American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) US / ASHRAE
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ASHRAE GUIDELINE 42-2023
Scope
This guide applies to spaces in commercial and institutional buildings that are occupied by humans, but does not include dwelling units in residential uses where occupants are non-transient. This guide provides recommendations for the design, installation, commissioning, operation, and maintenance of certain source and ventilation and air purification systems.