Most of us spend more than 90 per cent of our lives indoors. It is worth thinking more closely about air quality in our homes. This fact sheet discusses the likely sources of indoor air pollutants and the possible associated health conditions. It provides advice and actions that you can take to protect the health of people living in your home. This fact sheet will also help you make better-informed decisions about health and indoor air quality issues when discussing a new build or renovation with your architect, designer, builder or building material supplier.