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SpO2 Monitoring

The Science

Camera-Based Pulse Oximetry

Oxygenated and deoxygenated blood absorb different wavelengths of light differently. Our multi-spectral analysis of the rPPG signal estimates the ratio of oxyhemoglobin to deoxyhemoglobin to calculate SpO2.

rPPG
Technology
30s
Scan Time
90-100%
Optimal Range

Normal SpO2 Levels

95-100%Normal range for healthy adults
90-94%May indicate mild hypoxemia
<90%Consult healthcare provider

When Contactless SpO2 Helps

Telehealth Screening

Quick oxygen check during virtual consultations when patient lacks a pulse oximeter.

Daily Wellness Checks

Convenient daily monitoring for those wanting to track respiratory health trends.

COPD Monitoring

Supplement traditional oximetry with frequent contactless checks between readings.

Fitness Recovery

Monitor oxygen levels during high-altitude training or intense workout recovery.

SpO2 Monitoring FAQ

Common questions about contactless oxygen saturation

How does contactless SpO2 measurement work?

Oxygen-rich hemoglobin and oxygen-poor hemoglobin absorb light differently. Our technology uses multi-wavelength analysis of the rPPG signal to estimate the ratio of oxygenated to deoxygenated hemoglobin, similar to how a pulse oximeter works but without contact.

How does contactless SpO2 estimation work?

Our technology uses multi-wavelength analysis of the rPPG signal to estimate the ratio of oxygenated to deoxygenated hemoglobin, similar in principle to how a pulse oximeter works but without contact.

Can this replace a pulse oximeter?

Contactless SpO2 enables continuous monitoring without hardware — ideal for telehealth screening, daily health checks, and population health programs where deploying physical devices isn't practical.

What affects SpO2 measurement quality?

Factors include lighting conditions (natural light helps), skin tone, and motion. Cold extremities don't affect our face-based measurement like they do finger pulse oximeters.

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See how contactless vitals can transform your healthcare delivery.