VH₂O₂ biodecontamination technology is based on the use of hydrogen peroxide to control microbiological contamination in controlled environments. It is part of airborne surface disinfection processes and aims to achieve a high level of microbial reduction on both accessible surfaces and hard-to-reach areas.
This technology meets the requirements of pharmaceutical, hospital and biotechnological environments, where process stability, result reproducibility and equipment protection are key priorities.
Principle of hydrogen peroxide biodecontamination
Hydrogen peroxide biodecontamination relies on a controlled mechanism combining the biocidal action of H₂O₂ with its ability to diffuse homogeneously within an enclosed volume, without direct manual application to surfaces.
Action of H₂O₂ on the microbiological load
Hydrogen peroxide acts through oxidation of microorganisms. This mechanism enables the inactivation of bacteria, yeasts, moulds, spores and viruses. The process targets a defined and measurable logarithmic reduction, in line with the expectations of regulated environments. In the pharmaceutical sector, the ability to demonstrate reproducible reduction is a central criterion during cleaning and disinfection qualification and validation phases.
Biocide diffusion throughout the treated volume
The performance of VH₂O₂ biodecontamination also depends on the diffusion of the biocide within the treated volume. The process must reach exposed surfaces as well as more complex areas such as corners, gaps and partially obstructed zones.
Homogeneous diffusion ensures consistent microbiological reduction and limits performance variability across different areas of the room.
VH₂O₂ vaporisation and dry-fog technology: two distinct approaches
The implementation of hydrogen peroxide is based on different technical principles that directly influence process integration and behaviour in controlled environments.
Conventional hydrogen peroxide vaporisation
Conventional vaporisation uses a concentrated hydrogen peroxide solution heated to high temperatures. While this approach has proven efficacy, it involves significant technical constraints. The risk of condensation can affect certain materials and sensitive equipment. Thermal management requirements, room tightness and system integration constraints can also limit its use in complex or already equipped environments.
Dry-fog aerosolisation at ambient temperature
Dry-fog technology is based on the atomisation of hydrogen peroxide at ambient temperature into uniform micro-droplets. This fine diffusion allows the mist to naturally distribute throughout the space without generating visible condensation.
The absence of liquid deposits limits material stress and improves compatibility with sensitive equipment. This principle explains why many pharmaceutical sites now favour dry-fog solutions.
Why the dry-fog approach better meets GMP constraints
GMP environments impose high requirements in terms of process stability, equipment protection and personnel safety. In this context, dry-fog technology offers structural advantages.
The absence of condensation protects surfaces, electronic components and measuring instruments. Homogeneous biocide diffusion supports controlled cycles that are compatible with requirements for reproducibility, documentation and operational continuity.
How Solidfog implements VH₂O₂ technology
VH₂O₂ technology fully demonstrates its value when coherently integrated into complex controlled environments, which forms the foundation of Solidfog’s approach.
Mastery of atomisation adapted to controlled environments
Solidfog relies on dry-fog technology to ensure homogeneous VH₂O₂ diffusion across a wide range of volumes. The fineness of atomisation allows the mist to distribute evenly, including in environments with complex geometries.
This control of diffusion promotes stable and reproducible microbiological performance from cycle to cycle.
Integration designed for pharmaceutical site constraints
Solidfog VH₂O₂ technology integrates into regulated environments without imposing heavy structural constraints. This capability facilitates use in cleanrooms, technical areas and sensitive environments. Alignment with GMP requirements is a core element of Solidfog’s technological positioning.
Discuss your VH₂O₂ biodecontamination project with Solidfog
Implementing a VH₂O₂ biodecontamination technology depends on the specific constraints of each controlled environment. Treated volume, room configuration, existing equipment and regulatory requirements directly influence process selection and technical parameters.
Solidfog supports pharmaceutical and industrial sites during this scoping phase to guide projects toward a coherent, controlled solution compatible with GMP requirements.