Patent ID: 8551399
Filing Date: 2013-10-08
Classification: A61L

Abstract:
1. A process of combating bacteria in an enclosed space within a room and contained in biofilm on surfaces within the room, consisting of: creating in the room a disinfecting atmosphere which includes ozone at a concentration of 2-350 ppm by weight and hydrogen peroxide at an amount of 1.0-10 wt. %, at a relative humidity of at least 60%, wherein said amount of hydrogen peroxide is derived from a supply solution of 0.2-10% hydrogen peroxide; subjecting the biofilm, including at least biofilm carrying surfaces having live bacteria therein, to said disinfecting atmosphere for a period of time effective to cause substantial kill, by at least a 6 log reduction, of the bacteria in the biofilm, the period of time being at least 30 minutes; and subsequently removing ozone from the disinfecting atmosphere, down to 0.04 ppm or less.