Ecological bio-decontamination with vaporized hydrogen peroxide

Vaisala's PEROXCAP® vaporized hydrogen peroxide probes for simple, accurate, and effective bio-decontamination

Vaporized hydrogen peroxide is an ecological bio-decontamination agent that decomposes into water and oxygen, leaving no residue. This has led to its widespread use in bio-decontamination processes.

As a leading developer of measurement instruments for demanding environments, we set out to create the best possible technology for measuring those processes.

Repeatable measurements in rooms, isolators, transfer hatches, and other equipment ensures effective log kills and improves cycle development and process control.

Vaisala HPP270 Series Probes

The unique 3-in-1 probe PEROXCAP® HPP272 for measuring H₂O₂, humidity and temperature has been developed further and the accuracy is now in a wider temperature range. Furthermore, dew point and vapor pressure measurements are available.

There is also a new type of probe available; the HPP271 was developed for applications where only hydrogen peroxide (ppm) and temperature dew point measurements are needed.

The probes can be calibrated and adjusted on-site with humidity by using Vaisala Insight PC Software and a humidity calibrator such as Vaisala HMK15 salt calibrator.

Vaisala HPP270 Series

Airborne surface disinfection (ASD) with vH2O2

Learn how Vaisala's unique PEROXCAP® sensing technology delivers reproducible measurements of vH₂O₂ and H₂O, and saturated vapor pressure.

Content:

Types of sterilization
The stages of a bio-decontamination cycle with H₂O₂
The difference between relative saturation and relative humidity
Why monitoring relative humidity is not enough
Reducing relative humidity before the conditioning phase?
Measurement Traceability
Measurements in practice
Example of field use of the Indigo80 portable indicator

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Cleanroom transfer hatch bio-decontamination

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Customer Testimonials

“With the Vaisala unit I’m getting humidity and temperature, along with H₂O₂ concentration. This gives a more complete picture of what’s occurring and that’s crucial in validation.”

Rick Nieskes, Ardien Consulting Services

“Today, Vaisala is the best technology on the market to measure the concentration of H₂O₂ reliably, accurately, and repeatably over time...”

Philippe Muylaert, STERIS SAS

Download the Bio-Decontamination Measurement Guide

This interactive guide includes links to:

On-demand webinars on vH₂O₂ bio-decontamination
Measurement glossary with relevant terms and definitions such as hysteresis, non-linearity, resolution, etc.
Application notes on bio-decontaminating facilities, isolators, transfer hatches and restricted access barrier systems
Measurement technology information on relative saturation, relative humidity, temperature, and vaporized hydrogen peroxide

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vH2O2 Calculator

With this vaporized hydrogen peroxide calculator, you can simulate bio-decontamination processes in closed and open systems, or under free evaporation conditions. Simply choose your method and input parameters like: phase duration, temperature, injection rates, H₂O₂ liquid concentration, and other parameters. Model your process in the simulator and see the effects on the condensation point, relative humidity, relative saturation, and achievable vH₂O₂ ppm concentration.

How to use:

Choose your bio-decontamination method: Closed system, Open system, free evaporation
Enter process parameters
View results

Try the calculator

Learn from our experts

eBook

Hydrogen peroxide vapor technical eBook

In this technical eBook you will learn the fundamental conversion formulas that pertain to hydrogen peroxide vapor. These formulas allow you to make your own calculations.

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Webinar

Humidity sensors in VH2O2 applications: Choosing the right sensor

In this webinar we compare relative humidity sensors, relative humidity sensors with a catalytic layer, and the combination of these two sensors in a single probe – Vaisala’s PEROXCAP® sensor.

Blog

Vitality: Understanding the lifespan of vaporized H2O2 sensors

A unique feature of the HPP270 series probes is the ability to evaluate the sensors’ performance through its “Sensor Vitality” value. This value is like a health check for the sensor.

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Blog

How to connect the HPP270 vH2O2 probe to an Indigo500 Transmitter

In this video, Vaisala Application Engineer Nevon Mansour demonstrates how to connect and configure the Vaisala HPP272 probe, which is used for vaporized hydrogen peroxide bio-decontamination applications.

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Webinar

Humidity Measurement in H2O2 Bio-decontamination – Relative Saturation as the Key

Watch this recorded webinar to understand the relationship between the key parameters in bio-decontamination with vaporized hydrogen peroxide; specifically relative saturation and relative humidity.

Webinar

Vaporized Hydrogen Peroxide Calculations & Formulas

In this webinar, we discuss the methods for calculating different humidity and vaporized hydrogen peroxide variables, such as: relative saturation, parts per million, and mixture dew point temperature.

Blog