Slot diffusers are used for supply of hot or cold conditioned air from the ventilation ducts to the ambiances such as office, meeting room, shop or for extraction of the polluted air from these ambiances. They are directly installed onto the plenum box and manufactured with 1, 2, 3, 4 slots. Each slot has two deflection blades that are capable of preventing internal turbulences and the direction of the air flow can be adjusted via these blades. Besides this, they are ideal for places that have ceiling heights between 2,6 - 4 mt.