Smell the pathway
Smell Atlas
Follow the pathway, not only the label.
Onset, duration, airflow and nearby systems often separate moisture, drainage, combustion and electrical sources.
Describe your clue →HVAC reservoir or pressure transport01
Musty odor when HVAC starts
The first minutes of airflow reveal where odor is stored or drawn from.
- Trigger
- fan startup
- Strongest location
- duct, coil, pan or connected space
Sensory method
Describe first. Interpret second.
- TriggerWhat changed immediately before it began?
- CycleDoes it follow startup, flow, heating, wind or room use?
- LocationWhere is it strongest, and does that move?
- Stop conditionHeat, smoke, gas or electrical odor changes the response immediately.
