QUEBEC CITY -- Quebec Premier Francois Legault fired back at opposition parties Thursday, saying they “don’t respect public health,” following criticisms on air purification in schools. During a Thursday morning press conference, Legault was asked if parents and teachers should trust the judgment of Education Minister Francois Roberge after opposition leader Dominique Anglade recently called for his resignation over air quality testing in schools. “Absolutely,” responded the premier. “There seems to be an obsession with installing air purifiers in every class... Public health has been clear from the start; air purifiers are not necessary." According to Legault, public health authorities believe that "opening a window will do the job," he said.