When we breathe in, our lungs fill with oxygen, BloodVitals SPO2 which is distributed to our crimson blood cells for transportation all through our bodies. Our bodies want a variety of oxygen to operate, and wholesome people have at the least 95% oxygen saturation all the time. Conditions like asthma or COVID-19 make it harder for bodies to absorb oxygen from the lungs. This leads to oxygen saturation percentages that drop to 90% or below, a sign that medical consideration is needed. In a clinic, docs monitor oxygen saturation using pulse oximeters -- those clips you put over your fingertip or ear. But monitoring oxygen saturation at home a number of instances a day might assist patients control COVID symptoms, for example. In a proof-of-precept study, monitor oxygen saturation University of Washington and University of California San Diego researchers have shown that smartphones are able to detecting blood oxygen saturation ranges down to 70%. This is the lowest worth that pulse oximeters should be capable of measure, as beneficial by the U.S.