Masks don't protect the person wearing them, rather they protect others. Given that VIA staff interact with dozens of passengers daily, many staff members could have the disease and be asymptomatic. Requiring VIA staff to wear masks would help to mitigate this possibility.
Nope sorry that's not true, unless it's a N-95 mask, those cheap dust masks don't do squat. They are made for dust, not for germs. It even says on the package. You sneeze or cough it will go through the mask. I work in construction i only use them for dust, if i'm around chemicals or aerosols or mould, i will wear a respirator.