An anti-bacterial photocatalytic coating apparatus includes a chassis and a container containing an anti-bacterial photocatalytic coating liquid. There is a means mounted on the chassis for applying plasma-based surface activation unto a stationary surface underneath the chassis. There is also a means mounted on the chassis for spraying the anti-bacterial photocatalytic coating liquid on the surface underneath the chassis. A third means mounted on the chassis for shining UV light onto the surface sprayed with the anti-bacterial photocatalytic coating liquid. Optionally, there is a means mounted on the chassis for baking the surface sprayed with the anti-bacterial photocatalytic coating liquid. The plasma-based surface activation may be replaced with the spraying of a non-photocatalytic prime coating. The equivalent anti-bacterial photocatalytic coating processes for coating stationary surface are also introduced.

A method is provided for vaporized hydrogen peroxide cleaning of a chamber. The method includes altering a temperature of air in the chamber from an initial temperature to a sterilization temperature over a first time period. The method also includes injecting vaporized hydrogen peroxide into air in the chamber to alter a relative humidity of hydrogen peroxide vapor in the chamber to a sterilization level over the first time period. The method also includes maintaining the temperature at the sterilization temperature and the relative humidity at the sterilization level over a second time period. The method also includes reducing the relative humidity from the sterilization level to a safe level over a third time period. In one embodiment, the method is provided for vaporized hydrogen peroxide cleaning of an interior chamber of an incubation container. In other embodiments, the incubation chamber featured in the method is provided.

Disclosed is a process and a device for sterilizing gas filtration unit, characterized in that the sterilization process includes at least: an application step consisting in circulating, through the gas filtration unit, a gas mixture including hot air and a determined amount of hydrogen peroxide vapor, in which the determined amount of hydrogen peroxide vapor is obtained by sequentially injecting, with a given time interval (t) between two successive injections, a given dose of hydrogen peroxide in the liquid state into the hot air; and a sterilization step consisting, during the time interval (t), in circulating hot air through the filtration unit in order to eliminate, by evaporation, all or some of the hydrogen peroxide deposited on the filtration unit during the application step.

Methods of manufacturing a light-activated powder are provided which provide solid-state generation and release of chlorine dioxide without detectable amounts of any toxic by-products such as chlorine gas, chlorites, or chlorates. The powder need not be exposed to moisture, relative humidity, or an acid before or during exposure of the powder to visible light to generate the gas. The powder can also be prepared under conditions that minimize or prevent decomposition or oxidation of sodium chlorite or premature light activation of the powder during the manufacturing process to maximize its activity.

A method and an apparatus are provided for cleaning, disinfecting, and/or sterilizing a device. The method comprises contacting an object with an obstructing substance such that the object is infiltrated with at least a portion of the obstructing substance. An absorptive and/or adsorptive capacity of the object is reduced by the obstructing substance. The object is contacted with a treatment agent after the capacity of the object is reduced. Infiltration of the object with the treatment agent is limited by the reduction of the capacity of the object.

Disclosed is a method of sterilizing an article by sequentially exposing the article under vacuum first to a gaseous conditioning agent for forming radicals and then to a sterilant. The preferred conditioning agent is hydrogen peroxide and the preferred sterilant is ozone. The chamber is initially evacuated to a first vacuum pressure and then sealed for the remainder of the sterilization process and during all sterilant injection cycles, without removal of any component of the sterilization atmosphere, which means without any measures to reduce the water vapor content. Keeping the chamber sealed and maintaining the conditioning agent and the radicals generated thereby in the chamber for the sterilization with sterilant results in a synergistic increase in the sterilization efficiency and allows for the use of much lower sterilant amounts and sterilization cycle times than would be expected from using the conditioning agent and the sterilant in combination.

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.

The escalator handrail decontamination system includes at least one sealed decontamination unit, for safe and localized decontamination environment, including at least one ozone generator, at least one ozone concentration sensor at the decontamination zone, at least one ozone destruction unit for converting ozone to oxygen; at least one ozone safety sensor for monitoring ozone level in the area surrounding the moving handrail belt; at least one secondary ozone destruction unit downstream of the at least one safety sensor; an intermediate controller and a central controller. The ozone output from the EHDS ozone generator is constantly monitored by an ozone concentration sensor to ensure minimum efficacy levels of ozone are maintained and to ensure ozone output remains within designated safety levels. The EHDS is positioned at the unseen lower section of the revolving handrail.

The present invention provides a sterilization apparatus and a sterilization method. The sterilization method includes: an operation in which a sterilant injection block for containing a sterilant and providing a sterilant injection path for injecting the sterilant or a vacuum packaging pouch having the sterilant injection block is mounted inside a vacuum chamber; and an operation in which the vacuum chamber is operated in a chamber mode in which the vacuum chamber is used as a sterilization container when only the sterilant injection block is mounted and the vacuum packaging pouch is operated in a pouch mode in which the vacuum packaging pouch is used as a sterilization container when the vacuum packaging pouch is mounted.

Decontamination device and method for sterilizing an inside of facility or an inside of a device installed in the facility in which cells, tissues, culture media, sterile reagents, microorganisms or the like are handled or cultured, including: dry fog generating machine, installed in decontamination area, for converting peracetic acid mixed solution containing low-concentration peracetic acid into dry fog and spraying the dry fog into the decontamination area; humidity sensor, installed in decontamination area, for measuring humidity in decontamination area; gas recovery machine, installed in the above decontamination area, for recovering gas in decontamination area; and control device for controlling spraying from dry fog generating machine and gas recovery operation by the gas recovery machine based on information from the above humidity sensor, a main control and monitoring device, installed outside the above decontamination area, for controlling the control devices of one or more of the above decontamination devices.