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ASHRAE Design Guide for Cleanrooms provides the information needed for successful cleanroom projects. Designers, builders, owners, operators and managers of cleanrooms will find this book an indispensable resource. The guide begins with fundamentals such as cleanroom classification and airflow, standards and guidelines for cleanroom design, and sources of contaminants inside cleanrooms, including separate chapters on airborne particulate contaminants, surface particulate contaminants, airborne molecular contaminants, liquid-borne contaminants, and microbial contaminants. From there, guidance proceeds to specific recommendations on design of environmental control systems, covering planning and concerns such as contamination control, site selection and services requirements, critical flow arrangements, architectural considerations, indoor environmental quality, outdoor emission control and in great detail of HVAC, electrical and control systems'selection and design. Additional chapters discuss electrical, control, and lighting systems, as well as using computational fluid dynamics (CFD) to assist in cleanroom design. Finally, dedicated chapters address cleanroom testing and certification, qualification, commissioning, and the needs of cleanrooms in specific facility types, such as semiconductor and electronics, pharmaceutical, biotechnology and health care, and food processing.