A Foundational IAQ explainer suitable for education, policy, and decision-making

Introduction - IAQ Basics

What is Indoor Air Quality?

IAQ refers to the condition of the air inside buildings and enclosed spaces, particularly as it relates to the health, comfort, safety, and performance of occupants. Indoor air quality  (IAQ) is no longer a technical afterthought. It is a core determinant of public health, building performance, energy efficiency, and long-term sustainability.

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The Clean Air Associates Knowledge Centre is a structured resource for decision-makers, engineers, consultants, facility managers, and policy leaders seeking clear, evidence-based guidance on indoor air quality (IAQ) in the built environment.

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This Knowledge Centre brings together:

• IAQ science and fundamentals

• Proven implementation and best-practice guidance

• Independent testing and validation data

• Policy, ESG, and Net Zero frameworks

• Expert answers to real-world IAQ questions

• Sector-specific guidance for healthcare, hospitality, offices, education, and government buildings

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All content is grounded in peer-reviewed research, international standards (ASHRAE, WELL, LEED), and real-world HVAC air purification deployment experience across complex buildings and demanding climates.

Whether you are designing a new facility, upgrading an existing building, or shaping national policy, this Knowledge Centre provides the clarity required to make informed, defensible decisions about indoor air.​

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The Clean Air Associates Knowledge Centre is designed as a single source of truth for indoor air quality (IAQ) - bridging science, engineering, policy, and real-world application.

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Unlike traditional blogs or marketing libraries, this Knowledge Centre is:

• Evidence-led, not opinion-based

• Performance-focused, not product-centric

• Aligned with global standards, not regional shortcuts

• Written for decision-makers, not consumers

 

It reflects the growing recognition that indoor air quality (IAQ) is:

• A public health infrastructure issue

• A core ESG and Net Zero lever

• A determinant of productivity, cognition, and wellbeing

• A strategic asset for buildings and nations

• Reflects IAQ Health Impacts

 

From indoor air quality fundamentals such as indoor air pollution to advanced system design, from testing and validation to policy alignment, the Knowledge Centre equips stakeholders with the knowledge needed to design, implement, measure, and govern clean indoor air at scale.