Oxygen saturation is the level of oxygen present in the blood. I had mine checked today and it's 99%.
If vaping had a negative effect on lung function, as some critics have said, it would most definitely not be 99%, as I've been vaping for over 3 years already.
If vaping had a negative effect on lung function, as some critics have said, it would most definitely not be 99%, as I've been vaping for over 3 years already.