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IEA-EBC Annex 78 bring researchers and industry together to investigate the possible energy benefits and increased indoor air quality by using gas phase air cleaners to partial substitute for ventilation (outdoor air). None of existing standards for testing gaseous air cleaners include human bio effluents as a source and the perceived indoor air quality is not used to evaluate the performance. Bio effluents from occupants are an important source of pollution and most criteria for ventilation is based on perceived air quality. There is therefore a need to establish new and more relevant test methods for gaseous air cleaners.

1. Concept for Substituting Ventilation By Gas Phase Air Cleaning: Pros & Cons
   Bjarne W. Olesen, Ph.D., Fellow ASHRAE, Intl. Center for Indoor Environment and Energy, Technical University of Denmark, Lyngby, Denmark
2. Gas Phase Air Cleaning Technologies, Needs and Challenges
   Pawel Wargocki, Ph.D., Associate Member, Technical University of Denmark, Kongens Lyngby, Denmark
3. International Standards for Testing Gas Phase Air Cleaners
   Paolo Tronville, Ph.D., Fellow ASHRAE, Politecnico di Torino, Torino, Italy
4. Modelling and Long Term Performance of Gas Phase Air Cleaning Technologies
   Jianshun Zhang, Ph.D., Fellow ASHRAE, Syracuse University, Syracuse, NY
5. International Standards for Testing of Perceived Air Quality
   Ito Kazuhide, Ph.D., Member, Faculty of Engineering Sciences, Kyushu University, Kyushu, Japan