In a building fire, smoke poses a far more immediate threat to human life than flames. Toxic gases and dense smoke can fill corridors and escape stairwells within minutes—disorienting occupants and completely severing evacuation routes. This is where Automatic Opening Vent (AOV) systems become vital. As a critical component of active fire safety in multi-storey residential blocks, commercial facilities, and complex public buildings, AOVs automatically clear heat and smoke from key zones. By keeping escape pathways visible and breathable, they protect fleeing occupants while granting fire and rescue teams safe access to control the blaze.