An O2 Score represents a comprehensive evaluation of your oxygen condition. It is derived from the analysis of various factors such as events, frequencies, depth, and duration of your oxygen levels throughout the night. The score falls within a range of 0 to 10, where 10 indicates the most favorable condition. This score is available for each recorded session within the App. The scoring categories are as follows: 1-4: Critical 5-6: Low 7-8: Good 9-10: Excellent Importantly, the O2 Score is calculated from the moment the device is worn until it is removed, encompassing the entire duration of usage.