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Rhythm Healthcare P2 Portable Oxygen Concentrator

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Rhythm Healthcare P2 (Open Box)

5 pulse settings (1–5) · up to 1,000 mL/min oxygen output

Rated 5 out of 5 based on 4 customer ratings

(4 customer reviews)

Original price was: US$1,945.00.Current price is: US$1,495.00.

Condition

NewUS$1,945.00 Certified Pre-OwnedFrom US$750.00Open Box

✓ Genuine, unused unit with the full Rhythm factory warranty — 3-yr device · 1-yr sieve columns · 1-yr battery.

Call (786) 755-8063

Open Box · like-newFAA approvedFDA clearedAuthorized Rhythm dealerFree shipping $99+

5pulse settings (1–5)

1,000mL/min max output

4.37 lbultralight

up to 5 hbattery, setting 1

5pulse settings (1–5)

1,000mL/min max output

4.37 lbultralight

up to 5 hbattery, setting 1

Open Box — brand-new, never used. Box opened for display only; you save versus sealed stock.
5 pulse settings, up to 1,000 mL/min and all-day battery at 4.37 lb — genuine, current-generation Rhythm P2.
FAA-approved for cabin use and FDA-cleared prescription device.
Full Rhythm factory warranty · authorized dealer · free U.S. shipping over $99.

Open Box · like-newFAA approvedFDA clearedAuthorized Rhythm dealerFree shipping $99+

Secure checkout · financing available

VISAAMEXDISC●VERaffirm

Brand: Rhythm Healthcare
SKU: P2-OB
Category: Portable Oxygen Concentrator

OPEN BOX · LIKE-NEW, LOWER PRICE

A brand-new Rhythm P2, at an Open Box price

This Rhythm P2 is Open Box — brand-new and never used. The box was opened only for photos or display, then sealed and set aside, so you get a genuine, current-generation unit with 5 pulse settings, up to 1,000 mL/min and all-day battery at 4.37 lb at a lower price than sealed stock — and the same full Rhythm factory warranty.

Genuine unused unit · full factory warranty · prescription device · free U.S. shipping $99+ · call (786) 755-8063 to confirm availability.

Why this concentrator

All-day battery, ultralight body

At just 4.37 lb with up to 5 hours per battery on setting 1, the P2 disappears on your shoulder and lasts through most outings. Carry a second battery and you're covered for a full travel day.

FAA-approved & FDA-cleared

The P2 is FAA-approved for use on commercial flights, so it travels with you in the cabin. It's also an FDA-cleared medical device — genuine, prescription-grade, not a grey-market import.

Battery runtime by setting

Pulse setting	Runtime per battery	Best for
Setting 1	~5 h	Longest battery life — ideal at a low pulse setting
Setting 2	~4 h	A good balance of runtime and oxygen
Setting 3	~3 h	Mid-range use, more oxygen than the low settings
Setting 4	~2h 14m	Higher oxygen demand; shorter runtime
Setting 5	~1h 50m	Maximum output; shortest battery life

Recharge — AC wall adapter	up to 4 hours
Recharge — DC car adapter	up to 4 hours (varies with power)
Spare battery — external charger	with the compatible external charger

Per-setting runtimes are American Oxygen estimates; actual battery life varies with breath rate, altitude and battery age.

Details

Technical specifications

Oxygen delivery	Pulse dose, settings 1–5
Oxygen concentration	87% – 96% (93% typical)
Weight	4.37 lb (1.98 kg) with battery
Dimensions	8.7" D × 3.4" W × 6.3" H (22.1 × 8.6 × 16.0 cm)
Battery capacity	6,800 mAh (6.8 Ah), 14.4V · user-replaceable
Battery runtime	up to 5 hours on setting 1
Recharge time	approx. 4 h (AC) · ~2.5 h with optional external charger
Warm-up time	2 minutes
Power	AC 100–240V (worldwide) + DC car charger
Operating altitude	up to 10,000 ft (3,048 m) *
Operating temperature	41–104°F (5–40°C) *
Delivery type	Pulse dose (not continuous flow)
Certifications	FAA-approved for flights · FDA-cleared (prescription required)

Warranty & condition

Genuine, unused unit with the full Rhythm factory warranty — 3-yr device · 1-yr sieve columns · 1-yr battery.

In short

The Open Box Rhythm P2 is a brand-new, never-used Rhythm P2 — the box was opened only for display — offered below sealed-stock price. It's a genuine, FDA-cleared, FAA-approved portable oxygen concentrator with 5 pulse settings, up to 1,000 mL/min and all-day battery at 4.37 lb, sold by American Oxygen (an authorized Rhythm dealer) with the full Rhythm factory warranty and free U.S. shipping over $99.

Frequently asked questions

What does “Open Box” mean for the Rhythm P2?

An Open Box Rhythm P2 is a brand-new, unused unit — the sealed box was opened only for photos or display and then set aside. It has never been used on a patient, it's genuine and current-generation, and it carries the full Rhythm factory warranty. You simply pay less than for sealed stock.

Is the Rhythm P2 approved for airline travel?

Yes. The P2 is FAA-approved for use on commercial flights and travels with you in the cabin. Airlines typically ask for advance notice and enough charged batteries for about 150% of your flight time.

Do I need a prescription to buy the P2?

Yes. The P2 is an FDA-cleared prescription medical device. American Oxygen can help you understand what's needed — just ask when you call.

How long does the battery last?

Up to about 5 hours on setting 1, and around 1.5 hours on setting 5. Many customers carry a second battery for full travel days.

How is the P2 different from the S-series or E-series?

The S-series (S3/S4) is lighter and lower-cost with fewer settings; the E-series (E6/E7) adds settings and battery for higher needs. The P2 sits in the middle — 5 settings and all-day battery — which is why it's the most popular.

Is this a new unit with warranty?

Yes. American Oxygen is an authorized Rhythm dealer, and every Open Box Rhythm P2 is genuine and unused, backed by the full Rhythm manufacturer warranty — 3 years device, 1 year sieve columns, 1 year battery — plus our local support.

Not sure Open Box is right for you? We'll walk you through it.

An Open Box Rhythm P2 is a genuine new unit at a better price — same warranty, same performance. Call American Oxygen at (786) 755-8063 or message us to confirm current availability and get help choosing the right settings for your prescription.

Call (786) 755-8063

Dimensions	15 × 13 × 11 in
Condition	Open Box
Pulse settings	5
Warranty	3-years
Operating Mode	Pulse Dose

4 reviews for Rhythm Healthcare P2 (Open Box)

5.0

Based on 4 reviews

100

100%

Rated 5 out of 5

Sam – 13 June, 2022

I bought this portable concentrator, since the ones I was looking for were not in stock anywhere. Effective result and best price.
Rated 5 out of 5

Francisco – 15 June, 2022

Muy buen equipo, funciona perfectamente. Gracias por tan buena atención y servicio.
Rated 5 out of 5

Arnold (verified owner) – 12 August, 2025

Delivered as open box and everything was there
Delivered as open box and everything was there in new condition working great
Rated 5 out of 5

Paul – 13 August, 2025

Great Deal
Excellent unit, price, and quality. Thank you for offering this option. It’s fantastic! Everything is new. I recommend it!