Decontamination Systems

Hydrogen peroxide fumigation by ENVAIR Germany

Fumigation with hydrogen peroxide (H2O2) is used to decontaminate clean rooms, laboratories, safety cabinets and isolators, and represents a fast and affordable alternative to decontamination with formaldehyde. Laboratory testing has shown the H2O2 method to be effective when compared with the formaldehyde method. In addition, hydrogen peroxide carries fewer health risks than formaldehyde.

Key benefits at a glance:

  • Much lower health risks than formaldehyde
  • Safe and effective
  • Fast and affordable
  • Residue-free method with no need for further cleaning
  • Validated process
  • Method reviewed and certified by the German public health institute RKI
  • Compliant with the FDA’s 21 CFR Part 11

ENVAIR is a certified provider of H2O2 decontamination

ENVAIR Germany is a competent and reliable provider of decontamination for safety cabinets and isolators using H2O2. This service is carried out by specially trained service engineers with TÜV and STERIS certification. It can be booked directly with ENVAIR.

Rapid and clean: decontamination with the STERIS VHP 1000ED

Hydrogen peroxide is a largely stable compound of hydrogen and oxygen, found in liquid form. It has strong oxidising properties and makes an excellent decontamination and sterilisation agent thanks to its broad range of effects. The ENVAIR method involves vaporising a hydrogen peroxide solution and blasting this into the area which is to be cleaned. It only takes around one to two hours to completely decontaminate a safety cabinet with this method, which is statistically proven to reduce the number of germs by 1,000,000 times (6 log reduction).

ENVAIR uses the most high-performance generator available on the market — the STERIS VHP 1000ED, a mobile unit produced by the world’s largest manufacturer of hydrogen peroxide systems. This is the only generator which is certified to meet the strict criteria and specifications of the Robert Koch Institute (RKI), Germany’s national public health institute.

The generator is highly mobile and can be quickly connected to the safety cabinet or isolator, which will then be decontaminated using H2O2 in a closed-loop system. All surfaces of the work area, as well as areas such as the return air duct, ventilators and filter, are coated evenly with vaporised H2O2. The quantity of hydrogen peroxide used is calculated based on the size of each individual machine. The fumigation cycle is checked using chemical and biological indicators (CI and BI).

A slight negative pressure is maintained during the process to guarantee that no H2O2 can escape. In addition, the surrounding area is monitored by a Dräger Polytron measuring instrument. Once decontamination is complete, a catalytic converter breaks the H2O2 down into the harmless substances of oxygen and water, which are then carried off via a special HEPA H14 filter.

Key features of ENVAIR decontamination

  • Decontamination period: 1–2 hours
  • Validated and certified method
  • Proven germ reduction (6 log reduction)
  • Negative pressure system prevents hydrogen peroxide from escaping
  • Continuous concentration measurement in the safety cabinet, isolator and surrounding area using Dräger Polytron equipment
  • No surfaces are wetted
  • No odours or health risks
  • Workstation limiting values are met
  • H2O2 is broken down into oxygen and water by a catalytic converter following decontamination
  • Safe process carried out by TÜV- and STERIS-certified service engineers
  • 15 years’ experience in H2O2 decontamination within the pharma industry