The following is an article found on the website — Self Help Nirvana — outlining the various ways to test blood oxygen levels, what they mean and how to get more oxygen into your blood stream.  

The Bohr Effect — The Secret to Increasing More OXYGEN in Your Cells 

April 23, 2023 – The Bohr effect is our body's clever mechanism for ensuring oxygen gets offloaded precisely where it's needed most. It’s based on this simple yet vital principle: when CO2 levels rise, hemoglobin changes shape slightly, which lets go of its bound oxygen.  Increasing oxygen in your cells could potentially help with various conditions, from anxiety to respiratory problems.  Learn how to do it!

Poor breathing can decrease oxygen levels and even change your body's pH. Learn a simple breathing technique that can increase blood oxygen levels.   Watch this demonstration now!

Note, that low oxygen levels is related to metabolic disease and onset diabetes, chronic illness and cancer.