Sufficient epidemiological evidence is available from studies conducted in different countries and under different climatic conditions to show that the occupants of damp or mouldy buildings, both houses and public buildings, are at increased risk of respiratory symptoms, respiratory infections and exacerbation of asthma this is taken from the summary of the WHO report GUIDLINES FOR INDOOR AIR QUALITY DAMPNESS AND MOULD. This study from experts from around the world confimrs that people living in damp and mouldy conditions can suffer from health problems.