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What Is Vaporized Hydrogen Peroxide Sterilization?
Hydrogen peroxide has been a staple in the healthcare industry for many years, but in the 1970s, its vapor form emerged as a low-temperature sterilization technique that has gained significant popularity.
This article will delve into how the hydrogen peroxide sterilization process functions, touching on crucial federal guidelines to adhere to and potential challenges that may arise.
Understanding Low-Temperature Sterilization
Low-temperature sterilization refers to a sterilization method utilizing gas or specific chemicals for items unsuitable for steam processing. While ethylene oxide was previously prominent in low-temperature sterilization, its slow pace and regulatory obstacles, along with evidence pointing to an elevated risk of certain cancers with prolonged exposure, led to hydrogen peroxide largely supplanting it.
Exploring Hydrogen Peroxide Sterilization
Vaporized hydrogen peroxide sterilization, alternatively known as hydrogen peroxide sterilization, involves a technique employed to sanitize heat-sensitive devices or materials like select plastics, electrical equipment, and corrosion-vulnerable metal alloys. This non-toxic process (producing solely water vapor and oxygen) finds application in medical implants, electronic gadgets, and temperature-sensitive instruments.
Despite initial market and material issues, many have been addressed, establishing it as the primary method for low-temperature sterilization. Various manufacturers offer vapor hydrogen peroxide sterilizers, employing gas plasma or ozone within the sterilization cycle. Despite not contributing to product sterilization, these elements assist in eliminating residual hydrogen peroxide.
The Hydrogen Peroxide Sterilization Process
A blend of water and highly concentrated hydrogen peroxide transforms into gas, circulating at specified concentrations within the chamber. Post-process, the vapor is vacuumed out, converting into water and oxygen.
Operating at temperatures ranging from 37&ndash;44&deg;C, the sterilization cycle typically lasts around 75 minutes.
Guidelines for Hydrogen Peroxide Sterilization
Federal guidelines and recommendations by entities like the U.S. Food &amp; Drug Administration, International Organization for Standardization, and Centers for Disease Control &amp; Prevention govern various sterilization methods. Specific directives dictate exposure times, temperatures, and hydrogen peroxide concentrations.
Challenges and Considerations
While widely adopted, hydrogen peroxide sterilization isn't devoid of challenges:
<ul>
<li>Smaller sterilization chambers compared to steam autoclaves and load limitations.</li>
<li>Materials incompatible with VHP sterilization due to sensitivity to moisture or oxidizing agents.</li>
<li>Precise control over parameters like temperature, humidity, and exposure time.</li>
<li>Residual hydrogen peroxide concerns necessitating post-sterilization cycles.</li>
</ul>

What Is Vaporized Hydrogen Peroxide Sterilization?

Publish Time：2024-02-28