A system for decontaminating/neutralizing breathable air and surfaces in an occupied enclosed space, i.e., building, aircraft, vehicle or greenhouse, includes mounting an atmospheric hydroxyl radical generator along an inside surface of the atmospheric hydroxyl radical generator having respective opposite air inlets and air outlets. The hydroxyl radical generator includes a polygonal housing supporting a plurality of spaced crystal-spliced UV optics, which are tubular, medical grade pure quartz optics to emit/irradiate ultraviolet in the nanometer wavelength/ultraviolet spectrum of between 100 and 400 nanometers for deactivating and neutralizing atmospheric chemicals and pathogens in breathable air and surfaces. The hydroxyl radicals contact the walls of the reaction chamber housing. The hydroxyl radicals become created and excited to react quickly with impurities including VOC, virus, bacteria and fungi, rendering them inactivated and neutral. The breathable air passes through the polygonal housing and is decontaminated and neutralized of impurities before entering the occupied enclosed space.

An ultraviolet irradiation apparatus according to an embodiment includes a reaction tank including an inlet port for introducing to-be-treated water, and a discharge port for discharging to-be-treated water after treatment, a first ultraviolet lamp, and an ultraviolet monitor including an ultraviolet sensor. The first ultraviolet lamp is accommodated in a first protection tube including both end portions fixed in the reaction tank. The ultraviolet monitor is accommodated in a second protection tube, the second protection tube is disposed in parallel to the first protection tube, and both end portions of the second protection tube are fixed in the reaction tank.

A desktop personal breathing space UV-C air sterilizer in which sterilized air from the top of the sterilizer is adjustably directed to the space from which an individual inhales, and in which ai exhaled by the individual air is mixed with air from the general area of the individual and drawn into the bottom of the UV-C air sterilizer across a horizontally disposed UV-C source, to provide a directional stream of sterilized air to the personal breathing space of the individual. Methods are disclosed.

A surgical treatment system for contaminated air streams having particulate contamination, polar contamination and/or nonpolar contamination in the gas or vapor stream. A surgical smoke plume treatment system and method provide or define a multi-stage treatment process that mechanically filters the air stream, followed by nonpolar decontamination and then polar decontamination or treatment. The system may be used stand alone or incorporated and used with other surgical instruments or incorporated into an air handler adapted to decontaminate an air stream. A desiccant may optionally be used to remove water from the air stream.

An eyeglass device for inactivating a pathogen includes an eyeglass frame connectable with a face of a person and a pair of lenses connected with the eyeglass frame. The pair of lenses includes a composition that blocks some wavelengths of beams of ultraviolet light. The eyeglass device further includes a light affixed to the eyeglass frame and that emits an ultraviolet light beam having a wavelength of about 205 nm to about 225 nm and does not emit an ultraviolet light beam having a wavelength of about 254 nm. Methods of inactivating a pathogen are also described.

An air treatment device includes: a casing having an inlet through which air is drawn, and an outlet out of which the air drawn through the inlet is blown; a blade configured to adjust a direction of the air blown out of the outlet; and a generator configured to generate an antimicrobial element that sanitizes the blade. The blade has a first surface, and a second surface opposite to the first surface. The blade is shiftable between a first position in which the antimicrobial element is provided to the first surface and a second position in which the antimicrobial element is provided to the second surface.

An apparatus for inactivating bioaerosol, comprising an enclosure having lumen walls forming a lumen, said lumen having a lumen input opening and a lumen output opening; a ventilator arranged for forcing an air flow through said lumen; in a cleaning section of said lumen, a source of ultraviolet light arranged to irradiate with ultraviolet light all the air passing through said lumen along a length of said cleaning section; an output muffler arranged for reducing a noise of said air flow in output of said lumen output opening; and a downstream turn section of said lumen, downstream said cleaning section of said lumen, arranged for changing a direction of said air flow such that no ultraviolet light in said cleaning section of said lumen is detectable at said lumen output opening.

An eyeglass device for inactivating a pathogen includes an eyeglass frame connectable with a face of a person and a pair of lenses connected with the eyeglass frame. The pair of lenses includes a composition that blocks some wavelengths of beams of ultraviolet light. The eyeglass device further includes a light affixed to the eyeglass frame and that emits an ultraviolet light beam having a wavelength of about 205 nm to about 225 nm and does not emit an ultraviolet light beam having a wavelength of about 254 nm. Methods of inactivating a pathogen are also described.

According to one aspect, a system for ultraviolet (UV) disinfection may include a switch and a lamp fixture. The lamp fixture may include a UV lamp and a UV controller. The switch may be configured to receive a command to engage in a UV disinfection mode. The UV controller may be configured to receive the command to engage in the UV disinfection mode from the switch via a switched line. The UV controller may activate the UV lamp based on the received command to engage in the UV disinfection mode.

An improved portable scent warmer having a modular or compartmentalized housing holding a scented member, a heating element imparting heat to the scented member to release its fragrance, a fan element for direct the dispersion of the fragrance, a input device for selectively controlling and actuating the heating element; a rotatable cover adjoined to the housing; and at least one power supply means for powering the heating element.