Smoke detectors sensing visible or invisible particles of combustions or alarms are required in all buildings in which a room or area is designated for sleeping purposes either as a primary use or use on a casual basis. Smoke detectors or alarms must be installed in each sleeping room or area, in the immediate vicinity of the sleeping rooms and on each additional story of the dwelling, including basements and attics with habitable space. All detectors or alarms must be approved, must be installed in accordance with the manufacturer’s instructions, must plainly identify the testing agency that inspected or approved the device, and must be operable.