You must ensure that your emergency shelter is ventilated for the health and comfort of the clients residing in shelter by meeting the following requirements:

(1) A mechanical exhaust to the outside must ventilate toilets and bathrooms that do not have windows opening to the outside;

(2) In order to prevent objectionable odors and condensation, all bathrooms, toilet rooms, laundry rooms, and other enclosed space containing wet mops and brushes, must have natural or mechanical ventilation;

(3) Bedrooms and communal living areas must have a window or opening to the outdoors that can be locked or secured from the inside; and

(4) Gas or oil fired water heaters and forced air systems must be safely vented to the outside.