The quality of the air we breathe during our work can affect our health, comfort, and productivity. This course will help you understand the factors that contribute to good indoor air quality (IAQ) in offices and non-industrial workplaces. It describes 'sick building syndrome' and its causes, such as poor distribution of fresh air, pollutants originating inside and outside the building, and humidity. The course provides practical advice on how to investigate and respond to indoor air problems. The course was developed by the Canadian Centre for Occupational Health and Safety (CCOHS).