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Sterilant gas monitoring is the detection of hazardous gases used by health care and other facilities to sterilize medical supplies that cannot be sterilized by heat or steam methods. [1] The current FDA approved sterilant gases are ethylene oxide, [2] hydrogen peroxide [3] and ozone. [4]
The most common method for sterilizing at low temperatures today is by using hydrogen peroxide plasma, which has near zero risk to workers and cycles take a fraction of the time of ETO sterilization. [citation needed] Depending on the healthcare facility's policy, there will be either an event related or time related sterile storage policy.
Hydrogen peroxide is a chemical compound with the formula H 2 O 2.In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water.It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
In medical sterilization, hydrogen peroxide is used at higher concentrations, ranging from around 35% up to 90%. The biggest advantage of hydrogen peroxide as a sterilant is the short cycle time. Whereas the cycle time for ethylene oxide may be 10 to 15 hours, some modern hydrogen peroxide sterilizers have a cycle time as short as 28 minutes. [44]
Vaporized hydrogen peroxide (trademarked VHP, [1] also known as hydrogen peroxide vapor, HPV) is a vapor form of hydrogen peroxide (H 2 O 2) with applications as a low-temperature antimicrobial vapor used to decontaminate enclosed and sealed areas such as laboratory workstations, isolation and pass-through rooms, [2] and even aircraft interiors ...
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