what should pulse ox be

A pulse oximeter measures the amount of oxygen in someones blood and is a noninvasive, pain-free way of measuring the oxygen in a persons blood. An ideal oxygen level is between 96% and 99% . A normal level of oxygen is usually 95% or higher. However, some people with chronic lung disease or sleep apnea can have normal levels around 90% . If your home SpO2 reading is lower than 95%, call your healthcare provider. If you have an existing lung condition, please check with your doctor about what your readings should be.