Indoor environment control


House dust mites and mould – two of Australia’s leading asthma and allergies triggers – thrive in humid conditions. A dry, well-ventilated home can help your family breathe easier.

A relative humidity of around 30 to 50 percent is comfortable for most people. Air flow levels and temperature tend to be more of a personal preference.

There are many, many different options that can help. Air-conditioners, dehumidifiers, humidifiers and heaters will be more effective where they have an appropriate capacity for the area, are left on, windows and doors are shut and homes are reasonably well sealed.

The key is to know which allergic triggers affect your family and what space you’re dealing with.


If you aren’t sure what your triggers are, our handy guide can help point you in the right direction.

Healthy home factsheets

For great tips and advice on managing your asthma and allergies as well as how to create a healthy home, visit our factsheet library that includes:

Approved products

Check out the approved products and services that may help you control your indoor environment.

Explore other areas of your home