- "What? How are we even breathing? An excellent question, but not even remotely the point."
- ― Kevin Levin and Professor Paradox (Ben 10: Alien Force)
The power to survive without oxygen.
- Anaerobic Respiration
The user has no need for oxygen, allowing them to survive indefinitely in airless environments. Because of this, they can simulate powers such as Atmospheric Adaptation, Aquatic Respiration and Vacuum Adaptation.
In some cases, the user simply does not have to breathe.
- Aerial Adaptation
- Aquatic Adaptation
- Aquatic Respiration
- Bionic Physiology
- Enhanced Lung Capacity
- Respiratory System Manipulation
- Spirit Physiology
- Undead Physiology
- Despite being able to survive without Oxygen, the user is still vulnerable to environments filled with air-borne hazards.
- Users may be Oxygen Intolerant.