WINNIPEG -- Manitoba opposition wants to see the province beef up ventilation in schools before children return to the classroom in September. On Thursday, NDP Leader Wab Kinew called on the province to proactively increase ventilation in classrooms. "Investing in ventilation will help ensure that kids who are too young to be vaccinated right now can still have an additional measure of protection and help ensure that they can all return to what educational experts say is the best approach to learning which is direct face-to-face in-person learning," Kinew said. The province plans to have all Kindergarten to Grade 12 students return to in-class learning full-time on Sept. 7.