luftuttak

Luftuttak is a term used in building ventilation and HVAC to describe an opening or device through which air is transferred as part of a ventilation system. It can function as a supply outlet, delivering conditioned air to a space, or as an exhaust outlet, removing air from a space, and in some systems it serves both roles.

In buildings, luftuttak are typically integrated into ceilings, walls, or floors and are realized by components such as diffusers, grilles, or registers. The design and placement of air outlets influence air distribution, indoor comfort, energy use, and acoustics. Diffusers and grilles are commonly used for supply outlets, while exhaust outlets are positioned to effectively extract stale air, smoke, or moisture.

Common types include supply outlets (lufttilførsel), exhaust outlets (luftavtrekk), and combined or balanced outlets. Adjustable louvers, dampers, and directional vanes allow control over the air pattern and velocity. Proper sizing, throw, uniformity, and noise levels are essential considerations in selecting luftuttak for a given space, as well as the pressure drop they create in the ductwork.

Standards and codes governing luftuttak address performance, safety, and hygiene aspects of air distribution products, and designers must ensure compliance with national and international guidelines. Maintenance involves regular inspection, cleaning to remove dust and debris, and verification of damper operation and seals to preserve efficiency and indoor air quality.

See also ventilation, HVAC, air diffuser, grille, vent, and air outlet.