34 Pa. Code § 35.81 - General requirements
(a)
Booths. Booths shall be equipped with exhaust systems which
will normally protect the operators from deposits or inhalation of the material
discharged from the spray gun.
(b)
Room booths. When objects are sprayed in room booths the
exhaust system shall be kept in operation constantly while spraying is being
carried on, and shall effect not less than 20 changes of air per hour. To
maintain adequate ventilation, cross currents of air shall be avoided. While
spraying is being carried on, currents of air shall not be permitted from
windows or from other sources that will interfere with the required velocity of
the exhaust system.
Notes
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