System and method for increasing concentration of sterilant in region

Abstract

A vapor decontamination system for decontaminating a defined region. The system is comprised of a chamber defining a region, and a generator for generating vaporized hydrogen peroxide from a solution of hydrogen peroxide and water. A closed loop circulating system is provided for supplying the vaporized hydrogen peroxide to the region. A destroyer within the closed loop circulating system breaks down the vaporized hydrogen peroxide. A bypass conduit is provided to bypass the destroyer. A controller causes vaporized hydrogen peroxide from the generator to bypass the destroyer during a predetermined phase of operation.

Description

technical field [0001] The invention is related to general sterilization and purification technology, especially a system with synthetic gas or steam bactericide in the sterilization or purification system. Background technique [0002] Bactericidal methods are widely used and are also used with a wide range of fungicides. When the term sterilization is used herein, it refers to the inactivation of biological contaminants, mainly on inanimate objects. The term decontamination refers to the inactivation of pathogenic organisms. [0003] Gas and vapor sterilization or decontamination systems rely on maintaining specific process parameters in order to achieve sterility goals or guaranteed decontamination standards. For hydrogen peroxide vapor sterilization or purification systems, these parameters include concentration, saturation, temperature, pressure and contact time of hydrogen peroxide vapor. By controlling these parameters, it is expected that the criteria for assuring...

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Problems solved by technology

However, use in large-scale isolation chambers, ie, 5,000 cubic feet or larger, may greatly affect duration of action

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