A: Yes, a prescription is required for the purchase of the Rhythm P2 Portable Oxygen Concentrator. This is to ensure the device is appropriate for your specific needs and condition.
SKU: P2-OB
Rhythm P2 Portable Oxygen Concentrator - Open Box
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$1,999.00
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Key Features
- Description
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- Specs
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- Reviews 6
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Used Rhythm P2 Portable Oxygen Concentrator
Lightweight pulse dose oxygen therapy for daily use, errands, and travel.
This used Rhythm P2 portable oxygen concentrator is a compact pulse dose oxygen machine designed for people who want a lighter, more affordable way to stay mobile with prescribed oxygen therapy. Weighing 4.37 pounds with battery, it is easy to carry for appointments, short outings, travel, and everyday routines.
This unit has been pre-owned, fully tested, inspected, cleaned, and sanitized to ensure it meets quality and performance standards. It is in excellent working condition.
Important device type
The Rhythm P2 is a pulse dose oxygen concentrator, not a continuous flow machine. It delivers oxygen when inhalation is detected and offers settings 1 through 5. Before ordering, confirm with your clinician that pulse dose oxygen is appropriate for your prescription.
Key specifications
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Condition: Used, pre-owned
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Weight: 4.37 lb with battery
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Dimensions: 8.70 in L x 3.35 in W x 6.30 in H
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Oxygen delivery: Pulse dose
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Settings: 1 to 5
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Oxygen concentration: 90 percent, minus 3 percent / plus 6 percent
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Maximum oxygen output: Up to 1,000 ml per minute
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Warm-up time: About 2 minutes
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Noise level: 38 dBA at setting 2, up to 49 dBA at setting 5
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Power options: AC and DC power supported
Battery runtime
Battery runtime depends on oxygen setting, breathing rate, environment, and battery condition. Because this is a used unit, actual battery life may be lower than a new battery.
Typical maximum battery runtime:
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Setting 1: up to 5 hours
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Setting 2: about 4 hours
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Setting 3: about 3 hours
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Setting 4: about 2 hours 14 minutes
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Setting 5: about 1 hour 50 minutes
If you need more predictable runtime for longer days, many customers add a replacement battery or keep a spare battery available.
Why choose a used Rhythm P2
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Lower upfront cost than a new portable oxygen concentrator
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Lightweight design for easier daily mobility
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Pulse dose oxygen delivery for prescribed portable use
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Simple controls and clear display for users and caregivers
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AC and DC power support for home and vehicle use
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Travel-friendly design for active lifestyles
Who this portable oxygen concentrator is best for
This used Rhythm P2 is best for people prescribed pulse dose oxygen who want a lightweight portable oxygen concentrator for daily routines, short outings, appointments, and travel. It can be a practical option for seniors, caregivers, COPD patients, and anyone looking for a lower-cost portable oxygen solution.
Travel and power flexibility
The manufacturer states the Rhythm P2 meets FAA acceptance criteria, which may make it suitable for air travel. Airline requirements can vary, so always confirm current battery and approval rules directly with your airline before flying.
The unit supports both AC and DC power, making it easier to use at home or while traveling by car.
What to expect when buying used
A used oxygen concentrator may show normal cosmetic wear. Before ordering, it is important to confirm what accessories are included with the listing, such as battery, charger, carry bag, or power cords, along with any available return or warranty terms.
Basic setup overview
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Insert the battery until it clicks into place
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Attach a nasal cannula to the oxygen outlet
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Press the power button and allow the warm-up period
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Adjust the setting from 1 to 5 according to your prescription
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Keep the unit well ventilated during use
Cleaning and maintenance
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Wipe the exterior with a soft, slightly damp cloth
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Keep air inlets and outlets free of dust and debris
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Clean or replace filters as directed by the manufacturer
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Avoid exposure to moisture, rain, or extreme heat
Need help deciding?
If you are not sure whether the Rhythm P2 is the right fit for your oxygen routine, contact us with your prescribed oxygen type and how you plan to use the machine at home, while walking, or during travel, and we can help you choose the best setup.
Related parts
| Tube Connection | Standard Cannula Connection |
| Model | P2 - PreOwned |
| HCPCS Codes | E1392, E1390 |
| Color | White |
| Operating Modes | Pulse Dose |
| Altitude Adjustment | Auto-adjust up to 10,000 ft |
| Sound Level | 49 dBA |
| Carrying Case | Included |
| FAA-Approved | Yes |
| Smartphone App | No |
| Machine Size Only | 3.3" W x 8.7" D x 6.3" H |
| Machine Weight | 4.37 lbs |
| Weight with Battery | 5.37 lbs |
| AC Input | 100-240 VAC, 50/60 Hz |
| AC Power Supply | Included |
| DC Converter | No |
| Maximum Pressure | 25 PSI |
| Output | 1-5 LPM (Continuous Flow) |
| Breath Rate | Up to 10 Breaths per Minute |
| Oxygen Purity | 90% (-3%, +6%) |
| Battery Duration | Up to 5 hours (Setting 1) |
| Battery Recharge | 4 Hours Approx. |
| Weight with Battery | 5.37 lbs |
| Battery Warranty | 1 year |
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FAQs
Is this Rhythm P2 oxygen concentrator new or used?
This is a used, pre-owned Rhythm P2 portable oxygen concentrator. It has been tested, inspected, cleaned, and sanitized, and it is in excellent working condition.
Is the Rhythm P2 a continuous flow or pulse dose machine?
The Rhythm P2 is a pulse dose oxygen concentrator. It delivers oxygen when it detects inhalation and is not a continuous flow machine.
What oxygen settings does the Rhythm P2 offer?
The Rhythm P2 offers pulse dose settings 1 through 5. Your prescribed setting and device type should always be confirmed with your clinician before purchase.
How long does the battery last?
Battery runtime depends on the setting, breathing rate, environment, and battery condition. Typical maximum battery life is up to 5 hours on setting 1, about 4 hours on setting 2, about 3 hours on setting 3, about 2 hours 14 minutes on setting 4, and about 1 hour 50 minutes on setting 5.
How much does the Rhythm P2 weigh?
The Rhythm P2 weighs 4.37 pounds with the battery installed, making it a lightweight option for daily use, errands, appointments, and travel.
Can I use the Rhythm P2 for travel?
Yes, the Rhythm P2 is designed for portability and the manufacturer states it meets FAA acceptance criteria. Airline policies can vary, so confirm battery planning and approval requirements directly with your airline before flying.
Who is the Rhythm P2 best for?
The Rhythm P2 is best for users prescribed pulse dose oxygen who want a lightweight portable oxygen concentrator for daily mobility, short outings, errands, appointments, or travel.
What should I expect when buying a used oxygen concentrator?
A used unit may show normal cosmetic wear, and battery condition may vary. It is important to confirm what accessories are included, the battery condition, and any available return or warranty terms before ordering.
What accessories should I confirm before ordering?
Before ordering, confirm whether the listing includes the battery, power supply, car charger, carry case, and any other accessories you may need for daily use or travel.
How easy is it to maintain and clean?
The Rhythm P2 Portable Oxygen Concentrator is relatively easy to maintain and clean. Regular cleaning and filter checks are recommended to ensure optimal performance. The manufacturer's user manual provides detailed instructions on how to clean the device and replace the filters. It's important to follow these instructions carefully to maintain the efficiency and safety of your portable oxygen concentrator model P2.
Can I adjust the oxygen flow rate?
Yes, the Rhythm P2 Portable Oxygen Concentrator has adjustable pulse flow settings from 1 to 5 to match your individual needs. This allows you to customize the oxygen flow rate based on your specific condition and activity level. Consulting with your healthcare provider is recommended to determine the appropriate oxygen flow setting for you.
What power sources can I use with this concentrator?
The Rhythm P2 Portable Oxygen Concentrator can be powered by AC, DC, or an external battery adapter, providing flexibility in different settings. This means you can use it at home, in the car, or on the go without worrying about power availability. The included power adapters make it easy to connect the concentrator to various power sources.
Is this oxygen concentrator suitable for travel?
Yes, the Rhythm P2 Portable Oxygen Concentrator is designed for portability and travel, with its lightweight design and FAA approval. Its compact size and multiple power options make it convenient to take with you on trips. However, it's important to check with your airline and destination's regulations regarding the transportation of medical devices to ensure a smooth travel experience.
What types of conditions is this oxygen concentrator suitable for?
The Rhythm P2 Portable Oxygen Concentrator is suitable for individuals with chronic respiratory conditions such as COPD, pulmonary fibrosis, or emphysema. It can also be used by those who require oxygen therapy for other reasons, such as sleep apnea or altitude sickness. However, it's essential to consult with your healthcare provider to determine if the Rhythm P2 Portable Oxygen Concentrator is the right oxygen concentrator for your specific needs.