As buildings have become tighter with improved building envelope systems and inoperable windows to minimize energy use, IAQ and IEQ have become primary considerations for professional engineers and architects.
Air cleaning has become a necessity over the past couple of years because of the pandemic. Whether it be in offices, schools, health care facilities or residential buildings, air cleaning has become a primary focus. People want to be assured they are in facilities where the air is not harmful to breathe.
For years, professionals have looked at IAQ and indoor environmental quality (IEQ) criteria when designing new and retrofit facilities. A primary goal of an IAQ/IEQ and air-cleaning program is to minimize occupant exposure to pollutants from air contaminants that generally fall into one of these categories: biological contaminants, chemical pollutants, particulates, and organic and inorganic dust.