What are indoor air contaminants?

Here are examples of common indoor air contaminants and their main sources: •Carbon dioxide (CO2), tobacco smoke, perfume, body odours – from building occupants. •Dust, fibreglass, asbestos, gases, including formaldehyde – from building materials. •Toxic vapours, volatile organic compounds (VOCs) – from workplace cleansers, solvents, pesticides, disinfectants, glues. •Gases, vapours, odours – off-gas emissions from furniture, carpets, and paints. •Dust mites – from carpets, fabric, foam chair cushions. •Microbial contaminants, fungi, moulds, bacteria – from damp areas, stagnant water and condensate pans. •Ozone – from photocopiers, electric motors, electrostatic air cleaners.