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A pulse oximeter device on a finger that reads 99% Sp02 and 78 beats per minute.
A modern pulse oximeter. (Photo: Wikimedia Commons/Silar)

Black people are three times as likely as white people to have undetected low oxygen levels due to racist technology.

2021

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A modern pulse oximeter. (Photo: Wikimedia Commons/Silar)

Pulse oximeters, as they are currently manufactured, do not work well on people with darker skin. Known to be a problem since their early creation, the U.S. Federal Drug Administration (FDA) finally issues a warning that pulse oximeters may not provide accurate results for people with darker skin tones in 2021.