An ozone treatment system which is usable in enclosed or confined spaces for the inactivation of pathogens such as bacteria and viruses in these spaces.

The present disclosure relates to an ultraviolet (UV) sterilization device, and more specifically, to a UV sterilization device whose radiation mode and position may be changed. The UV sterilization device includes: a sterilization unit configured to be movable up to a specific position and including a UV emission unit; a driving unit configured to move the sterilization unit; and a lens assembly including at least two different types of lenses and provided on a front surface of the UV emission unit.

Some embodiments of the present disclosure disclose a novel disinfection purifier. The novel disinfection purifier includes: a purifier housing, and a purification device body and an air suction device disposed inside the purifier housing. Air passes through the purification device body by means of the air suction device and is sterilized. An air inlet is provided on a side wall of the purifier housing, or an air inlet is provided on a bottom of the purifier housing, or an air inlet is provided on a side wall of the purifier housing and a bottom of the purifier housing, and an air outlet is provided on a top of the purifier housing. The purification device body includes a disinfection portion and a filter portion sleeving an outside of the disinfection portion.

The present disclosure provides an ultraviolet (UV) sterilization apparatus that is capable of changing an emission mode and/or an emission angle. The UV sterilization apparatus includes a sterilization unit configured to be movable to a predetermined position and including a UV emitter, and a driving unit configured to move the sterilization unit.

The present disclosure provides an ultraviolet (UV) sterilization apparatus that has improved heat dissipation performance and is capable of being changed in position. The UV sterilization apparatus includes a sterilization unit configured to be movable to a predetermined position and including a UV emitter, a driving unit configured to move the sterilization unit, and a cover having a structure accommodating the sterilization unit and allowing the inside of the cover to communicate with the outside. A heat sink is provided in the cover in order to dissipate heat from the sterilization unit.

An HVAC duct ozone generator includes at least two ozone generation plate stacks, where each plate stack includes at least two independently electrically addressable plate groupings, where a primary plate grouping includes fewer ozone generation plates than a secondary plate grouping. Thus, the generator includes at least four independent ozone generation control channels to energize the primary and secondary plate groupings of each of the at least two plate stacks. The number of plates in a plate grouping may optionally be altered to reduce the ozone generation capacity of the primary plate grouping in relation to the secondary plate grouping through the movement of resistive collars between the stacked ozone generation plates.

An irradiation method includes irradiating an environment with light using one or more one ceiling-mounted light sources, where each ceiling-mounted light source has an optical axis oriented vertically downward, and wherein each ceiling-mounted light source emits a light distribution having more angle-integrated intensity in a higher angular range relative to the optical axis of the ceiling-mounted light source than in a lower angular range relative to the optical axis of the ceiling-mounted light source. A ceiling-mounted light source may include a support structure, one or more light emitters disposed on a surface of the support structure, and a reflector with a funnel-shaped reflective surface facing the support structure and expanding with increasing distance from the support structure along the optical axis. The light emitters may be ultraviolet (UV) light emitters whereby the light source is a UV ceiling-mounted light source.

A lighting assembly for an aircraft includes a visible light source generating visible light and an ultraviolet light source generating ultraviolet light. The visible light source is disposed adjacent to the ultraviolet light source. The visible light source illuminates a first illumination area with the visible light when the lighting assembly operates in a first operation mode. The ultraviolet light source illuminates a second illumination area with the ultraviolet light when the lighting assembly operates in a second mode of operation. The first illumination area substantially overlaps the second illumination area.

A sterilization and air purification control system and a mounting structure of a waste disposer include a bottom mounting housing and a disposer main machine and a sterilization module. The sterilization module includes an ozone generator driver, a negative oxygen ion generator and an exhaust mechanism. The bottom mounting housing is an accommodating housing and is detachably mounted at a bottom portion of the disposer main machine, an outer edge of the bottom mounting housing is provided with a light strip, the exhaust mechanism is fixedly connected to an inside of one side surface of the bottom mounting housing, and the exhaust mechanism communicates with inner and outer sides of the bottom mounting housing.

The present invention solves the problem of efficiently disinfecting and deodorizing indoor areas with ozone, without introducing health risks to people inside these areas. A cold plasma ozone generator generates ozone that is distributed to one or more rooms where disinfection and/or deodorization is needed. The distribution of ozone is regulated by valves controlled by a main control module collecting data from ozone concentration and IR motion detectors installed at rooms where the ozone is distributed, and other sensors in the ozone generator, and by using a schedule associating information derived from the sensory data, with dates, time slots, and desired ozone concentrations. If ozone concentrations exceed predefined levels, ozone generation and/or distribution is interrupted. When malfunctions occur, either the main control module commands the system to enter in emergency shutdown or lockdown, or a local control module or the ozone generator take control of the ozone generation and distribution.