(a) Only the front or customer side of a dry cleaning machine may be exposed in the customer area. The working or maintenance portion of the equipment shall be separated from the customer area by a solid partition.
(b) There shall be a continuous flow of air from the customer area through the partition as a means of minimizing any solvent build up in the customer area and of controlling any minor solvent leakage.
(c) Minimum ventilation requirements are as follows:
Minimum Flow Rate Per Machine
Number of Machines (CFM)
Number of Machines (CFM)
1 - 3 500
4 - 8 400
9 - 16 375
17 or more 360
(d) Ventilation rates per machine apply to drum loads of eight to ten pounds. Where the machines are set up to handle cleaning loads of more than ten pounds per drum, the ventilation requirements shall be proportionately increased based on the weight of clothing handled. The exhaust ventilation described in subsection (c) hereof shall be provided on a continuous basis while the store is open for business. The fan wiring should be such that the dry cleaning equipment cannot be operated unless the fan system is in operation. Where interlocked wiring is used, some means should be provided for operating the fan equipment which would otherwise be turned off because of dry cleaning equipment breakdown.
(1974 Code § 7.234)