Pulse Dose vs. Continuous Flow Oxygen: What’s the Difference?
Choosing the right oxygen concentrator starts with understanding how oxygen is delivered. The two most common delivery types are pulse dose and continuous flow. Each has its own benefits, and the right option depends on your specific needs, lifestyle, and doctor’s recommendation.
At Travel Oxygen, we specialize in portable oxygen concentrators that empower you to live life freely—whether you’re at home or on the go. Here’s a helpful breakdown of pulse vs. continuous flow to help you make the best decision.
What Is Pulse Dose Oxygen?
Pulse dose (or intermittent flow) oxygen is delivered only when you inhale. The machine detects your breath and releases a measured “pulse” of oxygen, conserving energy and extending battery life.
Ideal for:
- Active users who are mobile
- Daytime use and travel
- Battery-powered use on-the-go
Our popular Liberty 2 Portable Oxygen Concentrator is a lightweight, easy-to-carry pulse dose unit designed for mobility, making it perfect for errands, road trips, or daily routines.
What Is Continuous Flow Oxygen?
Continuous flow oxygen delivers a steady stream of oxygen, whether you’re inhaling or exhaling. This delivery type is critical for those who require constant oxygen support or use oxygen while sleeping.
Ideal for:
- Patients with higher oxygen needs
- Overnight use or with CPAP/BiPAP machines
- Situations where pulse sensing may not work reliably
While most travel-friendly devices use pulse delivery, certain home units and a few larger portables offer continuous flow. Explore all our portable oxygen concentrators for sale to find a solution that fits your medical requirements and lifestyle.
Key Differences at a Glance
| Feature | Pulse Dose | Continuous Flow |
|---|---|---|
| Oxygen Delivery | Only when you inhale | Constant flow of oxygen |
| Battery Life | Longer (more efficient) | Shorter (higher energy use) |
| Best For | Active daytime use, travel | Nighttime use, severe oxygen needs |
Recommended Portable Models
- Liberty 2 – Our lightest and smallest pulse dose unit, ideal for high-endurance users.
- Inogen Rove 6 – A powerful pulse dose option with extended battery and FAA approval for air travel.
Not sure which model fits your needs? Compare all our portable oxygen concentrators for sale or contact our team for personalized guidance.
Not Ready to Buy? Rent Instead
Need a concentrator for a short trip or recovery period? Our flexible oxygen concentrator rental program is an easy way to try different flow types before committing to a purchase.
Choosing What’s Right for You
Always talk to your physician before switching from continuous to pulse flow (or vice versa). Some individuals can benefit from pulse during the day and continuous flow at night. Our oxygen experts can help you match your doctor’s recommendation to the best unit for your lifestyle.
Still Have Questions?
Let Travel Oxygen guide you to the best option for your needs. Contact us here or call us to speak with a friendly oxygen specialist.
Breathe easy. Live freely. Travel with confidence—powered by Travel Oxygen
