation of a photocatalytic reactant. The fluid flowing along the pathway, including channels, is also maintained in close proximity to the lamp and has adequate time for exposure to the ultraviolet light and photocatalytic reactant for treatment before exiting the housing. Baffles and fins are removably positioned within the housing for convenient maintenance, pathway length alteration or accommodating fluid volume flow adjustment, with little or no housing re-sizing. This apparatus is an affordable and compact environmental protection device capable of “air quality refinement”, especially for building ventilation systems, by mitigating the spread of harmful pathogens and/or toxic chemicals.

Systems and methods that utilize both UVA and UVC lamps to clean and disinfect a cabin filter of a vehicle, thereby preventing the cabin filter from becoming fouled for an extended period of time. By performing both gas filtration and cabin filter disinfection functions, these systems and methods mitigate: (1) the pressure drop (or flow reduction) experienced; (2) the smell breakthrough when the gas adsorbent becomes saturated; and (3) the presence of microbial growth. This is accomplished by the sequential application of UVC and UVA radiation to the cabin filter, with the UVC radiation being applied for a period of time upon vehicle startup to neutralize bacteria and fungus present in the cabin filter and the UVA radiation subsequently being applied continuously to filter the gas flowing through the cabin filter. A photocatalyst may be added to the cabin filter itself to enhance disinfection and gas filtration.

A cleaning device includes a housing, an air driver, an ozone generator, and a catalyst. The housing defines an internal cavity. The housing has a first portion defining a first chamber of the internal cavity, a second portion defining a second chamber of the internal cavity, and an intermediate portion extending between the first portion and the second portion, and defining an intermediate chamber. The first chamber is connected to an inlet of the housing. The first portion having a first width. The second chamber is connected to an outlet of the housing. The second portion has a second width greater than the first width. The first portion, the intermediate portion, and the second portion are linearly aligned along a longitudinal axis of the housing. The air driver is positioned within the first chamber. The ozone generator is positioned within the intermediate chamber. The catalyst is positioned within the second chamber.