Patent ID: 9410191
Filing Date: 2016-08-09
CPC Classification: A61L,C12Q

Claim Text:
1. A method of decontaminating a material, comprising: (a) providing a gas phase of an aqueous hydrogen peroxide source that comprises hydrogen peroxide gas at an initial concentration, wherein the gas is provided without nebulization or atomization; (b) contacting the gas phase of the aqueous hydrogen peroxide source with a carrier gas, whereby the concentration of hydrogen peroxide in the aqueous hydrogen peroxide source increases to a second concentration that is higher than the initial concentration; (c) adding to the aqueous hydrogen peroxide source, while step (b) is occurring, an aqueous hydrogen peroxide solution comprising hydrogen peroxide at a third concentration that is lower than the second concentration; (d) withdrawing, after step (c) has begun, a gas stream comprising the resulting combined gas phase of the aqueous hydrogen peroxide source and the carrier gas at a stable steady-state concentration of hydrogen peroxide; and (e) delivering the gas stream to the material, thereby decontaminating the material.