The Helios Fans KWL 45 – 160 FB‑B is a durable stainless steel façade panel designed for use with the KWL EC 45 – 160 decentralized ventilation unit. It features a protective coating that makes it ideal for installations in areas with heavy air pollution or elevated salt levels, such as coastal regions. Engineered for long-lasting performance, this panel helps safeguard the ventilation system in harsh environmental conditions.