Machinery spaces shall be adequately ventilated so as to
ensure that when machinery therein is operating at full power in all
weather conditions, including heavy weather, an adequate supply of
air is maintained to the spaces for the safety and comfort of personnel
and the operation of the machinery. Auxiliary machinery spaces shall
be adequately ventilated appropriate for the purpose of those spaces.
The ventilation arrangements shall be adequate to ensure that the
safe operation of the craft is not put at risk.