I have a sour smell in one room of the house. No plumbing in there. No obvious source. No part of the room that smells worse than any other. In fact all the “things” smell fine. It’s the air somehow.

Could be radiator issue, but no smell directly from radiator. No particular smell from the fluid. (Same as other rooms.) I’ve heard about hydrogen suffide issues.

Put some wooden furniture in there a while back. They don’t smell, but apparently volatile chemicals are a thing.

Ideas?
#soursmell