(225 ILCS 705/31.08) (from Ch. 96 1/2, par. 3108)
    Sec. 31.08. Doors, curtains or brattices shall be placed at such places as may be designated by the mine manager, subject to the approval of the State Mine Inspector, to conduct into the working places an amount of air sufficient to render the working places reasonably free from deleterious air of every kind.
(Source: Laws 1953, p. 701.)