The masks must either be surgical or approved by Quebec’s standardization bureau.
The order comes after the Institut national de santé publique du Québec (INSPQ) released recommendations for mandatory masks in workplaces last week.
The INSPQ also recommends workers rotate meal times, favour eating in individual offices when possible or that companies make more rooms available for workers.
Veronique Proulx, CEO of Quebec Manufacturers and Exporters, said the adjustment shouldn't be difficult for many businesses in the sector.
“Quebec manufacturers have been working since the beginning of the pandemic, and masks have been mandatory for the employees working on the shop floor – so there won’t be a big change or those working within the manufacturing plants," she said.