Helios Fans BLS 300/150 Note: FREE Click & Collect
The Helios BLS 300/150 is a robust ventilation unit designed for both supply and extract air functions in enclosed areas where fire and smoke containment is essential. It ensures continuous airflow to prevent dangerous heat buildup and achieves fire resistance ratings from F30 to F120 in accordance with DIN 4102 standards. With no moving components, the u ...