32. The permit holder must ensure that the play area(1) have a window that remains unobstructed at all times through which the children may be viewed;
(2) have, on the average, at least half of its floor/ceiling height above ground level, or have windows referred to in paragraph 6 that are entirely above ground level and whose bases are not more than 1.2 m from the floor;
(3) have a minimum floor/ceiling clearance of 2.30 m over at least 75% of its net area and a minimum floor/ceiling clearance of at least 2.10 m at any given point in that area;
(4) have walls covered with smooth, washable materials;
(5) have floors covered with a washable material other than carpeting and that are not concrete, ceramic, terrazzo or other similar material;
(6) have windows opening directly to the outside with a glass area that is never less than 10% of the floor area of a room. A windowless room is considered to be part of an adjoining room with windows provided that 60% of the common wall is entirely open; if any part of one of those rooms is more than 6 m from a source of natural light, the minimum glass area lighting the room must be equal to at least 15% of the total floor area;
(7) be equipped with an artificial lighting system providing a minimum light level of 320 lux measured 1 m above the floor; and
(8) be maintained at a relative humidity of at least 30% in the winter.