| Category | Breathing through the lungs | Drinking high-concentration oxygen water | |
|---|---|---|---|
| Supply Path Amount of Oxygen Absorbed by the Liver |
Breathing → Lungs → Heart → Each Cell Tissue 4.8% | VS | Drinking → Oral Mucosa and Stomach → Portal Vein → Each Cell Tissue 43% |
| Oxygen Saturation in the Blood (in the condition where oxygen pressure lowers to 90% or less after exercise) | Takes over 2 hours to reach 96.7% | Reaches 96.7% immediately upon drinking | |
| White Blood Cell Count and Hemoglobin Oxygen Saturation (Disease Prevention) | No change | Significant increase |
| Category | Inside a Car (Enclosed Space) | Jjimjilbang (Korean Sauna, Enclosed Space) | Subway during rush hour | Apartment, House, Office | Urban Outdoor | Nearby urban forest |
|---|---|---|---|---|---|---|
| Oxygen Concentration | 18% | 18.5% | 19.4% | 18~20% | 20.5% | 21.2% |
| Sensation | Very stuffy, difficulty breathing | Very stuffy, difficulty breathing | Stuffy | Stuffy | Not stuffy | Fresh |
| Remarks | Dizziness, chest tightness | Dizziness, chest tightness | Headache | Ventilation needed | Harmful gas | Appropriate oxygen concentration |
· Selfless sleep: When the brain lacks oxygen, it constrains activities to reduce oxygen consumption.
· Oxygen concentration at 18%: the oxygen concentration after 1 hour, when one person sits in a closed passenger car
