LDS linear slotted intake ventilators can be installed on ceilings or walls. They are dedicated for the intake of both warm and cool air. Available in versions with 1 to 4 slots, available length 495 and 990 mm. Each slot is adjusted separately and is fitted with two air deflecting vanes. Their special construction allows to easily change the flow direction of the air intake. Moreover, LDS slotted intake ventilators feature easy adjustment which means they work very well in ventilation systems with variable capacity.