House Ventillation Requirement

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  • 0.35-1 air exchanges per hour for air quality in a home [1]
  • For one bedroom of the Seed Eco-Home 2, we have nominally 170 sf or 1360 cf.
  • 100 CFM gets us 1360 cf in about 14 minutes, or about 4 air exchanges per hour.
  • Thus, 100 cfm is more than adequate.