According to The Food and Drug Administration in 2021 issued a warning about possible inaccuracies after a study found the devices tended to overestimate Black patients’ oxygen levels. Now I have used these devices when I had COVID-19 this year and a relative suggested that I purchase one because it would help in monitoring my oxygen levels. The clip-on devices use light to measure oxygen levels in the blood are getting a closer look from U.S. regulators after recent studies suggest they don’t work as well for patients of color.
This device as stated on TheGRIO many know of as or called pulse oximeters, usually snap onto a finger and are widely used in hospitals across the globe to help guide treatment. At-home versions became popular during the COVID-19 pandemic.
Seems studies have shown that the pigmentation in people’s skin can throw off the readings.