Hong Kong Regulations

FACTORIES AND INDUSTRIAL UNDERTAKINGS (ELECTROLYTIC CHROMIUM PROCESS) REGULATIONS - REGULATION 5

Mechanical exhaust

At every bath in which an electrolytic chromium process is carried on, an
efficient exhaust draught shall be provided by mechanical means and shall
operate on the vapour or spray given off as near as may be at the point of
origin, so as to prevent it from entering into any other place in which any
person works.