Don’t put away those N-95 masks yet; face covering protects against smoke particulates as well as COVIDBy Brian Bull (KLCC)Sept. 26, 2022 11:27 p.m.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up