6.10 

6-10
Ventilation
6.10.1 Crew accommodation spaces shall be adequately ventilated.
6.10.2 Ships regularly engaged on voyages in the tropics and other areas with similar climatic conditions, shall be equipped both with mechanical means of ventilation and with electric fans, provided that only one of these means may be required in spaces where this ensures satisfactory ventilation.
6.10.3 Power for the operation of the aids to ventilation required by subparagraph 6.10.2 shall, when practicable, be available at all times when the crew is living or working on board and conditions so require.