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= Ventilation Calculation =
== Summary == Ventilation is required to replenish oxygen removed by people and sources of combustion, and to dilute odours and pollutants. The most effective method is an integrated HVAC system with air distribution and local controls in each cabin. But without pass-throughs for air ducts an integrated ventilation/humidification system is impossible. A water system for distribution minimises the scope of pass-throughs in water-tight bulkheads but like many design decisions it forces trade-offs and the use of local ventilation.
== Method ==