Rhythm P2-S4 Portable Oxygen Concentrator
The Rhythm P2-S4 Portable Oxygen Concentrator delivers dependable oxygen therapy in a compact, travel-ready design built for modern, active lifestyles. Engineered for efficiency and quiet operation, the P2-S4 provides consistent oxygen delivery while maintaining low noise and excellent heat dissipation for enhanced comfort and safety during extended use.
Designed with portability in mind, this lightweight concentrator weighs as little as 3.3 lbs and features a high-performance adsorption sieve bed that supports optimal oxygen concentration levels. Its flexible battery system allows users to choose single, double, or triple battery configurations for extended runtime, making it ideal for daily errands, travel, and long outings.
With FAA acceptance for in-flight use and included AC and DC charging options, the P2-S4 ensures reliable oxygen support wherever life takes you—at home, on the road, or in the air. Combining performance, convenience, and versatility, it helps users maintain independence and confidence with dependable oxygen therapy.
- Compact & Ultra-Lightweight Design – Weighs as little as 3.3 lbs for effortless portability and everyday use
- Flexible Battery Options – Choose single, double, or triple battery configurations for extended runtime up to 7.2 hours
- High Adsorption Sieve Bed – Delivers optimal oxygen concentration (87%–96%) for reliable therapy
- Quiet & Efficient Operation – Low noise output and excellent heat dissipation enhance comfort during continuous use
- FAA Accepted for Air Travel – Approved for use on commercial flights, making it ideal for travelers
- AC & DC Charging Included – Charge at home or in the car for maximum convenience on the go
- User-Friendly LCD Display – Clear 2” screen with simple controls for easy operation and monitoring
- Designed for 24/7 Use – Built for continuous, dependable oxygen therapy day or night
- Multiple Flow Settings – Four adjustable settings to meet varying oxygen needs
- Fast Recharge Time – Approx. 2-hour AC charge time minimizes downtime between uses
Comparison Chart: P2-S4 vs P2-E6 vs P2-E7 vs TOC3
Compare key specs at a glance—delivery type, settings, battery performance, size/weight, and travel readiness. Perfect for product pages, collections, or buying guides.
| Feature | P2-S4 | P2-E6 | P2-E7 | TOC3 |
|---|---|---|---|---|
| Oxygen Delivery | Pulse Dose (4 settings) | Pulse Dose (6 settings) | Pulse Dose (7 settings) | Continuous Flow up to 3 LPM + Pulse (up to 10) |
| Oxygen Concentration | 87–96% | 90% ± tolerance | 90% ± tolerance | 90% ± tolerance |
| Battery Duration (Setting 1) | Up to 7.2 hrs* | Up to 5.4 hrs | Up to 6 hrs | Up to 6.6 hrs |
| Weight | 3.3–4.4 lbs (battery dependent) | 4.37 lbs | 4.37 lbs | 17.2 lbs (with battery) |
| Dimensions | Approx. 6.7" H × 6.2" L × 3.4" W | 8.7" × 6.3" × 3.4" | 8.7" × 6.3" × 3.4" | 11.1" × 6.7" × 15" |
| Noise Level | Low / Quiet Operation | Low Noise | Low Noise | Quiet Operation |
| FAA Approved | Yes | Yes | Yes | Yes |
| Charging Options | AC & DC Car Charger | AC & DC Car Charger | AC & DC Car Charger | AC Power + External Charger Available |
| Best For | Ultra-light travel & daily use | Reliable portable therapy | Higher pulse settings & flexibility | Hospital-to-home & continuous flow needs |
*Battery duration varies by flow setting, battery condition, and configuration (where applicable).
P2-S4
Lightest, travel-friendly option with flexible battery configurations for extended time away from outlets.
P2-E6
Balanced performance and portability for everyday oxygen therapy with dependable pulse settings.
P2-E7
Expanded pulse settings for users who need more adjustment flexibility while staying compact.
TOC3
Hospital-to-home solution with continuous flow up to 3 LPM plus pulse mode—built for 24/7 reliability.
*Rx Only - Please note that this item can only ship once a physicians note or prescription has been sent to [email protected].
Specifications
| Size & Weight | |
|---|---|
| Size (Single Battery) | 3.4” W × 6.2” D × 6.7” H |
| Size (Double Battery) | 6.2” L × 3.4” W × 6.7” H |
| Size (Triple Battery) | 6.2” L × 3.4” W × 7.5” H |
| Weight (Single Battery) | 3.3 lbs |
| Weight (Double Battery) | 4 lbs |
| Weight (Triple Battery) | 4.4 lbs |
| General Specifications | |
| Warm-up Time | 3 minutes |
| Flow Settings | 4 flow settings |
| Oxygen Concentration | 87% – 96% |
| AC Power Supply | 100–240V, 50–60Hz (auto-sensing) |
| Rechargeable Battery | 14.4V DC 3.35A MAX |
| Battery & Power | |
| Single Battery Capacity | 3,400 mAh |
| Double Battery Capacity | 6,800 mAh |
| Triple Battery Capacity | 10,200 mAh |
| Battery Duration | Up to 2.5 hours (Setting 1) |
| Charge Time | Approx. 2 hours (AC) |
| Display & Operation | |
| LCD Display | 2” screen |
| Controls | Simple controls with easy-to-read display |
| Usage | Designed for 24/7 operation |
Videos
Downloads
Downloads
FAQs
- Low oxygen concentration warning
- Low battery alert
- High/low temperature warning
- High/low pressure alert
- Power failure notification
- Sieve bed replacement reminder
- Keeping air vents clean and unobstructed
- Charging the battery regularly
- Replacing the sieve bed when indicated by the alarm
- Following manufacturer guidelines for cleaning
- Active users who need oxygen on the go
- Frequent travelers
- Individuals seeking a lightweight, portable solution
- Patients transitioning from hospital to home care
Warranty
Warranty:
• Device: Three years
• Sieve bed: Two years
• Battery: One year
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Rhythm P2-S4 Portable Oxygen Concentrator delivers dependable oxygen therapy in a compact, travel-ready design built for modern, active lifestyles. Engineered for efficiency and quiet operation, the P2-S4 provides consistent oxygen delivery while maintaining low noise and excellent heat dissipation for enhanced comfort and safety during extended use.
Designed with portability in mind, this lightweight concentrator weighs as little as 3.3 lbs and features a high-performance adsorption sieve bed that supports optimal oxygen concentration levels. Its flexible battery system allows users to choose single, double, or triple battery configurations for extended runtime, making it ideal for daily errands, travel, and long outings.
With FAA acceptance for in-flight use and included AC and DC charging options, the P2-S4 ensures reliable oxygen support wherever life takes you—at home, on the road, or in the air. Combining performance, convenience, and versatility, it helps users maintain independence and confidence with dependable oxygen therapy.
- Compact & Ultra-Lightweight Design – Weighs as little as 3.3 lbs for effortless portability and everyday use
- Flexible Battery Options – Choose single, double, or triple battery configurations for extended runtime up to 7.2 hours
- High Adsorption Sieve Bed – Delivers optimal oxygen concentration (87%–96%) for reliable therapy
- Quiet & Efficient Operation – Low noise output and excellent heat dissipation enhance comfort during continuous use
- FAA Accepted for Air Travel – Approved for use on commercial flights, making it ideal for travelers
- AC & DC Charging Included – Charge at home or in the car for maximum convenience on the go
- User-Friendly LCD Display – Clear 2” screen with simple controls for easy operation and monitoring
- Designed for 24/7 Use – Built for continuous, dependable oxygen therapy day or night
- Multiple Flow Settings – Four adjustable settings to meet varying oxygen needs
- Fast Recharge Time – Approx. 2-hour AC charge time minimizes downtime between uses
Comparison Chart: P2-S4 vs P2-E6 vs P2-E7 vs TOC3
Compare key specs at a glance—delivery type, settings, battery performance, size/weight, and travel readiness. Perfect for product pages, collections, or buying guides.
| Feature | P2-S4 | P2-E6 | P2-E7 | TOC3 |
|---|---|---|---|---|
| Oxygen Delivery | Pulse Dose (4 settings) | Pulse Dose (6 settings) | Pulse Dose (7 settings) | Continuous Flow up to 3 LPM + Pulse (up to 10) |
| Oxygen Concentration | 87–96% | 90% ± tolerance | 90% ± tolerance | 90% ± tolerance |
| Battery Duration (Setting 1) | Up to 7.2 hrs* | Up to 5.4 hrs | Up to 6 hrs | Up to 6.6 hrs |
| Weight | 3.3–4.4 lbs (battery dependent) | 4.37 lbs | 4.37 lbs | 17.2 lbs (with battery) |
| Dimensions | Approx. 6.7" H × 6.2" L × 3.4" W | 8.7" × 6.3" × 3.4" | 8.7" × 6.3" × 3.4" | 11.1" × 6.7" × 15" |
| Noise Level | Low / Quiet Operation | Low Noise | Low Noise | Quiet Operation |
| FAA Approved | Yes | Yes | Yes | Yes |
| Charging Options | AC & DC Car Charger | AC & DC Car Charger | AC & DC Car Charger | AC Power + External Charger Available |
| Best For | Ultra-light travel & daily use | Reliable portable therapy | Higher pulse settings & flexibility | Hospital-to-home & continuous flow needs |
*Battery duration varies by flow setting, battery condition, and configuration (where applicable).
P2-S4
Lightest, travel-friendly option with flexible battery configurations for extended time away from outlets.
P2-E6
Balanced performance and portability for everyday oxygen therapy with dependable pulse settings.
P2-E7
Expanded pulse settings for users who need more adjustment flexibility while staying compact.
TOC3
Hospital-to-home solution with continuous flow up to 3 LPM plus pulse mode—built for 24/7 reliability.
*Rx Only - Please note that this item can only ship once a physicians note or prescription has been sent to [email protected].
Specifications
| Size & Weight | |
|---|---|
| Size (Single Battery) | 3.4” W × 6.2” D × 6.7” H |
| Size (Double Battery) | 6.2” L × 3.4” W × 6.7” H |
| Size (Triple Battery) | 6.2” L × 3.4” W × 7.5” H |
| Weight (Single Battery) | 3.3 lbs |
| Weight (Double Battery) | 4 lbs |
| Weight (Triple Battery) | 4.4 lbs |
| General Specifications | |
| Warm-up Time | 3 minutes |
| Flow Settings | 4 flow settings |
| Oxygen Concentration | 87% – 96% |
| AC Power Supply | 100–240V, 50–60Hz (auto-sensing) |
| Rechargeable Battery | 14.4V DC 3.35A MAX |
| Battery & Power | |
| Single Battery Capacity | 3,400 mAh |
| Double Battery Capacity | 6,800 mAh |
| Triple Battery Capacity | 10,200 mAh |
| Battery Duration | Up to 2.5 hours (Setting 1) |
| Charge Time | Approx. 2 hours (AC) |
| Display & Operation | |
| LCD Display | 2” screen |
| Controls | Simple controls with easy-to-read display |
| Usage | Designed for 24/7 operation |
Videos
Downloads
Downloads
FAQs
- Low oxygen concentration warning
- Low battery alert
- High/low temperature warning
- High/low pressure alert
- Power failure notification
- Sieve bed replacement reminder
- Keeping air vents clean and unobstructed
- Charging the battery regularly
- Replacing the sieve bed when indicated by the alarm
- Following manufacturer guidelines for cleaning
- Active users who need oxygen on the go
- Frequent travelers
- Individuals seeking a lightweight, portable solution
- Patients transitioning from hospital to home care
Warranty
Warranty:
• Device: Three years
• Sieve bed: Two years
• Battery: One year
