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Environmental and Workplace Health

Mould, Dampness and Humidity

Glossary

Since moisture promotes mould growth, dampness is one of the most common causes of poor indoor air in homes, classrooms and public spaces. Controlling the level of moisture is one of the best and easiest ways to improve indoor air and protect your health.

This section provides detailed information about mould and the effects it can have on your health. It also offers tips for how you can remove mould, prevent future growth and improve the quality of your indoor air.

Health Canada helps protect Canadians from the effects of mould by conducting research and by providing information about healthy indoor air.

Mould on wall
Photo: Architectural Diagnostics Ltd.

Did you know?

Moulds are fungi that grow in damp environments, and allergic people who come into contact with them can experience reactions and respiratory problems.