Noise and drafts – the result of poor distribution
The efficiency of a ventilation system depends on its last meter. Often, homeowners invest in expensive heat recovery units, but forget that air must enter the room evenly. If ducts are connected directly and unprofessionally to the grilles, you will hear whistling in the room, and feel an unpleasant draft when sitting under the diffuser.
Improperly chosen connections also cause aesthetic problems. Poorly secured branches in plasterboard ceilings eventually loosen, and dark dust streaks appear around the diffusers due to air leakage. This means ruined interior design and extra costs for cosmetic repairs.
An invisible but essential element of comfort
Plenum boxes solve all airflow distribution problems. Installed above ceilings or under floors, they act as air dampening chambers. Air blowing at high speed from the flexible duct enters the spacious box, slows down, and is released into the room in a pleasant, even flow.
High-quality boxes make ventilation completely unnoticeable. They are firmly fixed to the slab, so decorative diffusers always remain perfectly flush with the ceiling. You enjoy fresh air and complete silence, even when the system is operating at maximum capacity.
A properly selected plenum box reduces air velocity before the room, helping you avoid aerodynamic noise and drafts, while keeping your home interior flawless.






