The Helios BAE 125 is a fire and smoke shutter engineered to block the spread of fire and smoke within ventilation shafts or walls designated as fire sections. It meets the fire resistance standard K90-18017, ensuring reliable protection. The shutter is compatible with spiral ducting installations or wall mounting when used with the optional EH mounting sleeve. Designed for long-lasting performance, the BAE 125 requires no maintenance, making it a dependable choice for enhancing fire safety in ventilation systems.