This section will include all published material of the part of the feasibility study that addresses the inspection of stand-alone ventilation systems.

  • Existing regulations, standards and guidelines on the inspection of stand-alone ventilation systems

  • This report provides a review of existing regulations, schemes, guidelines and standards on the inspection of stand-alone ventilation systems, and other relevant initiatives and projects.

    A total of 81 items has been found and analysed. A detailed analysis was carried out for a selection of 34 of them, seen as the most interesting or representative ones.

    Most of the identified items do not only cover inspection. They often describe installation, commissioning or maintenance guidelines or requirements, including an inspection part.

    The identified items include:

    • regulations in 12 EU countries, a part of them being dedicated to workplaces in the framework of the protection of workers,
    • 11 European standards and some national standards in the EU and outside the EU,
    • a wide range of guidelines (47 items) covering different levels of inspection, from checklists based on visual checks to measurement protocols.

    Measurements, if any, are mainly focused on airflow rates, but also to a less extent on measurements of fan electrical consumption and ductwork airtightness. Measuring indoor air quality parameters and noise is rare.

    The report also identifies interesting results from European, international and national projects that help to identify what could be the contents of an inspection scheme. Standards and guidelines for the inspection of ductwork airtightness have been specifically listed and analysed.

    Other initiatives than inspection, aiming at improving the quality of the stand-alone ventilation systems and thus reducing the needs for inspection, have been identified. They include: performance product certification and database, clear design, installation and commissioning procedures, training/qualification/certification of the competence of professionals, increase of occupants awareness and use of smart ventilation systems.

    Full report


  • Stock of ventilation systems in EU buildings and foreseen evolution

  • This report provides an assessment of the stock and sales of stand-alone ventilation systems in EU countries, along with an assessment of the evolution of this stock for 2030, 2040 and 2050.

    Existing data about the stock and sales of ventilation systems in the EU have been searched, collected and analysed.

    Information on natural ventilation systems was not sufficient to be able to assess their stock and market.

    The current stock (2020) of mechanical ventilation systems is estimated to 139 million (mean value of the existing data), ranging from a minimum value of 86 million to a maximum value of 190 million, of which 93% residential and 2/3 of decentralised unidirectional residential systems. The current annual sales are estimated to almost 8.5 million units, of which 93% residential and 60% of decentralised unidirectional units.

    The evolution of the stock and sales up to 2050 has been estimated from the consolidation of the existing data. The values show a 2050 stock of 206 million units (mean value) with an increased percentage of sales of balanced ventilation systems.

    Examples of publications that show characteristics of stand-alone ventilation systems in the existing stock have been analysed and show that a large proportion of systems do not provide the designed or required air flow rates.

    Full report


  • Summary of the analysis on the relevance, feasibility and possible scope of measures at EU-level for the inspection of stand-alone ventilation systems
  • Selection of policy options for inspections of stand-alone ventilation systems and analysis of related potential impacts