breathing concentrated oxygen flushes stale air from upper airways, improving how much fresh air reaches the lungs
Nasopharyngeal dead-space washout by high-flow nasal cannula improves alveolar ventilation and enhances clearance of carbon dioxide, reducing effective dead-space ventilation.
What this means for you
When stale, carbon-dioxide-rich air is cleared from the upper airway before each breath, more of every inhale actually reaches the lungs where gas exchange happens. Most people experience this as a sense of breathing more easily, feeling more alert, and recovering faster — because your body is running on cleaner, more efficient oxygen delivery.
The published research
High-Flow Nasal Cannula in Patients Awaiting Lung Transplant: Evidence, Clinical Applications, and Outcomes
Advances in Respiratory Medicine · 2026
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.