Each automatic dry-cleaning machine shall be completely enclosed by a cabinet. The cabinet shall be provided with vents (in the case of attendant-operated machines, the vent in the complete machine unit as provided by the manufacturer shall be connected as above) at or near its bottom, and connected to exhaust ventilation adequate to prevent the escape of vapor to the surrounding atmosphere. As an alternate to this condition, the machines may be provided with a front panel which can be sealed to the floor and to the surrounding panel wall between the customer and maintenance areas, and which will provide construction as required in § 112.18.
('69 Code, § 5-12)