In the last three decades there has been an increasing emphasis on the importance of the use of fidelity assessment on improving the science of psychological, social, and behavioral research.
A cleanroom is an area or enclosure in which the air has to be cleaned to a defined particle limit, usually in particles per cubic foot. In the United States most cleanrooms are discussed in terms of Classification Limits.
Cleanroom furniture is designed to produce a minimum of particles and is easy to clean. Common materials such as paper, pencils, and fabrics made from natural fibers are often excluded, and alternatives used.