Common causes of indoor mould include:
Mould may be black, brown, or green. It may look fuzzy or patchy. Watch for signs of mould such as:
To stop mould from growing indoors, you need to control indoor moisture. This is why it’s important for homes and other buildings to be properly built and maintained. Here’s what you can do:
Keep your home well ventilated (allow air to move around) and control humidity. Below are some ways you can control humidity:
Current as of: February 18, 2021
Author: Environmental Public Health, Alberta Health Services
This material is not a substitute for the advice of a qualified health professional. This material is intended for general information only and is provided on an "as is", "where is" basis. Although reasonable efforts were made to confirm the accuracy of the information, Alberta Health Services does not make any representation or warranty, express, implied or statutory, as to the accuracy, reliability, completeness, applicability or fitness for a particular purpose of such information. Alberta Health Services expressly disclaims all liability for the use of these materials, and for any claims, actions, demands or suits arising from such use.