An air purification and microbiological sanitization system for a heating, ventilation, and air conditioning (HVAC) system of railway vehicle includes a casing with a chamber having an inlet opening for inflow of air into the chamber and an outlet opening for outflow of air from the chamber, a plurality of light-emitting diodes (LEDs) for generating germicidal ultraviolet radiation in the chamber, an ionizer device for ionizing air in the chamber, an electronic control unit for controlling the HVAC system, and an air quality sensor for measuring concentration of particulate matter and of carbon dioxide in the air. The electronic control unit controls the radiant power of at least one LED as a function of a measurement signal transmitted by the air quality sensor.

To realize a device and method for controlling a scent to be output on the basis of various types of information acquired by an information acquisition unit. The device includes a scent output control unit that executes a scent output control, and a scent output unit that executes a scent output under the control of the scent output control unit, in which the scent output control unit selects a scent to be output according to input information from the information acquisition unit, and outputs the selected scent via the scent output unit. The scent output control unit selects information to be used for scent selection from the input information according to a preset mode, and selects a scent to be output according to the selected input information. For example, the control of the scent to be output is executed on the basis of a user utterance or information of an area, a facility, or the like.

An apparatus for treating air includes a housing with an air inlet and an air outlet, the housing enclosing an air treatment zone and an ozone removal zone, wherein the ozone removal zone is positioned downstream of the air treatment zone with respect to a flow direction of the air being treated, an ultraviolet (UV) light source in the air treatment zone configured to generate ozone from the air, wherein the UV light from the UV light source and the ozone generated by the UV light source treat the air in the air treatment zone, catalyst in the ozone removal zone that removes at least a portion of the ozone generated by the UV light source, and an air mover positioned near the air outlet configured to draw the air through the air inlet into the air treatment zone from outside the housing.

An inlet air chilling system for use with a gas turbine engine is disclosed. The inlet air chilling system may include an inlet air filter house, an air chilling/heating coil positioned within the inlet air filter house, and an energy recovery/heating coil positioned downstream of the air chilling/heating coil within the inlet air filter house and in communication with the air chilling/heating coil.

An air pollution reacting system in a vehicle comprises at least one air pollution measuring device installed in a vehicle and configured to measure an air pollution level of ambient air; and an air pollution reacting device configured to take at least one action in response to an air pollution level determined by the air pollution measuring device.

Disclosed is an aroma-diffusing cartridge for a vehicle wherein the structures of the cartridge and a carrier of an aroma are so optimized that the capacity of the carrier for carrying the aroma may become excellent together with stable and continuous performance of diffusing the aroma. An aroma-diffusing cartridge for a vehicle includes: a cartridge body having one side formed with a pair of air holes for receiving and discharging air, and an internal space for circulating the received air; and at least two carriers put in the cartridge body with different duration of keeping an aroma. Thus, the capacity of the carriers for carrying an aroma is excellent together with stable and continuous performance of diffusing the aroma in a limited space, so that the air in the vehicle may be kept agreeable for a long time.

The present invention relates to a vehicle air conditioner device, comprising: an air purifying unit for regulating air quality inside the vehicle; an inside air quality acquiring unit for acquiring air quality inside the vehicle; an outside air quality acquiring unit for acquiring air quality outside the vehicle; and a display unit for displaying information related to the acquired air quality inside the vehicle and information related to the acquired air quality outside the vehicle.

A diffuser includes a clip that attaches to a vent of a vehicle air conditioning system. The diffuser also includes a hollow scented body that emits a fragrance. The hollow scented body extends along a longitudinal axis and defines a cavity. The hollow scented body is mounted to the clip such that airflow from the vent is in a direction other than parallel to the longitudinal axis of the hollow scented body when the diffuser is attached to the vent.

A component for a vehicle interior configured to dispense scent in a vehicle interior is disclosed. The component may comprise a scent-dispensing apparatus comprising a module configured for at least one scent-dispensing cartridge (removable/replaceable) containing scent media. An actuator may be configured to operate the module in a bypass mode or for selection/actuation of a cartridge. A selected cartridge may be actuated from a sealed state to prevent airflow through scent media to an unsealed state to allow airflow across/through scent media and into the vehicle interior. The actuator may comprise a mechanism (e.g. slider, cam mechanism); each cartridge may comprise a valve mechanism actuated by the actuator; each mechanism may comprise a spring. The module may comprise a fan to provide airflow. The component may provide a user interface. The component may comprise a console, overhead console, floor console, center console, etc.

An ultraviolet (UV) light shield system includes multiple UV lamps mounted within an internal cabin of a vehicle. The UV lamps are positioned to emit UV light in fields of illumination that extend along sides of passenger seats disposed within the internal cabin. Two adjacent fields of illumination are spaced apart to define a protection zone for a passenger sitting on one of the passenger seats.