Monitoring
How to Monitor Oxygen Levels at Home
15 March 2026 · 4 min read
A simple routine for accurate SpO2 readings, and the numbers that should prompt a call to your doctor.
Rest for five minutes, warm your hands, remove nail polish, and keep your hand still at chest level. Take the reading after the display stabilises for about ten seconds.
Healthy adults usually read between 95% and 100%. Readings that stay below 94%, or drop sharply from your normal baseline, deserve medical advice.
Log the reading with the time of day and any symptoms. Patterns matter far more than a single low number.
Need help picking the right device?