Contamination of indoor air is considered to be a serious problem because of the amount of indoor pollutants that may have adverse effects on the human respiratory system.

Effects experienced by humans include: acute and chronic symptoms, increase in acute respiratory illness and a decline in lung function, especially in individuals with chronic diseases.

Some risks were simply unavoidable in the past. We might have tried to avoid them if we had the opportunity to make informed choices. Source removal is the first and most logical form of control. Reduction of exposure includes standard direct methods such as ventilation cleaning and more efficient filtration.

In past years, a growing number of scientific evidence has indicated that air within HOMES AND OTHER BUILDINGS can be more seriously polluted than outdoor air.
Fortunately, there are steps that most HOUSEHOLDS AND OFFICE BUILDINGS can take to both reduce the risk from existing sources and prevent new problems from occurring.