22/03/2026
SpO₂ is useful — but it’s often misunderstood.
We put together 7 common myths about SpO₂ (and the truths you actually need), including:
✅ why trends matter more than a single reading
✅ why context (sleep vs. day, activity, stress) matters
✅ why measurement conditions can affect confidence
✅ why chasing the “highest number” misses the point
The best use of SpO₂ is simple: look for patterns over time and pair them with context.
(For wellness monitoring, not diagnosis.)