Care can only be provided on floors with two means of egress. When care is provided on the first floor, and the second floor is without a second means of egress, the second floor may only be used for bathroom purposes provided that there is a window on the second floor that has the minimum net clear opening height dimension of at least 24 inches and a minimum net clear opening width dimension of at least 24 inches, and an adequate size through which all children and adults can be evacuated or a window that complies with the Fire and Building Code of New York State, or other applicable code if the Fire and Building Code of New York State is not applicable in that jurisdiction, as a means of egress.