Current Toronto weather status: I thought that all I had to worry about for tomorrow's potential bike club ride was the temperature (high of 30C, 35C humidex), but now there's wildfire smoke too.

I briefly considered and then rejected doing the ride in an N95. I can ride with one, but it's extremely impractical to drink water with it on, and not drinking water on a 30C high day would be far worse than the smoke. (I already have enough problems with drinking enough on rides without a mask.)