Air Exchanges Per Hour

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  • For office space, 2-8 air exchanges per hour are required. [1]
  • Air Exchange Per Hour Calculator sez 5 air exchanges per hour for a 12x12 room with 100 cfm.
  • 0.4 per hour is recommended per person for ventilation - [2]
  • Furnace forced air should be 150 cfm per 10k btu [3]