Indoor Environmental Quality (IEQ) Resources

This page provides resources about Indoor Environmental Quality (IEQ), designed specifically 
for building owners, occupants, and policy makers.

New! Infection Control Resources

Explore the newest addition to ASHRAE’s IEQ Resource: Infection Control. This page brings together resources, guidance documents, and reference materials to help building professionals, facility managers, and engineers learn about infection control in the built environment.  

Visit infection control Resources

ASHRAE wishes to recognize Climate Control Group as a major patron and
sponsor to the ASHRAE President’s leadership messages.

Now Available!
O&M Best Practice Checklists are now available for the following topics.
Acoustics | IAQ | Lighting | Thermal Comfort | Water | Microbiomes

Explore Key Topics on Indoor Environmental Quality (IEQ)

IEQ Roles

Click to learn about the various roles that must collaborate to support Indoor Environmental Quality (IEQ), and the level of involvement each one brings to the process.

📌 ASHRAE announces Seed Document RFP for the development of New Standard – BSR/ASHRAE Standard 235P, Indoor Environmental Quality (IEQ) in Buildings

ASHRAE is pleased to solicit proposals for the development of a New Standard – BSR/ASHRAE Standard 235P, Standard for Indoor Environmental Quality (IEQ) in Buildings to establish a comprehensive framework for evaluating and supporting acceptable IEQ across buildings. It will address multiple environmental factors – such as air quality, thermal conditions, lighting, acoustics, and building or system characteristics that influence occupant health, well-being, and performance. If you intend to submit a proposal, please notify Leigh Lain Walker, by Monday, June 29th, 2026 via email (lwalker@ashrae.org) so that any late or additional information on the RFP may be furnished to you prior to the final bid deadline of Monday, July 13, 2026. Click here to learn more and access the full RFP.

Other Resources

Healthier Workplaces & Schools eBooks, Second Edition
Free eBook on different approaches to help mitigate the risk of spreading airborne infectious diseases depending on your workplace setting. 

Click to to access

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Tech Hour #9:  IEQ – Codes, Impact on People, and Considerations

Indoor Environmental Quality (IEQ) in buildings directly impacts human health, well-being, and performance. These conditions are a major part of how people experience the buildings that we inhabit, but they are currently minimally codified and rarely commissioned. This seminar will highlight how indoor air quality, thermal comfort, lighting, and acoustics can affect building occupants. Learn how existing codes and guidelines can be used to design and construct better buildings to serve the community, where research has identified areas to optimize the performance to meet the needs and expectations of the building occupants, and how you can help construct high-performance spaces.

Click here to watch

2025-26 Committee Members

Information on these pages is provided as a service to the public. While every effort is made to provide accurate and reliable information, this is advisory, is provided for informational purposes only. These are not intended and should not be relied upon as official statements of ASHRAE.