A device for creating an air curtain protecting a human respiratory system is described. The device can be a hat and/or collar worn by a person and includes a constant or on demand flow of air that passes across a person's face to create an air curtain. The flow of air moving across the face blows airborne viruses away from a person's eyes, nose, and mouth. Another concept includes a glove that is outfitted with a device that purifies the glove. A battery could be mounted on a person's wrist or forearm with a small wire running down the glove. Likewise, the glove could be outfitted with UV light embedded on the surface or just underneath a permeable/top layer of the glove. Still further, the glove can carry electrical pulses aimed to kill viruses every ten seconds or so.

A system that can selectively activate or deactivate one or more ultra-violet light sources to sanitize a portion of a vehicle. The system can include a vehicle that has a vehicle door. The system can include one or more sensors that can be configured to detect whether the vehicle door is open or closed. In response to detecting that the vehicle door is open, the system can cause the one or more ultra-violet light sources to be activated, whereby ultra-violet light is emitted by the one or more ultra-violet light sources with respect to at least a portion of the vehicle. In some instances, the ultra-violet light can be emitted across the door frame of an open door. In some instances, the ultra-violet light can be emitted within at least a portion of the vehicle cabin.

A computer includes a processor and a memory, the memory storing instructions executable by the processor to heat a passenger cabin of a vehicle, suppress a climate control limiter that prevents an air blower of a climate control component from operating when an engine coolant temperature exceeds a temperature threshold, and actuate a motor on an air pump to introduce air external to the vehicle to the passenger cabin.

Embodiments of a controlled odor emission system and device include an odor presentation port tube and an odor tray securely retained against a platform, a valve housing securable to the platform adjacent the tray, a valve secured within the valve housing and an actuator for moving the valve. By controlling movement of the valve, precise amounts of an odor can be dispensed under programmatic control for training animals. Further, a system incorporating a central control unit and a reward dispenser in communication with an odor emission device to facilitate animal training.

A method of inactivating one or more pathogens in an environment. The method includes providing light from at least one lighting element of a lighting device installed in the environment, the at least one lighting element configured to provide light toward a target area in the environment, the provided light having at least a pathogen-inactivating first component in a first range of wavelengths of 400 nanometers to 420 nanometers. The pathogen-inactivating first component of light produces an irradiance of at least 0.01 mW/cm.sup.2 as measured at a surface in the target area that is unshielded from the lighting device and located at a distance of 1.5 meters from an external-most luminous surface of the lighting device. Providing the light causes the one or more pathogens to be inactivated.

A trash container includes a container unit and an ultrasonic deodorizing device. The container unit includes a container having a top opening and a container cavity, and a container cover being moved between an opened position and a closed position. The ultrasonic deodorizing device includes a deodorizing carrier supported above the top opening of the container body for containing deodorant in liquid form, an ultrasonic nozzle operatively coupled at the deodorizing carrier for downwardly injecting the deodorant in an atomization manner below the top opening of the container body, and a nozzle controller configured to control and activate the ultrasonic nozzle.

A self-cleaning air conduit for deactivating and decomposing chemical and life based airborne contamination. The conduit contains ultraviolet (UV) sources that irradiate semi UV reflective surfaces within the conduit. Said conduit is positioned in the path of pre and post filters. The internal surfaces of the conduit and components cast be altered by chemical and or mechanical means to maximize surfaces area and adhesion of photocatalytic coatings. Multiple coated panels within the conduit can be configured parallel to the air flow and positioned to enhancer the interaction of UV radiation with airborne contamination and photocatalytic produced free radical. Microprocessor based electronics connected to the conduit, provide power for key internal and ancillary componence necessary to control and monitor air velocity, UV radiation levels and airborne contamination levels. Pre and post filters can be positioned to retain VOC and deactivated life based airborne contamination and inert mineral based contamination.

An aspirating smoke detection unit 1 for limiting the spread of airborne contaminants. The aspirating smoke detection unit 1 includes a smoke detector 5 for detecting the presence of smoke particles suspended in air from a monitored region; an ozone generator 7 for producing ozone from oxygen contained in air from the monitored region 20; and an ionizer 8 for ionizing air molecules within air from the monitored region 20. A methods of reducing the spread of airborne contaminants within a monitored region 20 using the aspirating smoke detection unit 1.

A sanitization system for a space includes an ultraviolet (UV) light source configured to emit UV light. The system includes a sensor device configured to sense positions of a plurality of individuals within the space. The system includes a controller in communication with the sensor device. The controller is configured to monitor the positions of the plurality of individuals, determine, based on the positions of the plurality of individuals, that two or more individuals are less than a threshold distance from each other, and in response to determining that the two or more individuals are less than a threshold distance from each other, control the UV light source to emit UV light towards a proximate region between the two or more individuals.

A sanitization system for a space includes an ultraviolet (UV) light source configured to emit UV light towards a UV light zone at a UV light level, a motion sensor device configured to sense movements of one or more individuals, and a controller. The controller is configured to determine, based on the movements of the one or more individuals, an exposure parameter value for each of the one or more individuals in the UV light zone, determine that the value of the exposure parameter determined for at least one of the one or more individuals exceeds a threshold value, and, responsive to determining that the value of the exposure parameter determined for the at least one of the one or more individuals exceeds the threshold value, cause the UV light source to reduce the UV light level of the UV light emitted towards the UV light zone.