An automatic opening vent (AOV) is a system that is designed to vent out smoke or air for use in smoke or natural ventilation. These systems are used majorly to control the ventilation of smoke. They are not only regulated by law, but are also important in saving peoples’ lives in case of fire. These devices help to avoid smoke build up in a building thereby, aiding the occupants and fire rescue team who have entered the building during the process. They also clear the air for people who are evacuating the building.
How do they work?
These systems are integrated into a complete natural system where they work together to clear the building of any smoke especially if there is an emergency. Normally, they are put at the top of an escape route or at the highest points of a smoke shaft. They, therefore, enable the smoke to travel out of the building. Upon detection of fire, automatic opening vents open automatically. This occurs through the smoke detectors that are often fitted on every floor of the building. The good thing about them is that they will open automatically once they have detected fire.

