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  • 14 Feb 2023
  • 11:30 AM - 1:00 PM
  • 180 Technology Pkwy NW, Peachtree Corners, GA 30092




An Evaluation of Filtration and Air Cleaning Equipment Performance in Existing Installations with Regard to Acceptable IAQ Attainment

Tuesday, February 14th, 11:30 AM - 1:00 PM

We are excited to welcome the chapter membership to ASHRAE Society HQ
for in-person monthly meetings! 

Please follow the guidelines below:

  • If you are sick or suspect you might be sick, do not come to the meeting.
  • Masks are not required, but are welcomed.
  • Practice good hand and respiratory hygiene, like washing hands frequently and covering coughs and sneezes.

Technical Program Description

A number of trends are stimulating interest in the usage of filtration and air cleaning as an adjunct to the environmental conditioning of buildings. These include escalation of energy costs, heightened awareness about acceptable IAQ, aging of the commercial building inventory, numerous revisions and addenda to ventilation standards and building codes, and green building/sustainability initiatives and energy tax credits. A field study was performed on established installations of particulate and gas-phase filtration and included a variety of building types and usage and evaluated environmental conditions and airborne contaminants. The study was undertaken in two parts with Phase I being to establish and finalize test and measurement protocols and a Phase II field investigation. This presentation provides a summary of both Phases, including characteristics of untreated outdoor air, and air cleaning with particulate filters and gas-phase air filtration. The field study demonstrated that filtered air can meet or exceed the IAQ level from simple dilution with outdoor air. The study also documents the comparable energy savings as a result of a reduction in outdoor air ventilation rates and significant control of specific contaminants of concern regarding occupant safety and building security.


Chris Muller

Director - IEQ Technical Services at AAF Flanders

Recognized as a world-wide authority on the topics of indoor/environmental air quality, the application and use of gas-phase air filtration, filtration and enhanced air cleaning, corrosion control and monitoring, and electronic equipment reliability. Mr. Muller has written and spoken extensively on these and related topics, with more than 175 articles and peer-reviewed papers, more than 100 seminars, and 8 handbooks. He has testified before the U.S. Occupational Safety and Health Administration (OSHA) on a proposed Indoor Air Quality (IAQ) Standard, consulted on the preparation of Dutch and Italian governmental standards for indoor environments, and worked closely with many state and national agencies in the U.S. and abroad to develop and implement indoor environmental control strategies for airborne contaminants.

Mr. Muller has received ASHRAE’s Distinguished Service Award and co-authored ASHRAE’s Position Document on Filtration and Air Cleaning, ASHRAE IAQ Guideline, and ASHRAE Guideline 42P: Indoor Air Quality in Commercial and Institutional Buildings. His ASHRAE committee activities include:

  • Standing Standard Project Committee 62.1 – Ventilation for Acceptable Indoor Air Quality, the Research and Education subcommittee, and co-authored the ASHRAE Standard 62.1 User’s Manual.
  • Standing Standard Project Committee 145 – Test Methods for Assessing Performance of Gas Phase Air Cleaning Equipment (published first industry standards for assessing the performance of gas phase air filtration systems media and equipment).
  • Technical Committees 2.3 – Gaseous Air Contaminants and Gas Contaminant Removal Equipment
  • Technical Committee 9.9 – Mission Critical Facilities, Technology Spaces and Electronic Equipment
  • Technical committee 9.11 – Clean Spaces
  • Technical Resource Group TRG4.IAQ – Indoor Air Quality Procedure Development

Other activities include:

  • Current Chair of the International Society of Automation 71 committee on Environmental Other
  • Senior Member and Faculty of the IEST Contamination Control Institute.
  • International Standards Organization – U.S. Expert to Technical Committees 142 and 156
  • American Society for Testing and Materials – Committees on Indoor Air and Activated Carbon.
  • Air & Waste Management Association – Indoor Air Quality Committee
  • International Society of Indoor Air Quality and Climate – Task Force on Indoor Air Quality in Museums

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