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Any opening into the shop above must be so covered
as to prevent the entrance of dust.
B.—Light.
7.—The underground bakehouse shall be adequately
lighted with daylight throughout, to the satisfaction of the
Sanitary Authority, and the lighting maintained shall be such
that an Official Copy of the Abstract of the Factory Act may
ordinarily be read in all parts of such bakehouse, between
the hours of 11 a.m. and 3 p.m.
C.—Ventilation.
8—Ventilation shall be so arranged that the circulation
of air is confined to the underground bakehouse.
9.—Ventilation shall be adequate, that is to say, fresh
clean air shall be supplied constantly during working hours,
so as to provide not less than 3,000 cubic feet of air, per
hour, for each person employed, with any additional amount
required for purposes of combustion, in such a manner as
to avoid the occurence of draught, and so that the air is
sufficienty renewed in all parts of the underground bakehouse;
and, by the aid of mechanical power, where, in the
opinion of the Medical Officer of Health, such is necessary.
Provision shall be made for the removal of steam from
the underground bakehouse.
Where mechanical power is used, the fresh air shall be
taken from a height above the level of the adjoining ground
of not less than 6 feet, and be distributed to different parts
of the underground bakehouse in such a manner as to
change the air of such bakehouse in all parts.
[Note.—This will generally require the provision
of a fan. Foul air may also be extracted by means of
a fan with any aid available from gas and ventilating
shafts.]
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