law: Beedi and Cigar Workers (Conditions of Employment) Act, 1966
  
  9.Ventilation.-
  (1) For the purpose of preventing injury to
  
  the health of the persons working therein, every industry premises shall
  
  maintain such standards of lighting, ventilation and temperature, as may be
  
  prescribed.
  (2) Wherever dust or fume or other impurity of
  
  such a nature and to such an extent as is likely to be injurious or offensive
  
  to the persons employed in any industrial premises is given off by reason of
  
  the manufacturing process carried on in such premises, the competent authority
  
  may require the employer to take such effective measures as may prevent the
  
  inhalation of such dust, fume or other impurity and accumulation thereof in any
  
  work room.