Celebrating 125 Years

IAQ 2020: Indoor Environmental Quality Performance Approaches

Transitioning from IAQ to IEQ

Share This


IAQ 2020: Indoor Environmental Quality Performance Approaches

Transitioning from IAQ to IEQ

September 13-15, 2021 | Athens, Greece

IAQ 2020 Rescheduled

After careful consideration by the Steering Committee and from input by authors, ASHRAE and AIVC have decided to postpone the conference, which was scheduled for September 14-16, 2020 in Athens, Greece.

The IAQ 2020 conference is being postponed by one year to September 13-15, 2021 as a face-to-face conference in Athens, Greece.

The Steering Committee has decided to make environmental impacts of COVID19 a part of the conference.  See the Topics list below.   Because of the postponement, a new call for submissions will be opened.  Already accepted abstracts and submitted papers will be kept valid for the new conference dates.


The conference is organized by ASHRAE and AIVC and will take place in Athens, Greece. The conference will also be the 9th TightVent and 7th venticool conference. Indoor Air Quality (IAQ) has been the core of ASHRAE’S IAQ series of conferences for the past 30 years.  This conference will expand from Indoor Air Quality to Indoor Environmental Quality (IEQ).  IEQ includes air quality, thermal comfort, acoustics, and illumination and their interactions.  The particular focus of this conference is on performance approaches including the metrics, systems, sensors and norms necessary to implement them.


  • Health and Well-being: Appropriate technical and operational definitions
  • Performance Metrics: For all aspects of IEQ
  • Interactions: Interactions between IEQ parameters
  • Occupant Behavior: How behavior impacts IEQ and how IEQ impacts behavior - psychological dimensions of IEQ
  • Smart Sensors and Big Data: Sensor properties, data management, cybersecurity, applications
  • Smart Controls: Equipment properties, commissioning, equivalence
  • Resilience and IEQ: Responding to climate change and disasters
  • Ventilation: Mechanical, passive, natural and hybrid systems
  • Air Tightness: Trends, methods and impacts
  • Thermal Comfort: Dynamic approaches, health impacts and trends
  • Policy and Standards: Trends, impacts, implications
  • Role of ventilation and building airtightness in epidemic preparedness
  • Filtration and disinfection options to control COVID19.
  • Face-covering impacts on indoor air quality
  • HVAC and IEQ in a post-COVID world
  • Call for Papers
    Call for Papers

    Submit an Abstract

    Submit Abstract

    Submission of new abstract, December 21, 2020
    Notification of decision of abstract, February 15, 2021
    Submission of complete manuscript, April 19, 2021
    Final paper acceptance, June 14, 2021

    Why Publish With ASHRAE?

    ASHRAE authors enjoy benefits that include:

    • No publication charges
    • Interaction with other researchers
    • Authors of accepted papers may be invited to submit expanded papers for publication consideration in Science and Technology for the Built Environment, ASHRAE's journal for archival research.
    • Papers will be submitted papers to the following Citation, Indexing and Abstracting Services for evaluation  (Acceptance is not a guarantee)
      • Clarivate Analytics Web of Science’s Conference Proceedings Citation Index (CPCI)
      • Elsevier's Scopus and Compendex
      • Elsevier's Ei Engineering Village’s Ei Compendex and Engineering Index
      • ProQuest Technology Research Databases: Cambridge Scientific Abstracts Materials Research Database with METADEX, Cambridge Scientific Abstracts Engineering Research Database, Cambridge Scientific Abstracts High Technology Research Database with Aerospace and ProQuest Central

    For more information, contact hblauridson@ashrae.org.

  • Keynote Speakers
    Philomena Bluyssen
    Professor of Indoor Environment, TU Delft


    All You Need to Know about IEQ and the SenseLab

    Research shows that, even when conditions comply with current standards for indoor environmental quality (IEQ), staying indoors is not good for our health. IEQ is described with quantitative dose-related indicators, expressed in numbers and/or ranges of numbers for each of the factors. Stressors and factors, whether of a psychological, physiological, personal, social or environmental nature, are rarely considered, let alone differences in needs and preferences of individual occupants. Lack of knowledge combined with improper use of available data hampers creating a healthy and comfortable indoor environment. There needs to be an integrated analysis approach for assessing indoor environmental quality, which takes account of the combined effects of positive and negative stress factors in buildings on people, interactions, the preferences and needs of occupants, and dynamics of the environment. The SenseLab has been created to facilitate the understanding of the indoor environment, and it allows students, teachers, researchers, and the general public to experience and test different combinations of environmental conditions.

    Richard de Dear, Ph.D.
    Director, Indoor Environmental Quality Laboratory, University of Sydney


    20 Year Update on ASHRAE’s Adaptive Thermal Comfort Model

    It’s been two decades since ASHRAE’s TC 2.1, Physiology and Human Environment, published its adaptive thermal comfort model (RP-884), which went on to become part of ASHRAE Standard 55 (Thermal Environmental Conditions for Human Occupancy) in 2004 and was adopted by standards-setting organizations around the world. A 2018 update and expansion of the RP-884 global thermal comfort database prompted a rigorous quality assurance exercise on the first-generation adaptive comfort standards. . Results from comfort questionnaire records validated ASHRAE Standard 55’s current adaptive comfort model for naturally ventilated premises. There was sufficient data to also develop a mixed mode adaptive model closely aligned to the naturally ventilated counterpart, contradicting ASHRAE 55’s current treatment of mixed mode buildings as the same as conventionally air-conditioned buildings. Adaptive comfort effects were observed universally in all regions represented in the 2018 global comfort database, but for comparable outdoor climates, the neutral temperatures in naturally ventilated and air-conditioned buildings in the Asian subset trended 1~2 °C higher than their Western counterpart.

    Mariana Figuiero
    Director of the Lighting Research Center, Rensselaer Polytechnic Institute


    Overview of the Health Effects of Light in the Built Environment: More than Just Vision

    Biological rhythms that repeat approximately every 24 hours are called circadian rhythms. Light-dark patterns on the retina help the circadian clock, and thus circadian rhythms, to synchronize with the 24-hour day. If lack of synchrony or circadian disruption occurs, we may experience decrements in physiological functions, neurobehavioral performance, and sleep. Lighting characteristics affecting the circadian system are different than those affecting vision, and yet, all lighting standards and metrics are based on visibility. Humans in the built environment are exposed to constant dim light, rather a robust light-dark pattern typically found outdoors. Data from laboratory investigating how circadian-effective light can improve sleep, mood and behavior in older adults with dementia, office workers, nightshift and dayshift nurses, cancer and patients and traumatic brain injury patients will be presented. This presentation will also discuss what lighting changes are needed in the built environment to promote health and well-being.

    Dr. Benjamin Jones
    Associate Professor, University of Nottingham


    The Acceptability of Air Quality in Domestic Kitchens

    Cooking food is a primary source of fine particulate matter (PM2.5), acrolein, and NO2 in non-smoking homes, which are associated with elevated risks of acute and chronic health effects. Health impact studies show that PM2.5 is the most dangerous indoor pollutant. However, complete source removal is not entirely possible, so the rate that cooking emits these pollutants, cooking and preparation methods, and ventilation strategies used in a domestic kitchen must be evaluated.

    This talk will consider two methods for measuring uncertainty in cooking PM2.5 emission rates and use them to evaluate three ventilation strategies commonly used in domestic kitchens. It will show that using a cooker hood is the most effective ventilation strategy when used during and shortly after cooking. It intends to show that standards should be amended to incorporate required combinations of airflow rates and cooker hood capture efficiencies, and to consider methods of measuring cooker hood capture efficiency. Finally, it will show how simple changes to the way we cook can further minimize exposure to PM2.5.

    Cath Noakes, PhD, FIMechE, FIHEEM
    Professor of Environmental Engineering for Buildings, University of Leeds


    Controlling Infection Risk through Healthcare

    Design Transmission of infection is conventionally regarded as either a human behaviour or a medical challenge, yet the environment can also significantly influence this process. This is particularly the case for airborne transmission of infection, where the physical passage of microorganisms in the air depends on the airflow in building design, and their survival depends on environmental conditions.

    This talk considers the engineering and modelling strategies that can be used to understand the mechanisms for airborne infection and to evaluate the effectiveness of design solutions. Examples from research studies demonstrate models of different types of hospital environments and assess the benefits and limitations of different strategies. This includes considering how to conduct quantitative assessment of infection risk to supplement conventional engineering design analysis on physical aspects such as energy and comfort. The talk considers how research findings may be used to support practice, and where further research is needed to understand both fundamental processes and the real performance of engineering solutions.

    Stephanie Taylor MD, M Architecture, CIC, FRSPH(UK), MCABE
    Taylor Healthcare Consulting, Inc.


    New Research Reveals the Power of Indoor Air Management to Improve Human Health

    A perplexing and costly rise in infection and chronic disease challenges us to understand hidden factors at play. Understanding how the indoor environment influences acute and chronic diseases has lagged behind other research. However, with new genetic analysis tools, our understanding of indoor communities of viruses, bacteria, and fungal organisms improves rapidly. We are learning that indoor air management in mechanically ventilated buildings selects the bacteria and viruses that cause disease, while simultaneously weakening the human immune system. While alarming, this also reveals a new, powerful strategy to curtail viral and bacterial epidemics.

    Studying this intersection of buildings, indoor microbes and humans has become an urgent topic for all of us. Hospitalized patients are at serious risk of new infections from antibiotic-resistant bacteria. In addition, seasonal influenza, or even a viral pandemic, affects everyone who resides in buildings.

    This address shows new research on how properly managed indoor air can suppress infectious microbes, support human immunity and enhance productivity and learning.

  • Steering Committee

    Max Sherman (Co-chair)
    Bill Bahnfleth (Co-chair)
    Don Weekes (IEG-GA)
    Peter Wouters (AIVC)
    Dimitris Charalambopoulos (ASHRAE Hellenic Chapter)
    Chandra Sekhar (DAL)
    Bjarne Olesen
    Charlene Bayer
    Marwa Zaatari
    Shelly Miller
    Maria Kapsalaki

  • Scientific Committee
    Arnold Janssens Ghent University  Belgium chair
    Joseph Firrantello Envinity Inc. USA co-chair
    Marc Abadie Université de La Rochelle France  
    Alireza Afshari Aalborg University Denmark  
    Anita Avery Aerodyne Research, Inc. USA  
    William Bahnfleth The Pennsylvania State University USA  
    Constantinos Balaras National Observatory of Athens  Greece  
    Brandon Boor Purdue University USA  
    Wouter Borsboom TNO The Netherlands  
    Hilde Breesch KU Leuven Belgium  
    Samuel Caillou BBRI Belgium  
    Chun Chungyoon Yonsei University Korea  
    Willem de Gids VentGuide The Netherlands  
    François Durier CETIAT France  
    Steven Emmerich NIST USA  
    Laszlo Fulop University of Pécs Hungary  
    Sonia Garcia Ortega IETCC, CSIC Spain  
    Jaap Hogeling EPB Center, REHVA The Netherlands  
    Kevin Houser Oregon State University USA  
    Jae-Weon Jeong Hanyang University Korea  
    Pär Johansson Chalmers University of Technology Sweden  
    Benjamin Jones University of Nottingham UK  
    Theoni Karlessi University of Athens Greece  
    Maria Kolokotroni Brunel University London UK  
    Jelle Laverge Ghent University Belgium  
    Yun Gyu Lee Korea Institute of Construction Technology Korea  
    Yuguo Li The University of Hong Kong China  
    Pilar Linares Alemparte IETCC, CSIC Spain  
    Corinne Mandin CSTB France  
    Richard Mistrick Penn State University USA  
    Lidia Morawska Queensland University of Technology Australia  
    Bjarne Olesen Technical University of Denmark Denmark  
    Lorenzo Pagliano Politecnicao di Milano Italy  
    Andy Persily NIST USA  
    Manfred Plagmann BRANZ New Zealand  
    Dustin Poppendieck NIST USA  
    Carsten Rode Technical University of Denmark Denmark  
    Mat Santamouris University of New South Wales Australia  
    Takao Sawachi Building Research Institute Japan  
    Chandra Sekhar National University of Singapore Singapore  
    Ulla Haverinen-Shaughnessy Tampere University Finland  
    Shinichi Tanabe Waseda University Japan  
    Kari Thunshelle SINTEF Norway  
    Erik Uhde Fraunhofer WKI Germany  
    Iain Walker LBNL USA  
    Paula Wahlgren Chalmers University of Technology Sweden  
    Pawel Wargocki Technical University of Denmark Denmark  
    Donald Weekes InAir Environmental Ltd. Canada  
    Hiroshi Yoshino Tohoku University Japan  
  • Sponsors
    ASHRAE would like to thank these sponsors for supporting IAQ 2020.