CI-v5 EQp2: Fundamental Air Quality Required
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To design for above-average indoor air quality (IAQ) to support occupant health and well-being.
Requirements
Comply with the following requirements:
Investigate Regional and Local Air Quality
Investigate outdoor air quality in accordance with ASHRAE Standard 62.1-2022, Sections 4.1–4.3.
AND
Ventilation and Filtration Design
Meet the requirements of ASHRAE Standard 62.1-2022, Sections 5 and 6. Use the ventilation rate procedure, the IAQ procedure, the natural ventilation procedure, or a combination thereof. Where the ventilation rate procedure or IAQ procedure are used, comply with the following additional provisions:
Filtration
Each central HVAC system within the project’s scope of work that supplies outdoor air and/or recirculated air to regularly occupied spaces must meet one of the following:
- Minimum efficiency reporting value of 13, in accordance with ASHRAE Standard 52.2 2017; OR
- Equivalent filtration media class of ePM1 50%, as defined by ISO 16890-2016, “Particulate Air Filters for General Ventilation — Determination of the Filtration Performance.”
- In-room air-cleaning systems.
- Systems tested for effectiveness and safety per ASHRAE Standard 241-2023, Section 7.4 and Normative Appendix A. If treating for particles and gases, use systems tested for effectiveness per ASHRAE 62.1-2022, Addendum n. If treating for infectious aerosols, use systems tested for effectiveness per ASHRAE Standard 241-2023, Section 7.
Outdoor air measurement
Provide outdoor airflow measurement devices for all mechanical ventilation systems in the project scope of work with outdoor air intake flow greater than 1,000 cfm (472 L/s).
- Healthcare
For healthcare spaces, meet the requirements of Sections 6–10 of ASHRAE Standard 170 2021 as applicable.
AND
Entryway System Designs
Install permanent entryway systems to capture dirt and particulates entering the building at primary exterior entrances within the project scope of work. There is no length requirement for entryway systems.
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
To design for above-average indoor air quality (IAQ) to support occupant health and well-being.
Requirements
Comply with the following requirements:
Investigate Regional and Local Air Quality
Investigate outdoor air quality in accordance with ASHRAE Standard 62.1-2022, Sections 4.1–4.3.
AND
Ventilation and Filtration Design
Meet the requirements of ASHRAE Standard 62.1-2022, Sections 5 and 6. Use the ventilation rate procedure, the IAQ procedure, the natural ventilation procedure, or a combination thereof. Where the ventilation rate procedure or IAQ procedure are used, comply with the following additional provisions:
Filtration
Each central HVAC system within the project’s scope of work that supplies outdoor air and/or recirculated air to regularly occupied spaces must meet one of the following:
- Minimum efficiency reporting value of 13, in accordance with ASHRAE Standard 52.2 2017; OR
- Equivalent filtration media class of ePM1 50%, as defined by ISO 16890-2016, “Particulate Air Filters for General Ventilation — Determination of the Filtration Performance.”
- In-room air-cleaning systems.
- Systems tested for effectiveness and safety per ASHRAE Standard 241-2023, Section 7.4 and Normative Appendix A. If treating for particles and gases, use systems tested for effectiveness per ASHRAE 62.1-2022, Addendum n. If treating for infectious aerosols, use systems tested for effectiveness per ASHRAE Standard 241-2023, Section 7.
Outdoor air measurement
Provide outdoor airflow measurement devices for all mechanical ventilation systems in the project scope of work with outdoor air intake flow greater than 1,000 cfm (472 L/s).
- Healthcare
For healthcare spaces, meet the requirements of Sections 6–10 of ASHRAE Standard 170 2021 as applicable.
AND
Entryway System Designs
Install permanent entryway systems to capture dirt and particulates entering the building at primary exterior entrances within the project scope of work. There is no length requirement for entryway systems.