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Frequently Asked Questions


What is SpO2?

SpO2 stands for peripheral capillary oxygen saturation,an estimate of the amount of oxygen in the blood. For a regular healthy person, the normal blood oxygensaturation level (SpO2) should be above 93%.

What makes SpO2 drops?

For snorers, sleep apnea makes oxygen shortage, so SpO2 drops frequently. Some other health problem such as lung disease can also do so. Usually, if the level goes down over 4% from baseline, it is regarded as a drop. Frequent drops should have your attention.

What is O2 Score?

O2 Score is a measure of oxygen shortage during whole sleep. It combines frequency, duration,and depth of oxygen drops. A higher score means oxygen is richer.

What does the color of O2 Score stand for?

Greener, richer is oxygen; redder, shorter is oxygen.

How to adjust vibration?

On device page, you can switch on/off vibration, adjust threshold or strength. If the vibration has little help to overcome shortage of oxygen,you can increase threshold or strength. If it disturbs your sleep too much, you can decrease threshold or strength.

What does the '▲' mean?


What is ODI in O2 Insight?

The number of times of oxygen drop over 4% per hour.

Drops over 4%?

Times for oxygen levels drop > 4% in a complete measurement session.