The Helios ELF-ALB 40/20 M5 is a high-quality synthetic filter designed for effective filtration of coarse and medium particulate matter in ventilation systems. Made from durable synthetic filter fleece and framed with strong Fiberplast material, this filter complies with DIN EN ISO 16890 standards. With a classification of ISO ePM10 70%/M5, it is well-suited for capturing dust and larger airborne particles, making it ideal for residential, commercial, and industrial HVAC applications. The ELF-ALB 40/20 M5 supports better indoor air quality while protecting system components from particulate buildup.