The Helios ELF-ALB 30/20 G4 is a reliable synthetic air filter designed for high dust absorption. Constructed from synthetic filter fleece and housed in a robust Fiberplast frame, this filter meets DIN EN ISO 16890 standards. With an ISO Coarse 90%/F4 classification, it effectively captures coarse particles, providing excellent filtration for a wide range of ventilation systems. Ideal for environments where general air quality is important, the ELF-ALB 30/20 G4 ensures efficient airflow while protecting HVAC systems from dust and debris.