Normal oxygen saturation levels typically range between 95% and 100% in healthy individuals. Values below 90% may indicate hypoxemia, which means there is a lower than normal level of oxygen in the blood. Generally, an oxygen saturation level of 90% and above is considered safe for most people, especially in non-emergency situations. Additionally, individuals living at high altitudes might experience slightly lower baseline oxygen saturation due to decreased oxygen pressure in the air. However, it's not uncommon for certain individuals, particularly those with COPD, to exhibit slightly lower oxygen saturation levels. Their baseline oxygen saturation usually ranges from 88% to 92%, but this range is generally acceptable for most individuals at rest. It's important to note that the LOOKEE Device is non-invasive and boasts a high accuracy of +2/-2, which is remarkable for an oximeter. With this high accuracy, a reading of 88% can be considered within the range of 86% to 90%. It can be confidently stated that the threshold for safe oxygen saturation is around 88%. Readings above this level are safe, while readings below indicate hypoxemia. However, when oxygen saturation drops to 80%, the situation becomes critical. At this point, the lungs may no longer effectively support themselves, causing the heart to beat faster in an attempt to meet oxygen demands. Prolonged exposure to such conditions can lead to cardiovascular complications and increased morbidity over time.