[teapot01]

> The in unit smoke detectors can be triggered to warn occupants

This is specifically because the National Construction Code (NCC) requires multiple occupancy buildings to have certain fire safety infrastructure that generally includes a 2 hour fire separation between different occupancy units. This gives a buffer to all other occupants.

> There are also smoke detectors in the hallway. If a detector is triggered in a common area this has the potential to affect the escape routes of multiple occupants so it triggers an immediate fire alarm.

Australian fire safety rules are some of the best in the world.