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No generation before us has spent as much time indoors as we do today. It’s therefore no surprise that studies — including those from the World Health Organization (WHO) — highlight the indoor environment as a major contributor to our overall health. High levels of indoor air pollution contribute to millions of premature deaths every year, often linked to respiratory and cardiovascular diseases. Mechanical ventilation directly addresses this issue by continuously diluting and

In a residential context, air change rates are predominantly based on the number of occupants in a room or home. This means that whether a bedroom is 15 or 30 m² in size doesn’t really matter — what matters is how many people occupy it. For new homes, the number of ventilation units is driven by the requirements of the National Construction Code (NCC). You can also refer to our NCC 2022 Mechanical Ventilation Calculator for homes and apartments. In existing homes, you have mu

Most Australian homes are equipped with some form of heating and/or cooling. Whether it’s a ducted system, a wall‑mounted split unit, or a ceiling cassette, the principle is usually the same: the system recirculates the air already inside the home. While effective at controlling temperature, these systems typically do not expel stale air or introduce fresh outdoor air. Mechanical ventilation systems with heat recovery work very differently. Their primary role is to provide a

One of the key advantages of decentralised ventilation systems is their versatility: they can be installed in both new-build homes and retrofitted into existing properties. Each unit is installed through an external wall and serves an individual room, such as a bedroom, bathroom, or study. Installation requires a single 160 mm wall penetration, which may be suitable for competent DIY installation or can be completed by an electrician. Hard-wiring must be carried out by a lice