Ventilation Requirements and Infiltration
ASHRAE Technical Committee 4.3


Upcoming TC Meetings

Tip: Copy and Paste Your Upcoming Meeting Information in this area.

ASHRAE Winter Conference 

Hybrid: In Person and Virtual

Meeting Title
Date and Time
Main Committee Meeting

5:00-7:00 pm ET

Sheraton, Maple West (M)
Toronto, ON

and Virtual Option (below)

Event Link (with Webex):

Direct Link: 


Virtual Meeting Etiquette and Tips:

     - Download Webex prior to the meeting for a smoother meeting start.

     - The meeting, and downloading Webex early, can be accessed through the "Enter Meeting" link on the event page, or the direct Webex link above.

  • - When joining the meeting, edit your display name to clearly identify yourself by hovering over it and clicking Rename.
  • - Save some internet bandwidth and keep your webcam off by default unless you are actively presenting.

Committee Chair

Ms Meghan Kara McNulty

Committee Scope

TC 4.3 is concerned with ventilation requirements and the analysis of infiltration, airflow around buildings, exhaust, and the re-entry of exhaust, including their integration interactions with indoor air quality and energy calculations for buildings and HVAC system design and operation performance and energy consumption.


Upcoming Society Conferences

ASHRAE Annual Conference
June 25-June 29, 2022

Additional Information

Want to become involved in ventilation, infiltration, and indoor air quality (IAQ) issues at the Society level?
Please read through this web site and attend the physical-reality general and subcommittee meetings of TC 4.3 at the ASHRAE Annual and Winter Meetings!