Section 13. No part of any room, in any building of the grades referred to in this act, shall be enclosed or subdivided, in whole or in part, by a fixed or movable partition, or other contrivance or device, unless such part of the room, so enclosed or subdivided, shall contain a separate window as herein required for ordinary rooms, and shall have a floor area of not less than seventy square feet: Provided, That rooms used solely for kitchens, kitchenettes, bath rooms, laundries, water closet compartments, shall be exempt from the provisions of this section with reference to floor area: Provided further, That all kitchens, kitchenettes, bath rooms, laundries, and water closet compartments shall be equipped for the purpose for which the room is planned.
(13 amended May 16, 1921, P.L.617, No.267)