Description
Directional holes with a diameter less than the thickness of the fabric are a design patented by Příhoda s.r.o. They provide a number of advantages when used for surface air supply at low speed.
The direction of air flow in the duct causes deflection in the diffused air pattern.
Perpendicular air output along the whole length of the diffuser
The area is unevenly ventilated
Even space ventilation
This creates areas with different air velocities and temperatures