The problem is that it's not "a few days." It varies from "Several weeks of absolutely toxic outside air" to "several months." Typical campfire exposure is "A

The problem is that it's not "a few days." It varies from "Several weeks of absolutely toxic outside air" to "several months." Typical campfire exposure is "A few hours, and if you're not downwind of it constantly, not inhaling that much smoke off it." Jokes about how 360 degrees of campfire are "downwind" ignored... But a good hot campfire shouldn't be smoking that much, either.