Outdoor air dilution and indoor air filtration are additive strategies: you can achieve a target air cleaning rate through a combination of lower outdoor air intake and higher filtration, rather than maximizing one or the other alone.
causalpending
Speaker
HostEvidence Quote
“we can add the ventilation the outdoor dilution air and the filtration like we can there we can separate them and then add them together”
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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