Floor linear diffusers are extremely attractive air distribution devices and can be not only built into the floor, but also mounted on a wall or on a building element. Diffusers are constructed of special anodized aluminum profiles bearing the weight of the human body. They are mounted with plenum box or direct joining to the building elements. In case of floor installation, it is important to ensure option for cleaning and drainage of the elements. The air flow rate of single ventilation grille can be from 100m3/h up to 2880m3/h (from 27l/s – up to 800l/s).