The Helios ELS EC 100 P fan insert offers two performance levels (100 and 60 m³/h) tailored for demand-controlled and basic ventilation. Equipped with an integrated presence detector, it automatically operates when occupancy is detected. The unit features adjustable start-up delays (0 or 45 seconds), turn-off delay times (6, 10, 15, or 21 minutes), and interval operation settings (0, 8, 12, or 24 hours). It connects electrically to the nearest distribution box without the need for a switch. Ready for immediate use, the fan insert boasts a flat inner alpine white façade and operates quietly thanks to ultraSilence® technology. It includes a permanent filter with an optical cleaning indicator as standard, ensuring easy maintenance and long-lasting performance.