Summary

This report provides an overview of residential indoor air hazards in Aotearoa New Zealand, with a focus on identifying current gaps and opportunities to improve public health. Poor air quality and hazardous indoor environments are significant contributors to both communicable and non-communicable diseases, particularly in populations who spend a large proportion of their time indoors. With whānau spending approximately 70% of their time at home, exposure to indoor air hazards—such as dampness, mould, gas pollutants, lead, particulate matter, and volatile organic compounds—contribute to the burden of cardiovascular and respiratory diseases, cancers, and immune disorders.