ASHRAE 62.2 is a ventilation standard that many people cite, but there is general uncertainty about what it actually specifies and whether it is well understood even by those who wrote it.
factualpending
Speaker
HostEvidence Quote
“that's like a number that maybe means something and maybe doesn't everybody kind of agrees even people who write it”
Source
Home Ventilation Advice from HVAC Researcher Jeffrey Siegel: How Many CFM is Ideal?— Home PerformanceCreated: 8/13/2026, 4:55:15 AM
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