A hands-free object sanitization system is provided where multiple UV-C LEDs are provided around a work area (e.g., a surface) in order to sterilize contaminants located on objects placed in that work area (e.g., virus and/or bacteria). Objects may travel through the work area without direct human intervention so that a hands-free sanitization system is provided. For example, objects may be dropped through a working area so that gravity provides a transport force through that working area.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Sound suppression compartments may be placed around a UV-C generating device inlet and/or a device outlet to reduce sound from the UV-C generating device. Human perceivable (e.g., audible, tactile, and/or visual) notifications may be utilized to provide notification of different modes of operation and/or different efficacy levels (e.g., percent ranges of inactivation of a particular or multiple particular viruses, bacteria, spores, etc.

A UV-C Amplifier is provided where multiple UV-C LEDs are provided around a work area (e.g., a hollow cylinder) in order to sterilize contaminants in that work area (e.g., virus and/or bacteria) to provide a sterilization device for substances in, or flowing through, the work area. The sterilization device have, for example, mating structures so that the device may be mated with other devices such as, for example, a ventilator or face mask. The sterilization device may be portable and may include one or more rechargeable batteries so that the device can sterilize material flowing into, through, and/or out of one or more devices such as a ventilator or face mask.

An air sanitization device is provided where a UV-C generator applied UV-C to infected air for sterilization and then the sterilized air is used to cool heat sinks attached to the UV-C. One or more fans can be utilized to push and/or pull air through the device. For example, the fans may create airflow in the device above, for example 200 liters per minute or above 400 liters per minute. Accordingly, a closed air system with a fan may push air through a UV-C generation device to sanitize air and the sanitized air may be pushed over a heat sink attached to the UV-C generation device and then pushed out of the closed air system into the environment. Thus, sanitized air may be circulated by the fan while being air cooled in a manner that does not circulate contaminated air.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Air may be pushed out of an annulus at the end of an air inactivation device and an annulus outlet cone may be provided in the middle of the annulus to assist, for example, inactivated air in moving smoothly away from the device and reduce pressure at the annulus exit. A UV-C inactivation tube may have UV-C reflective structures at each end to permit air to flow through the tube while reflecting UV-C light back into the tube.

An array of high intensity UVC LEDs usable for in vivo reduction of patient viral load or ex vivo sterilization.

A sanitizer system has an ultraviolet (UV) lamp, a UV transparent tube and Venturis that that draw ozonated air from near the UV lamp and mix the ozonated air with water traveling through the UV transparent tube while UV light breaks down ozone in the UV transparent tube into free radicals and other ozone decomposition products. Additional ozone can be introduced into what after it passes through the UV transparent tube.

The present invention generally relates to a system for treating a fluid and specifically to a treatment system configured for improved bacterial reduction, wherein the system comprises a field emission based UV light source adapted to emit light within a ultraviolet C (UVC) spectrum with a wavelength range having an upper range limit being higher compared to light emitted from a mercury based UV light source.

Distributing electromagnetic radiation in a reaction chamber may involve causing at least some electromagnetic radiation from at least one electromagnetic radiation emitter to be refracted by at least one lens into the reaction chamber as refracted electromagnetic radiation skewed laterally relative to a longitudinal direction of the reaction chamber and/or relative to the at least some electromagnetic radiation from the at least one electromagnetic radiation emitter.

A reactor configured to clean ballast water on ships includes a reactor housing having an inlet and an outlet and a reactor tube in the reactor housing providing a fluid connection between the inlet and the outlet. The reactor tube includes an inner wall having a plurality of rounded recesses extending longitudinally from a first end of the reactor tube to a second end of the reactor tube, and the rounded recesses each have a substantially constant cross section from the first end of the reactor tube to the second end of the reactor tube. A radially inwardly projecting ridge extends between each circumferentially adjacent pair of the rounded recesses.