Abstract
We evaluated humidity-aware correction for indoor exposure estimation under 23% humidity drift. A deterministic paired simulation generated 72 cases and preserved a upper-severity quartile. Mean inverse concentration error changed from 0.575 to 0.631; the paired difference was +0.056 (95% interval +0.053 to +0.058). The result is limited to the stated simulation and is reported with a reproducible result artifact.
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