Today, indoor air quality (IAQ) is an important environmental consideration. Because we spend approximately 90 percent of our time indoors, we must do everything possible to improve the air we breathe. During the energy crisis of the ’70s, Americans began to tightly close their workplaces and homes in order to conserve energy resources. Currently, many families have both parents working, with less cleaning time in the home. Ventilation and cleanliness play important parts in …
air conditioners, air conditioning, central air unit
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