Measuring vaporised hydrogen peroxide

Vaisala has patented a novel method and device for measuring vaporised hydrogen peroxide. The patent protects Vaisala’s in-house dual gas sensor structure and the method for measuring vaporised hydrogen peroxide.

Vaporised hydrogen peroxide is often used in bio-decontamination processes, especially in pharmaceutical, healthcare and life science industries, as H₂O₂ vapour destroys even the most resistant microorganisms. H₂O₂ vapour is used as a decontamination agent in the pharmaceutical industry to guarantee production and end-product quality.

“Vaisala is always looking for opportunities to measure new parameters. We are very proud and happy that with this new innovation we are able to support our customers to measure vaporised hydrogen peroxide, which has traditionally been considered a difficult parameter to measure,” said Jukka Leppänen, a senior scientist at Vaisala Industrial Measurements and the inventor of the new method.

“Innovating something like this is not quick nor easy. It has been a long process but, as the relevantly quick approval cycle from the United States Patent and Trademark Office confirms, there was a true need for this revolutionary innovation. Keen customer interest proves also the clear need for reliable, stable and accurate measurement of the H₂O₂ vapour in the market,” Leppänen continued.

Vaisala released HPP272, the first probe based on the patented H₂O₂ measurement technology, in 2017. In addition to H₂O₂, the Vaisala HPP272 probe measures temperature, relative humidity and relative saturation. The probe uses the PEROXCAP sensor, which is based on thin film capacitive sensor technology and was specifically developed by Vaisala for measuring vapourised hydrogen peroxide.

Image credit: ©stock.adobe.com/au/Leonid Andronov