The present disclosure relates to a method for sanitization of a surface by emission of a plurality of sanitization wavelengths, and to a device for implementing the method. The method comprises emitting light using first LEDs configured to emit the sanitization wavelengths, receiving, by a circuit, a feedback signal from a light sensor indicating a light intensity received by the light sensor during the light emission, and controlling the first LEDs with the circuit based on the feedback signal.

A system and method are defined for disinfection of the structure, contents and included air in large volume enclosures such as mass transit vehicles, transport containers, warehouses, and retail sales or gathering locations to reduce the risk of transmission of contagious biological agents, particularly bacterial and viral agents. Various embodiments provide effective sanitizing actions accommodating differing local circumstances and obstacles. Safety interlock mechanisms, procedural steps and communications means ensure safe operations around humans and animals. The system includes a method for measuring environmental conditions to ensure a safe re-entry state.

A vehicular sanitization control device includes a rechargeable internal power source, a deep ultraviolet light source, a first display light source configured to display an operating state of the deep ultraviolet light source, a second display light source configured to display a state of charge of the internal power source, and a control unit configured to control a power supplied to the deep ultraviolet light source, a charging operation of the internal power source, and displays of the first display light source and the second display light source, respectively.

Vehicle comprising a plurality of walls defining a housing and a sanitization system for said housing comprising diffuser means, a source of sanitizing fluid, ventilation means and an electronic unit, this being configured to allow the passage of the sanitizing fluid from the source to the diffuser means, the diffuser means nebulizing this fluid inside said housing, the electronic unit being configured to activate the ventilation means to allow the airing of said housing following the nebulization of the sanitizing fluid inside the housing.

An ozone treatment device includes an ozone destruct module and an ozone generator mounted within a housing. The ozone destruct module and the ozone generator are mounted between corresponding air inlets and air outlets formed in the housing. The ozone treatment device also includes a controller mounted to the housing. The controller is configured to generate ozone with the ozone generator for a first time period and to automatically destruct ozone with the ozone destruct module for a second time period following the first time period. In certain implementations the treatment device includes an input device for receiving an operator input. In such cases the controller can determine the first and second time periods based on the operator input.

A process and apparatus for disinfection of spaces using a disinfecting liquid droplet spray atomization are described, in which an electric fan 107 is used to dispense the atomization from an atomization chamber 104 via venture outlets 106 into the space to be disinfected. The operation of the electric fan 107 is modulated in a cycle having a first phase in which the fan is operated at full speed and a second phase at which the fan is operated at a randomly selected speed to vary the rate of dispensing into the space in order to improve the dispersal of the atomized droplets in the space and hence the efficacy of disinfection.

Implementations of the disclosed subject matter provide a method of receiving, at an actuated mobile device, at least one dosage level for a predetermined area, where the at least one dosage level is based on a first dosage of ultraviolet (UV) light to be output from at least one light source for at least a portion of the predetermined area. The method may include moving the actuated mobile device in a path within the predetermined area and outputting the UV light from the at least one light source onto one or more first surfaces based on the received at least one dosage level. The method may include moving the actuated mobile device within the path, and outputting the UV light onto one or more second surfaces based on the received at least one dosage level.

A method for sterilizing viruses comprises generating a beam having radiating energy therein at a predetermined frequency for generating mechanical eigen-vibrations in a spherical virus to destroy the spherical virus and a predetermined cartesian beam intensity for imparting transverse shear forces to an icosahedral lattice structure of the spherical virus to destroy the icosahedral lattice structure of the spherical virus using beam generation circuitry. A resonance frequency of the spherical virus for inducing the mechanical eigen-vibrations in the spherical virus is determined based upon a size, geometry, and protein material of the spherical virus using a predetermined three-dimensional acoustical model of mechanical vibrations within the spherical virus. The beam generation at the predetermined frequency and the predetermined cartesian beam intensity is controlled using a controller responsive to the determined resonance frequency. The predetermined frequency equals the resonance frequency of the spherical virus. The beam on is radiated a predetermined area to destroy the spherical virus at the predetermined area using radiating circuitry. The mechanical eigen-vibrations at the resonance frequency of the spherical virus determined by the predetermined three-dimensional acoustical model are induced within the spherical virus to destroy the spherical virus responsive to the predetermined frequency. The transverse shear forces are imparted to the icosahedral lattice structure of the spherical virus to destroy the icosahedral lattice structure of the spherical virus.

Sanitizing surfaces in a location related to aircraft. There are multiple rows of seats. A sanitization device includes a mobile body configured to travel along the aisle of the aircraft. An arm extends from the sanitization device laterally from the mobile body across the seats, and a source of UV radiation mounted on the sanitization device is directed across the seats exposing surfaces in the passenger area to UV radiation. There can be a unit hand operated, pushed down the aisle by hand, wings deployed and stowed by hand. There can be a plug in version with long extension cords that a human can keep from tangling. The operator can be protected with skin and eye protective gear and there can be remote control by an operator standing nearby.

Aspects described herein include methods, apparatuses, and non-transitory computer-readable storage mediums for operating a germicidal lighting device. A target environment is monitored for one or more people. In response to the monitoring indicating the presence of one or more people, the lighting device is caused to operate in an occupied target environment operating mode including causing the lighting device to emit far-UVC light at a given intensity into the target environment for a first period of time; and, in response to expiry of the first period of time, causing the lighting device to emit far-UVC light at a different intensity to the given intensity into the target environment for a second period of time.