I was using masks in Korea before the pandemic because the air quality would occasionally get bad enough to warrant them. I downloaded an app to monitor the air quality so I’d know when to wear them, because it was regularly giving me a sore throat even when I couldn’t see or smell it.
After coming back to Canada, I thought I’d be done with them after the pandemic. Maybe wear them in crowded places while sick.
Then the wildfires happened on the other side of the country, and the app I forgot to uninstall gave me a warning.
The air quality was at the level where I’d been suggested to wear a mask even indoors with the windows closed.