Section 16(6) in The Punjab Shops and Commercial Establishments Rules, 1958
(6)In every establishment in which, by reason of the manufacturing process carried on, there is given off any dust or fume or other impurity of such nature and to such an extent as is likely to be injurious or offensive to the persons working therein or any dust in substantial quantities, effective measures shall be taken to prevent its inhalation and accumulation in the premises and if any exhaust appliance is necessary for this purpose, it shall be applied as near as possible to the point of origin of the dust, fume or other impurity, and such point shall be enclosed so far as possible.
