Does the patient use a home oxygen concentrator or a portable oxygen cylinder for supplemental oxygen?

Home Oxygen Equipment: Concentrator vs. Tank

Patients on home oxygen typically have BOTH an oxygen concentrator for stationary use at home AND portable oxygen cylinders (tanks) for mobility, with the specific setup determined by their oxygen needs and activity level. 1

Equipment Selection Based on Clinical Needs

The British Thoracic Society guidelines provide clear direction on equipment selection:

Stationary Home Use

• Oxygen concentrators should be used to deliver long-term oxygen therapy (LTOT) at flow rates of 4 L/min or less 1
• Concentrators are the primary stationary source for patients requiring continuous oxygen at home
• They are more cost-effective than cylinders when oxygen is used for more than approximately 1.4 hours per day 2

Portable/Mobile Use

• Portable oxygen should be delivered by whatever mode best suits individual patient needs to increase daily oxygen usage and activity levels 1
• This typically means portable cylinders, liquid oxygen systems, or portable oxygen concentrators (POCs)
• The device type should balance patient factors with cost-effectiveness, resources, and safety 1

Practical Equipment Combinations

Most patients receive a dual system:

1. For patients requiring LTOT (≥15 hours/day):

   • Stationary concentrator at home for continuous use
   • Portable cylinders or liquid oxygen for mobility outside the home
   • This allows patients to meet the 15-hour daily requirement while maintaining some mobility 1

2. For mobile patients with lower oxygen needs:

   • May receive portable equipment alone if hypoxemia occurs only with exercise
   • Stationary equipment plus portable equipment when resting hypoxemia is present 3

3. For patients with cluster headache:

   • High-flow capable cylinders (12 L/min) rather than concentrators, as concentrators typically cannot deliver the required high flow rates 1

Key Clinical Considerations

When determining equipment:

• Concentrators are limited to ≤4 L/min flow rates
• Patients needing >4 L/min require cylinder-based systems
• Active patients benefit from wheeled devices or backpacks to improve ambulation and quality of life 1
• Portable oxygen concentrators show variable performance, with mean daily usage of only 4.29 hours/day in real-world use 4

Safety requirements apply to all equipment types:

• Cylinders must be secured during transport (seat belt, foot-well, or boot)
• Liquid oxygen must remain upright during transport
• All oxygen sources require smoking cessation counseling and fire safety education 1

The answer to "concentrator or tank" is therefore not either/or—it's typically both, with the concentrator serving as the home base and portable cylinders/systems enabling mobility, tailored to the patient's specific flow rate requirements and activity level.