Helios Fans LFBR 250 G4

The Helios LFBR 250 G4 is a robust inline air filter unit designed for circular duct installations in ventilation systems. It features a galvanized sheet steel casing with double-lip rubber-sealed spigots at both ends to ensure secure duct connections. The unit houses a synthetic fibre filter mat rated ISO Coarse 70% / G4, offering reliable protection against coarse dust particles. With a dust storage capacity of 122 g/​m², the filter maintains efficient airflow while minimizing pressure loss. It is temperature resistant up to +100°C and fire-resistant in accordance with DIN 53438 F1. The self-extinguishing filter mat can be regenerated 10 – 15 times, making it a cost-effective and environmentally friendly choice. An access panel with a clamp allows for quick and easy filter replacement.