The aim of F6D12 is to:

• reduce the prevalence of airborne fats, etc building up, and causing health and fire problems;
• reduce steam and smoke from cooking processes; and
• maintain the flow of air to reduce potentially obnoxious odours.

The figures in F6D12(a) relate to the size of any electrical or gas cooking apparatus, which may cause these problems.

The figures in F6D12(b) relate to the ratio of electrical or gas cooking apparatuses to room size, which may cause these problems.

The Deemed-to-Satisfy Provisions require exhaust hoods to comply with both AS 1668.1 and AS 1668.2.