Ventilation Requirements and Infiltration
ASHRAE Technical Committee 4.3

Upcoming TC Meetings

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Summer Interim Meeting 


Meeting Title
Date and Time
Researach Subcomittee

(Separate meeting this conference!)

Monday, February 6, 2023

4-5pm EST

Omni Hickory (M3-North and virtual)

Virtual Info:

Winter Conference 2023: Full Comittee
Monday, February 6, 2023

5-7 pm EST

Omni Chestnut (M3-North and Virtual hybrid)

Virtual Info:



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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 2023 Winter Conference
Feb 4-8, 2023

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!