How do we know that increased problems with asthma and sinus allergies are largely a result of the Indoor Air Quality epidemic?
Asthma and sinus allergy problems took a sharp turn for the worse about 20 years ago. Not coincidently, houses and buildings began to be constructed in an air-tight fashion at about this time in an effort to gain more energy-efficiency, as a result of the energy crisis of the 1970s. However, more and more studies are showing that this tight construction is creating an extremely unhealthy environment for breathing, by trapping pollutants indoors, while keeping natural air-cleansing agents out. We are also finding out that asthma problems are much more a result of environmental triggers than anything else, and most people spend more than 90% of their time inside, which means that indoor air pollutants affect our health far more than outdoor air pollutants.
