HAES
Practical guides on fire alarms, extinguishers, emergency lighting and UK fire safety rules, written for installers, contractors and building managers.

AOV
What Is an AOV System? Automatic Opening Vents Explained
An AOV (automatic opening vent) system opens vents automatically when smoke is detected, helping to keep stairwells, lobbies and corridors clearer so people can escape. Here is how AOV systems work, what they are made of and when they are...
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