Strafford, on the south slope of Blue Job mountain.

Recently noticed a faint acrid smell(like Chlorine-ish), and sinuses have been acting up the last 2-3 days. Hard to differentiate from when the upwind neighbor is using their pellet stove, and some of the smoke wafts into my house - except it's been warm-ish lately, and the neighbor only seems to use their stove "hard" when it's really cold.

Whatever it is, post-nasal drip and general sinus/allergic irritation is new.