Room decontamination with hydrogen peroxide vapor

Details Room decontamination with hydrogen peroxide vapor Room decontamination with hydrogen peroxide vapor

2008-04-08

2008-04-08

Griffin, Walter D. (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

Reexamination Certificate

active

07354551

ABSTRACT:
A system for microbially and/or chemically decontaminating a room such as a hotel room includes a vapor generator which supplies a decontaminant vapor, such as hydrogen peroxide vapor to the room. The room is then aerated to a level at which it is safe for normal occupants to enter. By using a two step aeration, with a second step at lower humidity than the first, the concentration of residual hydrogen peroxide is reduced rapidly to safe levels of 1 ppm or less, typically about 0.5 ppm, in under four hours. The room is rendered substantially free of contaminants, such as those responsible for Severe Acute Respiratory Syndrome (SARS), Norwalk virus, and unpleasant odors.

REFERENCES:
patent: 7014813 (2006-03-01), Watling et al.
patent: 2002/0114727 (2002-08-01), McVey et al.
patent: 2005/0074359 (2005-04-01), Krieger et al.
patent: 0774263 (1997-05-01), None
patent: WO 01/21223 (2001-03-01), None
patent: WO 03/082355 (2003-10-01), None

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