(a) In every factory, mill, workshop, mercantile establishment, laundry, or other establishment, adequate measures shall be taken for securing and maintaining a reasonable, and as far as possible, an equable temperature consistent with the reasonable requirements of the manufacturing process.
(b) No unnecessary humidity which would jeopardize the health of employees shall be permitted.
(c) In every room, apartment, or building used as a factory, mill, workshop, mercantile establishment, laundry, or other place of employment, sufficient air space shall be provided for every employee which in the judgment of the Director of the Division of Labor or of his or her deputies and inspectors is sufficient for the employees' health and welfare.