VDI 6022

VDI 6022, a set of technical guidelines to ensure good hygiene in ventilation systems.


Certification of a HVAC system under VDI 6022 guarantees that the system fulfills the market’s strictest hygiene requirements. It ensures that the conditioned air contains no pathogenic spores or hazardous substances throughout the entire lifetime of the system. This means a better indoor climate, for optimum well-being and performance.

Materials certified under VDI 6022 undergo extensive testing to ensure that they cannot provide a growth base for bacteria or fungi. The materials are also examined for the release of hazardous substances. VDI 6022 certified materials are easy to clean, as the surfaces are sealed and able to withstand approved cleaning and disinfection agents and methods.

HVAC system with the highest standard of hygiene
DAFA has in-depth knowledge of the VDI 6022 (Verein Deutsche Ingenieren)
HVAC plant with the highest hygiene standard


VDI 6022 is a set of technical guidelines to ensure good hygiene in ventilation systems.

German working environment legislation requires that ventilation systems be maintained, to ensure that no pathogenic organisms or harmful chemical substances are emitted. When a system complies with the VDI 6022 guidelines, this is a guarantee that the ventilation system has been designed, manufactured, installed and maintained so as to ensure that people in the rooms being ventilated do not become ill, and that the rooms are pleasant to be in.


In addition to the federal working environment legislation, there is also local legislation in some German states that sets requirements for ventilation system maintenance.

The VDI 6022 guidelines apply in the DACH countries: Germany, Austria and Switzerland. The Association of German Engineers (VDI) has prepared and maintains the guidelines. There are VDI guidelines covering a range of different fields.

Licensed in VDI 6022

DAFA has extensive knowledge of VDI 6022 requirements. Our staff are licensed in VDI 6022 requirements by TÜV Nord, and is able to assist and advice our customers of choosing the right material and solutions.

VDI 6022

Tested, documented and guaranteed

DAFA can perform testing in its own climate chamber. Our test center allows us to perform aging tests – subjecting products to harsh climate impacts from heat, cold, UV light and moisture.


Testing and validation

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Healthier indoor climate with clinical hygiene standard.

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