Air Quality
While the excellence of our environmental air has been a concern for decades, emphasis has now fallen on the quality of indoor air, the air in our homes, air that often contains substances that can irritate our allergies or make us sick.
Research declares that indoor air is often far more polluted than outdoor air, and that many of the particulates commonly found in indoor air are known irritants. About 99% of these irritants cannot be seen with the naked eye.
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