A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

An air vent system includes a conduit for airflow. A stream of air is moved through the conduit.

The germ protection system for vehicles, hospitals, restaurants, schools, nursing homes, lifts and the like uses: a) A system that prevents germs: bacteria, protozoa, viruses or parasites from being breathed in vehicles or closed premises, lifts or the like, blowing or sucking air, b) An independent air installation that applies air conditioning, fed with turbofan engines, to the individual air blowing nozzles in the ceiling or backrest of the compartments of each passenger, c) An independent air installation using compressors that extracts and compresses the outside air, and apply it to the individual air blowing nozzles in the ceiling or backrest of the compartments of each passenger, d) A system that uses an individual installation to replace oxygen system in case of emergency, e) A system that is valid simultaneously for protection against germs and for breathing in case of emergency. The air is filtered, disinfected, its pressure, temperature and humidity regulated, and through some ducts it is applied to the masks, helmets, hoods, their ducts or nasal cannulas. f), A system that is coupled to the individual air supply nozzle of the passengers, using for this purpose at the end of the duct of the mask, face mask screen, diving suit or helmet.

A cleaning device includes a housing having a first end defining an inlet and an opposing second end defining an outlet. The housing defines an internal cavity. The housing has a first portion, a second portion, and an intermediate portion. The first portion defines a first chamber of the internal cavity that is connected to the inlet. The first portion has a first width. The second portion defines a second chamber of the internal cavity that is connected to the outlet. The second portion has a second width greater than the first width. The intermediate portion extends between the first portion and the second portion. The intermediate portion defines an intermediate chamber. The intermediate portion has a linear profile or a non-linear profile. The cleaning device further includes an air driver positioned within the first chamber, an ozone generator positioned within the intermediate portion, and a catalyst positioned within the second chamber.

An ion generating device (1) includes discharge electrodes (21⋅22) each having a plurality of electrically conductive members (25⋅26) which form respective tip surfaces (36⋅37). A longer dimension direction of the tip surfaces (36⋅37) is nonparallel to an air sending direction (A). This allows for efficient release of ions.

An ion generating device can include a housing having an opening, an anode and a cathode disposed within the housing and having a space between them in fluid communication with the opening, a power source having a negative terminal and a positive terminal with a first connection between the negative terminal and the anode and a second connection between the positive terminal and the cathode, and an air mover disposed to direct an air flow through the space and out of the opening.

A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

A built-in apparatus and method for treating air including a housing with an air inlet and an air outlet. An air mover positioned near the air outlet is configured to draw the air through the air inlet. The housing encloses an air treatment zone, such as including an oxidizing zone, and an ozone removal zone positioned downstream of the air treatment zone and oxidizing zone. The air treatment zone includes UV light and/or ozone that partially oxidizes the chemical contaminants in the air treatment zone. A catalyst in the oxidizing zone oxidizes elements within the air treatment zone. The ozone removal zone includes a second, different catalyst material. A UV bulb that may or may not generate ozone is positioned within or downstream of the first and/or second catalyst materials to assist catalyst oxidation and/or self-clean the apparatus.

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.

An ion generating device (1) includes: a discharge electrode (21,22), protruding from a surface of the ion generating device, for generating ions by electric discharge, the discharge electrode having (i) a tip part (31) including a brush-like electrically conductive member and (ii) a base end part (33) to which the brush-like electrically conductive member is attached, and the base end part protruding from the surface of the ion generating device for a length (L2) that is longer than a length (L1) of the tip part.