How can I increase my blood oxygen level? Some ways include: Open windows or get outside to breathe fresh air. Something as simple as opening your windows or going for a short walk increases the amount of oxygen that your body brings in, which increases overall blood oxygen level. It also has benefits like improved digestion and more energy.
Does exercise affect oxygen saturation levels? During exercise, carbon dioxide production increases, lactic acid builds up, blood Ph increases; all these shift curve to right. In other words, hemoglobin oxygen saturation becomes lower despite the same partial oxygen pressure during exercise.