In renovation, it is not always possible to install a VMC. Another effective system can be implemented: the VMR (regulated mechanical ventilation).
Regulated mechanical ventilation (VMR) prevents the passage of ducts throughout the house. It therefore offers great ease of installation and satisfactory results.
The VMR consists of air extractors installed in damp rooms. They are similar to VMI aerators except that they operate continuously and at a user-defined speed. They are less powerful and therefore less noisy.
The air circulates in all rooms: it penetrates through the vents on the windows and flows into the wet rooms from which it is extracted.