Indoor air pollution – is it a problem? Everyone knows about air pollution affecting urban areas and industrial regions. Mexico City and Southeast Asia have hit the headlines. But wherever there are cities and industry there is pollution, from industrial effluents and the omnipresent automobile.

But indoors? The fact is that indoor air can be one hundred times more polluted than outdoor air. As the majority of people spend up to 90% of their time indoors, this is a cause for concern. (more…)