S-2.1, r. 13 - Regulation respecting occupational health and safety

Full text
119. Relative humidity: In any closed rooms, a suitable relative humidity percentage shall be maintained according to the type of work performed therein and the outdoor climatic conditions.
A relative humidity percentage of at least 20% shall be maintained during business hours in any office building or commercial establishment built or operated after 19 December 1979.
O.C. 885-2001, s. 119.