Sterilization and decontamination of an enclosed environment

摘要

A method of sterilization, decontamination and/or sanitation of an enclosed environment, the method comprising the steps of measuring the temperature of an enclosed environment to be treated; calculating the relative humidity required to provide a desired partial pressure at the measured temperature, the actual desired partial pressure required being based on a predetermined optimum partial pressure at a base temperature corresponding to an optimum operating temperature for that environment; introducing a predetermined quantity of water to the environment to provide the calculated relative humidity for the measured temperature; discharging ozone into the humidified environment; maintaining the ozone level at a concentration that will achieve the required degree of decontamination, sterilization and/or sanitation of the humid environment; and reducing the ozone level to an acceptable safe exposure level.

主权项

1. A method of sterilisation, decontamination and/or sanitation of an enclosed environment, the method comprising:
measuring the temperature of the enclosed environment to be treated; calculating a first relative humidity that results in a predetermined partial pressure of water vapour at the measured temperature, the first relative humidity calculated as a function of the predetermined partial pressure derived from a predetermined second relative humidity at a base temperature predetermined for the enclosed environment and a saturated vapour pressure at the measured temperature; introducing an amount of water to the environment to provide the first relative humidity; and then discharging ozone into the enclosed environment; maintaining the ozone level at a concentration that will achieve a predetermined degree of decontamination, sterilisation and/or sanitation of the enclosed environment; and reducing the ozone level to a predetermined exposure level.