Overnight desaturation dips can accompany asthma flares or disrupted breathing. Healthy nights sit ~95–99%.
A sustained rise above your baseline can flag a flare, infection, or stress — read it as a trend, not one night.
No rescue-inhaler logs yet. Tap 💨 on Today when you use your reliever — tracking puffs/week against the GINA >2×/week mark is the clearest asthma-control signal.
Clean air today. Change your location in Settings if this isn't where you are. (Pollen data is Europe-only.)