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Acquired By Volution in April 2023

As the French leader in the positive input ventilation market, VMI has been designing and developing Positive Input Ventilation or Ventilation Mécanique par Insufflation® (VMI®) system since 1986. This technology is designed to improve the quality of indoor air. They have designed “plug and play” solutions allowing to couple ventilation with heat pumps, solar panels and earth-to-air heat exchangers.

After having sold tens of thousands of systems, they are recognised as the specialist PIV supplier and undisputed front-runner of the technology in France leading the fight against humidity and pollutants in indoor and outdoor air. The company is extensively involved in the public debate on air quality and in research on innovative energy solutions.

Company website



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