Most occupations adhere to standards of safety or quality that are developed over many years, and designing interior building systems is no exception. The American Society of Heating, Refrigeration, and Air-Conditioning Engineers, Inc. (ASHRAE) is an organization that produces updated standards and guidelines for jobs involving central systems in buildings. The guidelines are not guaranteed to prevent accidents or eradicate risks, but are generally considered the best ways to prevent undesirable occurrences. The ASHRAE 12-2000 Guideline, entitled Minimizing the Risk of Legionellosis Associated with Building Water Systems, focuses on what architects, construction companies, and maintenance employees…