The Building Code of Australia requires the installation of smoke walls in buildings to inhibit the transfer of smoke from one compartment to another, from a compartment to a required exit and protection of paths of travel to an exit. A building surveyor/building certifier would nominate smoke walls in the essential safety measures determination/ schedule.
Building Code of Australia
Part C2 Compartmentation and Separation, stipulates the use of smoke walls in different situations and nominates Specification C2.5 Smoke Proof Walls in Health Care and Aged Care buildings for compliance.
The following illustration depicts smoke doors in smoke walls of a health and aged care building.