7. When smoke is used, the studio must be periodically
ventilated, both horizontally and vertically, by
mechanical means. Depending on the concentration
of the smoke, the producer must ensure that the
members of the production crew leave the studio at
regular intervals. When smoke is produced indoors in
a location other than a studio, the producer or his
representative must ensure that the location is well
ventilated and that the smoke is exhausted.
8. The producer must take the necessary precautions to
prevent the members of the production crew from
inhaling smoke. He must provide the appropriate
approved respiratory equipment and ensure that it is
used (the type of smoke determines the type of respi-
ratory equipment to be used).
9. Any person not playing an essential role in the filming
or recording must remain off the set. If possible, the
dressing rooms, locker rooms, and other areas
equipped with the same ventilation system as the set
should be cleared.
10. Propylene glycol and glycerin are the only substances
to be used to produce special effects of fog or smoke.
11. Also permitted, but only in small quantities and for
short periods, are:
• cryogenic gases (solid carbon dioxide or dry ice,
and liquid nitrogen);
• butylene glycol;
• polyethylene glycol;
• triethylene glycol.
This also applies to the propane used to fuel a rig
(flame bar), used to simulate a fire. These substances
may cause irritation.
Warning: Glycols and glycerin products must not
be heated beyond the temperature needed to
vaporize the liquids. At high temperature, there is
a risk of auto-ignition. For example, if triethylene
glycol is heated to a temperature close to 370ºC
(700ºF) or higher, there is a risk of explosion.
Safety Rules for the Québec Film and Video
Written by the Technical Committee of the film and video industry’s joint
sector-based working group and produced by the Commission de la santé
et de la sécurité du travail du Québec.
DC400-1364-12A.pdfLa version française de ce