The validation of a DSVA is an essential step in regulated environments. It demonstrates the effectiveness of a cycle under defined and controlled conditions. This approach relies on a normative framework, the use of biological indicators, and rigorous traceability of parameters. This page presents the validation principles applied to VH₂O₂ biodecontamination processes.

Why validate a DSVA cycle?
Validation aims to demonstrate that a cycle achieves the defined microbiological objectives. It helps structure the implementation of the process and ensures its reproducibility.
Objective of validation in regulated environments
Pharmaceutical and biotechnology environments require documented control of processes. DSVA validation is part of this framework. It confirms that the cycle achieves measurable performance under defined conditions. This approach facilitates the integration of the process into the site's quality system.
Difference between an operational cycle and a validated cycle
An operational cycle corresponds to the routine use of the system. A validated cycle is based on documented tests and defined acceptance criteria. Validation formalizes the cycle parameters. It establishes a reproducible framework that can be used over time.
The EN 17272 standard in DSVA validation
The EN 17272 standard provides a reference framework for automated airborne disinfection processes. It structures the demonstration of microbiological effectiveness.
Normative reference for DSVA processes
The EN 17272 standard governs the validation of DSVA processes. It defines an approach based on measurable and reproducible tests. This framework helps structure the demonstration of performance. The standard does not replace the site's internal requirements. It provides a recognized reference for validation.
Documented demonstration of effectiveness
Validation relies on documented evidence. Results must be measured and recorded according to a defined methodology. This approach strengthens the credibility of the process during audits and inspections. It also contributes to better control of microbiological risk.
The role of biological indicators in validation
Biological indicators are a central tool in DSVA validation. They make it possible to evaluate the effectiveness of the cycle under representative conditions.

Principle of biological indicators
A biological indicator contains micro-organisms selected for their resistance. It serves as a reference to test the ability of a process to reduce a defined microbiological load. The use of biological indicators provides a measurable and interpretable result.
Placement of biological indicators within the treated volume
Biological indicators are placed at defined locations within the treated volume. These positions may correspond to areas that are more difficult to reach. This approach helps evaluate the ability of the cycle to act throughout the entire volume, including in complex configurations.
Interpretation of results
The obtained results must be analyzed according to defined acceptance criteria. Interpretation relies on a clear and documented methodology. This step confirms that the cycle achieves the defined objectives. It represents a key element of the validation file.
Traceability and documentation control of cycles
DSVA validation requires complete traceability of parameters. This traceability supports process reproducibility and facilitates its integration into the quality system.
Recording of cycle parameters
Each phase of the cycle must be recorded. Data include concentration, exposure time, and room conditions. This information helps verify treatment consistency and identify potential deviations.
Data archiving and use
Data from validated cycles must be archived according to internal procedures. They may be used for later analysis or to respond to inspection requests. Structured archiving strengthens the documentation control of the process.
Contribution to the reproducibility of DSVA cycles
Traceability supports the reproducibility of cycles over time. It allows comparisons between interventions and ensures consistency between treatments. A documented and controlled process reduces uncertainties related to biodecontamination operations.
Why choose Solidfog for your DSVA validation?
Solidfog develops VH₂O₂ biodecontamination solutions adapted to regulated environments. The company supports sites in structuring and controlling their cycles.

Expertise in VH₂O₂ biodecontamination
Solidfog focuses its expertise on DSVA with VH₂O₂. This specialization supports a rigorous technical approach adapted to the requirements of critical environments.
Support in structuring validation
Solidfog assists in defining parameters and organizing validation tests. This approach helps formalize a clear and consistent framework. The support follows a logic of process control and documentation.
An approach focused on compliance and traceability
Solidfog solutions integrate structured management of cycle parameters. This approach facilitates traceability and treatment reproducibility. It supports the integration of the process into environments subject to regulatory requirements.
Contact Solidfog for your DSVA validation project
Would you like to structure or strengthen the validation of your DSVA with VH₂O₂? Contact Solidfog to discuss your requirements and define an approach adapted to your environment.