Forest fire smoke protection while exercising?

[kj]

I'm in Boise. Today is better, but a 20 mile mountain bike, or even a 4 mile trail run would still wreck my lungs. Yesterday the Purple Airs were between 150 and 190. At that point I can't do anything outside without really feeling it. I know that's not normal, but it is what it is.

I can't do inside exercise. That's a legit suggestion, but I just can't get myself to do it regularly, which is my fault, I admit.

I'm afraid you're right Fromish. I guess compromise is necessary. Thanks.