Contraindications and Risks
Absolute Contraindications
- Untreated pneumothorax
- Relative Contraindications
- Current upper respiratory tract infections, chronic sinusitis or sinus problems
Pregnancy
- Severe emphysema, CO2 retention, COPD or breathing problems
- Risks
Claustrophobia and anxiety in confined spaces
- Fatigue
- Ear drum complaints / rupture, sinus pain