Portable HEPA filtration units can be added to a home ventilation strategy to provide localized high air cleaning rates in occupied rooms without requiring expensive central system upgrades.
causalpending
Speaker
JeffEvidence Quote
“we can add in portable filtration too so if you have everyone's in the living room then you can have a lower number with your central system and have a portable or a room-based system in the space where people are”
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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