Much of this problem is attributed to the way modern homes are built—for purposes of energy efficiency, and to be as air-tight as possible. The consequence is that stale air, laced with odors, chemicals, irritants – even miniscule insects – often becomes trapped in modern homes, where it circulates over and over. This can lead to eye irritation, sinus congestion, sneezing, runny nose, stuffiness, colds, flu, headaches, dizziness, outbreaks of allergies and asthma, sore throats, and various other respiratory ailments.
So serious and prevalent is this issue that environmentalists have coined a new term for it—IAQ or Indoor Air Quality. Today’s homeowners need to become more aware of the importance of IAQ and what they can do about it.