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15 bytes removed, 21:13, 4 October 2015
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→‎Ventilation
Ventilation rates can be expressed in several ways:
<pre>Cubic feet per minute (CFM) or litres per second (L/s) of outside air brought into the boat CFM per person: CFM/p CFM per unit floor area: CFM/ft2 Air changes per hour : (ACH)</pre>
Standards for ventilation differ, and have varied over time subject to lobbying, energy efficiency doctrines and the emergence of sick building syndrome. A reasonable yardstick is somewhere in the range of 0.5-1.25 ACH or, more precisely, 1.0 ACH translating to around 1.66 CFM per 100 cubic feet of cabin volume. You can double check this to ensure at least 15 CFM/p.