An air purifying device (10) for reducing risk of air borne infection. The device has a hollow body having an inlet (14), an outlet (16) and an internal surface comprising a metal oxide layer. A fan (18) moves air through the body in contact with the surface, while a UV source comprises a first section for producing ozone in the air and a second section for producing hydroxyl ions. In one form the device may operate in two modes, a first mode for air purification where ozone output is minimised or not generated at all and a second mode for surface and air sterilisation where ozone output is maximised.

A sterilization, disinfection, sanitization, or decontamination system having a chamber defining a region, and a generator for creating a free radical effluent with reactive oxygen, nitrogen, and other species and/or a vaporizer. A closed loop circulating system without a free-radical destroyer is provided for supplying the mixture of free radicals from the generator mixed with the hydrogen peroxide solution in the form of the effluent to the chamber. The system is used in sterilizing, disinfecting, sanitizing, or decontaminating items in the chamber or room and, with a wound chamber, in treating wounds on a body. The wound chamber may be designed to maintain separation from wounds being treated. Various embodiments can control moisture to reduce or avoid unwanted condensation. Some embodiments can be incorporated into an appliance having a closed space, such as a washing machine. Some embodiments may include a residual coating device that deposits a bactericidal coating on sterilized items.

Methods of inactivating microbiological contamination described herein use a textile or membrane which can generate a contamination-inactivating amount of ozone or a reactive oxygen species. The textile or membrane includes first and second conductive layers and at least one ion conductive or porous intermediate layer positioned between the first and second conductive layers. The textile or membrane can form part of a protective face mask, for example a medical or surgical face mask. A voltage effective to generate a microbiological contamination-inactivating amount of the inactivating species is applied across the intermediate layer of the textile or membrane.

The mixing nozzle has a throat section, a diffuser section, a gas nozzle section, a first liquid suction port, a liquid nozzle section, a second liquid suction port, a baffle plate, and a jetting port. The first liquid suction port liquidly absorbs the solution in the water storage pool from a side of the gas nozzle section toward the gas nozzle tip. The liquid nozzle section extends to the downstream side of the gas nozzle section with intervening the first liquid suction port. The second liquid suction port liquidly absorbs the solution in the water storage pool from a side of the liquid nozzle section toward the liquid nozzle tip. The baffle plate is provided such that the mixed flow mixed in the diffuser section collides in front of a downstream end of the diffuser section, and divides and reverses the mixed flow.

A system includes an airflow passage and an air purification element. The airflow passage is configured to confine a flow of air and direct the flow of air toward a space. The air purification element is positioned in the airflow passage and configured to produce a peroxide to oxidize contaminants in air flowing through the airflow passage. The air purification element includes a peroxide-generating structure and a matrix containing a peroxide-activating catalyst configured to activate peroxide produced. The air purification element is configured to produce the peroxide from a water vapor and oxygen in the air within the airflow passage when energized by an energy source, and the matrix is configured to allow the contaminants to contact peroxide activated by the peroxide-activating catalyst.

A surface coating composition may include titanium dioxide optionally combined with copper oxide to permanently bind to any surface to create a long lasting, self-cleaning, deodorizing, and antimicrobial surface, and preparation method thereof. A method of continuous flow process to create anatase TiO.sub.2 crystals with particle sizes ranging from about 0.1 nm to about 200 nm, or further ranging from about 0.1 nm to about 20 nm in size.

The beauty device according to the present invention comprises by including a mist processing part generating sterilization water by electrolyzing water in a water tank and spraying the generated sterilization water in the form of mists, and a temperature stimulation processing part applying temperature stimulation to skin using a thermoelement. A more convenient and efficient skin care can be made possible because a mist spray function of hydrogen sterilization water and a temperature stimulation function can be simultaneously implemented using a single portable device. The temperature stimulation function can be simply implemented because temperature is controlled using a Peltier device.

An apparatus includes a substrate having a surface and a transparent photocatalyst coating secured on the surface of the substrate, wherein the transparent photocatalyst coating includes titanium oxide and a component selected from a fluorescent dye, ultra-fine glitter, indium tin oxide, aluminum zinc oxide, silver nitrate, and combinations thereof. The substrate is preferably selected from an appliance handle, doorknob, switch, keyboard, countertop, appliance handle, equipment button, touchscreen, handrail, light emitting device, and light cover. Such substrates are frequently touched by one or more users and may become contaminated. However, the transparent photocatalyst coating may be self-decontaminating.

Disclosed is a system for preventing scaling and deposit formation in a sterile air heat exchanger of a system for aseptic packaging within laminated carton packages, and a process for eliminating hydrogen peroxide residues in aseptic laminated carton packaging systems, characterized in that it comprises providing a supply of water for scrubbing sterile air that has the following properties: (a) maximum conductivity at 20° C. of 2.0 micromhos; and (b) a maximum silica content of 0.1 ppm.

A decontamination system with a water inlet to receive water from a water source, and a disinfectant inlet to receive disinfectant from a disinfectant source. A dispenser mixes the disinfectant with the water, according to a desired concentration, to produce a disinfectant solution. A supply valve releases a desired amount of the disinfectant solution. A reservoir with a substantially open top receives the desired amount of disinfectant solution. A mat within the reservoir is adapted to be stood upon by a user and remain substantially in place within the reservoir while the user scrubs the soles of shoes worn by the user against the mat. An overflow valve on a sidewall of the reservoir allows disinfectant solution within the reservoir to flow out of the reservoir when the disinfectant solution attains a desired depth within the reservoir.