Blood oxygen saturation measurements are recorded over 800 million times in the US on a wide range of patients. But studies show that pulse oximeters are 3 times less accurate in black patients than in white ones; pulse oximeters missed hypoxemia (when Sp 02 levels are less than 88%) at a rate of 11.7% in Black patients versus 3.6% in white patients. This highlights the need for a way to reduce pulse oximeter inaccuracies so a simple, minimally invasive, and accurate method to measure O2 levels is available for patients with darker skin tones. The EquinOx pulse oximeter plan includes a skin tone sensor and correction algorithm that allows the user to get a more accurate reading, regardless of skin tone.