Effective home ventilation requires two complementary strategies: dilution of indoor air with outdoor air, and filtration of indoor air; neither alone is sufficient.
causalpending
Speaker
JeffEvidence Quote
“we've got two things we've got dilution of outdoor air and we've got filtration of indoor air”
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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