This ventilation system consists of a central VMC (a fan) that extracts air through ducts in the humid areas of the house, bathrooms and kitchens, by depression, will enter air from the outside in the remaining rooms, living rooms and bedrooms. The airflows involved are quite low, which for users means that they will not feel the displacement of air, thus ensuring comfort.
VMC systems are technically simple ventilation systems, with just a trade name for a particular application. For more widespread applications there are larger units that allow the movement of larger flows of air. The terminal equipment (grilles, diffusers and extraction valves) can be of various models and sizes on the market, and can even be painted