ANSI/ASHRAE 62.1-2019: Ventilation for Acceptable Indoor Air Quality
ANSI/ASHRAE Standard 62.1-2019: Ventilation for Acceptable Indoor Air Quality establishes minimum requirements for ventilation system design, installation, and maintenance in commercial and institutional buildings. This standard is a foundational reference for achieving acceptable indoor air quality (IAQ) and reducing health risks associated with poor ventilation.
Highlights:
- Updated Ventilation Rate Procedure with enhanced zone-level calculation methods
- Revised Natural Ventilation Procedure, including outdoor air quality and mechanical integration
- Prohibits use of ozone-generating air-cleaning devices
- Requires humidity control using dew point rather than relative humidity
- Separates patient care areas now governed under ASHRAE/ASHE Standard 170
- Clarifies definitions for spaces, ventilation zones, and contaminant sources
- Outlines requirements for design documentation, commissioning, and IAQ performance testing
- Includes appendices with ventilation rate rationale, IAQ procedures, and engineering tools
Who It’s For:
A critical reference for mechanical engineers, HVAC designers, facility managers, and code officials involved in ensuring compliant ventilation design and indoor air quality performance.
ASHRAE-62.1-2019
ANSI/ASHRAE 62.1-2019: Ventilation for Acceptable Indoor Air Quality
ANSI/ASHRAE Standard 62.1-2019: Ventilation for Acceptable Indoor Air Quality establishes minimum requirements for ventilation system design, installation, and maintenance in commercial and institutional buildings. This standard is a foundational reference for achieving acceptable indoor air quality (IAQ) and reducing health risks associated with poor ventilation.
Highlights:
- Updated Ventilation Rate Procedure with enhanced zone-level calculation methods
- Revised Natural Ventilation Procedure, including outdoor air quality and mechanical integration
- Prohibits use of ozone-generating air-cleaning devices
- Requires humidity control using dew point rather than relative humidity
- Separates patient care areas now governed under ASHRAE/ASHE Standard 170
- Clarifies definitions for spaces, ventilation zones, and contaminant sources
- Outlines requirements for design documentation, commissioning, and IAQ performance testing
- Includes appendices with ventilation rate rationale, IAQ procedures, and engineering tools
Who It’s For:
A critical reference for mechanical engineers, HVAC designers, facility managers, and code officials involved in ensuring compliant ventilation design and indoor air quality performance.
ASHRAE-62.1-2019
ANSI/ASHRAE 62.1-2022: Ventilation for Acceptable Indoor Air Quality
ANSI/ASHRAE Standard 62.1-2022: Ventilation for Acceptable Indoor Air Quality defines minimum requirements for mechanical and natural ventilation systems in commercial, institutional, and industrial buildings. Widely referenced by model codes such as the International Building Code, this standard is critical for achieving acceptable indoor air quality (IAQ) in non-residential environments.
Highlights:
- Defines procedures for assessing outdoor air quality and ventilation by occupancy type
- Revised Section 5 reorganizes systems/equipment content by airflow path
- Updates IAQ Procedure with design compound guidance and mass-balance modeling
- Establishes separation distances for exhaust air and dew point limits for cooled spaces
- Classifies ventilation zones and defines airflow effectiveness and breathing zone metrics
- Covers design, installation, commissioning, and maintenance of ventilation systems
- Includes appendices for healthcare settings, air quality evaluation, compliance paths, and simplified rate calculations
- Incorporates addenda through Appendix Q as part of its continuous maintenance model
Who It’s For:
Designed for mechanical engineers, HVAC professionals, code officials, and facility managers responsible for designing and maintaining compliant ventilation systems that promote occupant health and comfort.
ASHRAE 62.1-2022
ANSI/ASHRAE 62.1-2022: Ventilation for Acceptable Indoor Air Quality
ANSI/ASHRAE Standard 62.1-2022: Ventilation for Acceptable Indoor Air Quality defines minimum requirements for mechanical and natural ventilation systems in commercial, institutional, and industrial buildings. Widely referenced by model codes such as the International Building Code, this standard is critical for achieving acceptable indoor air quality (IAQ) in non-residential environments.
Highlights:
- Defines procedures for assessing outdoor air quality and ventilation by occupancy type
- Revised Section 5 reorganizes systems/equipment content by airflow path
- Updates IAQ Procedure with design compound guidance and mass-balance modeling
- Establishes separation distances for exhaust air and dew point limits for cooled spaces
- Classifies ventilation zones and defines airflow effectiveness and breathing zone metrics
- Covers design, installation, commissioning, and maintenance of ventilation systems
- Includes appendices for healthcare settings, air quality evaluation, compliance paths, and simplified rate calculations
- Incorporates addenda through Appendix Q as part of its continuous maintenance model
Who It’s For:
Designed for mechanical engineers, HVAC professionals, code officials, and facility managers responsible for designing and maintaining compliant ventilation systems that promote occupant health and comfort.
ASHRAE 62.1-2022