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.
cleaner. 1  a person who cleans, especially one whose regular occupation is cleaning offices, buildings, equipment, etc. 2  an apparatus or machine for cleaning, as a vacuum cleaner. 3  a preparation for use in cleaning, as a detergent or chemical bleach.