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Summary of the pulse oximeter failure during the cold exposure and the recovery period in 15 volunteers
| No. of volunteers with SpO < 90% | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensor | Cold exposure (min) | Recovery (min) | |||||||||
| 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | ||
| Finger | 4 | 2 | 3 | 4 | 5 | 4 | 3 | 3 | 2 | 2 | |
| Ear canal | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | |
