The Lost Art of Hospital Ventilation

exposure ; they opened into wide-windowed corridors which, in turn, communicated with open stairways serving as ventilating flues. In the wards themselves the space allowance per bed was fully 1,800 cubic feet, or, approximately, 50 per cent, above the prevailing standard. All of the conditions favoured abundant natural ventilation. Twenty years have passed, and the costly mechanical ventilating equipment of these wards has never once been operated!