(Adina Bresge/ CTV News) — When Linsey Marr boarded a bus in Lake Louise, Alta., earlier this week, she was floored to find out that she had to take off her N95 respirator and put on a medical mask for the ride.
The Virginia Tech engineering professor, who studies viruses in the air, said the policy defies scientific reason, because respirators offer far more protection than a medical mask, both to the wearer and others around them.
“It would be like asking someone to take off their seatbelt, and to use this piece of rope to tie themselves to the seat instead,” Marr said by phone. (…)