The Helios ABV 100 is a high-quality ventilation fan system designed for efficient air circulation in various rooms. With an elegant design made of alpine white plastic, the ventilation grille blends harmoniously into any environment. The electrically operated louvres allow flexible adjustment of the air flow, whereby the opening angle can be continuously adjusted between 15 and 80 degrees. This ensures targeted ventilation that fulfils individual requirements. The Helios ABV 100 does not have its own fan. It is merely a motorised exhaust air valve / ventilation grille. Air is therefore not actively conveyed. It has electrically operated louvres that open and close. It is controlled via a switch, usually linked to the light switch.