Environmental Health Services 655 12 th Ave W Vancouver BC V5Z 4R4 Tel 604.707.2443 Fax 607.707.2441 www.bccdc.ca Evidence Review: Using masks to protect public health during wildfire smoke events March 31, 2014 Author: Hind Sbihi Expert reviewers: Rita Ciconte Mark Nicas Editors: Catherine Elliott Karen Rideout