24. Precaution against dust, noxious gas, fumes and other impurities. - Employer of every factory shall ensure that:-
(i) wherever exhaust systems for removal of flammable fumes, gases, mists, vapors or residues are required to be installed, they are not to be connected to any other ventilating system or discharged into a chimney or flue used for conveying gases of combustion;
(ii) when fumes, gases, mists, vapors, dust and other refuse discharged from exhaust systems is likely to have adverse effect on the health or noxious for the employees or the neighborhood, the exhaustion shall be effected through a system that neutralizes toxic substances, sterilize infectious substances and deodorize fumes, gases, mists or vapors;
(iii) no employee is required or allowed to enter any workplace or confined space until practicable measures have been taken to bring the levels of noxious gas, fume, vapour or dust, which may be present, within the permissible limits.