Improving Ventilation in Homes, Offices, and Everything in Between - Standard 62.1-2019 and Standard 62.2-2019 ANSI/ASHRAE Standards 62.1 and 62.2 are the recognized standards for ventilation system design and acceptable IAQ. Expanded and revised for 2019, both standards specify minimum ventilation rates and other measures in order to minimize adverse health effects for occupants. Since 1973, Standard 62 has helped designers, builders, manufacturers and operators ensure projects are designed according to the latest requirements. Standard 62.1-2019 - Ventilation for Acceptable Indoor Air Quality Standard 62.2-2019 - Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings ashrae.org/standard62http://www.ashrae.org/standard62