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by walterbell 1292 days ago
> Any advice on how to debug what is causing it

Like bisecting code, you can bisect airflow with plastic (e.g. 6 mil polyethylene) sheeting. Move the VOC sensor between isolated zones, or use multiple VOC sensor logs to track dispersal time/direction, narrowing down potential sources.

> it seems to be worse if we have the aircon on

Central or window aircon? You could place a VOC sensor near the HVAC duct input.