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FreeStyle Comfort Portable Oxygen (Certified Pre-Owned)

Certified Pre-Owned portable oxygen concentrator — 5 lb, pulse dose, curved to fit

Original price was: US$1,945.00.Current price is: US$1,295.00.

✓ 1-Year Warranty by American Oxygen

Call (786) 755-8063

5 pulse settingsUp to 16 h on 16-cellAirline-friendly — cabin-readyFDA-cleared deviceGenuine CAIRE · Certified Pre-Owned

5Pulse settings

1,050 mL/minMax output

5 lbWeight (8-cell)

Up to 16 h16-cell battery

5Pulse settings

1,050 mL/minMax output

5 lbWeight (8-cell)

Up to 16 h16-cell battery

Certified Pre-Owned genuine CAIRE — inspected & tested
5 lb · 5 pulse settings up to 1,050 mL/min
Up to 16 h on the 16-cell battery (setting 2)
Airline-friendly · 1-Year Warranty by American Oxygen

5 pulse settingsUp to 16 h on 16-cellAirline-friendly — cabin-readyFDA-cleared deviceGenuine CAIRE · Certified Pre-Owned

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Brand: Caire
SKU: AS200‐1-REFURB
Category: Portable Oxygen Concentrator

Certified Pre-Owned portable oxygen concentrator

A 5-lb portable with strong pulse output and all-day battery — Certified Pre-Owned

The CAIRE FreeStyle Comfort pairs a light 5-lb body with a curved design that sits comfortably at your side, 5 pulse settings, and one of the stronger max outputs in its class at 1,050 mL/min. This is a genuine CAIRE unit, Certified Pre-Owned — inspected, tested, and backed by a 1-year warranty by American Oxygen — with up to 16 hours of runtime on the 16-cell battery.

Certified Pre-Owned: professionally inspected and performance-tested. 1-Year Warranty by American Oxygen. Airline-friendly — meets the FAA acceptance criteria for portable oxygen concentrators.

Why this concentrator

Strong pulse output

5 settings up to 1,050 mL/min — one of the higher max outputs among lightweight portables, useful if your setting needs are on the higher end.

All-day battery options

Up to 8 hours on the 8-cell battery and up to 16 hours on the 16-cell (at setting 2) — pick the battery that matches your day.

Comfortable to carry

About 5 lb with a curved shape designed to rest naturally against your body, so it's easy to wear on a shoulder strap for hours.

Airline-friendly for travel

Meets the FAA acceptance criteria for portable oxygen concentrators and is rated from −1,250 to 10,000 ft, so it travels well.

Genuine CAIRE, tested

A real FreeStyle Comfort, Certified Pre-Owned — inspected and performance-checked, then backed by a 1-year warranty by American Oxygen.

Battery runtime by setting

Setting	Output (mL/min)	8-cell	16-cell
1	210	8 h	16 h
2	420	4 h	8 h
3	630	3 h	6 h
4	840	2.25 h	4.5 h
5	1,050	2 h	4 h

Recharge

8-cell 3.5 h · 16-cell 6 h

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

Details

Technical specifications

Flow type	Pulse dose only
Pulse settings	5 (1–5)
Output per setting	210 / 420 / 630 / 840 / 1,050 mL/min
Max output	1,050 mL/min (setting 5)
Oxygen concentration	90% (+5.5/−3%)
Weight	5 lb (8-cell battery) · 6 lb (16-cell)
Dimensions	10.0 × 7.3 × 3.1 in (8-cell)
Sound level	39.9 dB(A) (setting 2)
Battery (8-cell)	Setting 1: 8 h · 2: 4 h · 3: 3 h · 4: 2.25 h · 5: 2 h
Battery (16-cell)	Setting 1: 16 h · 2: 8 h · 3: 6 h · 4: 4.5 h · 5: 4 h
Recharge	8-cell 3.5 h · 16-cell 6 h
Altitude range	−1,250 to 10,000 ft
Air travel	Airline-friendly — meets the FAA acceptance criteria for portable oxygen concentrators
Model status	In production
Condition	Certified Pre-Owned
Warranty	1-Year Warranty by American Oxygen

Warranty & condition

1-Year Warranty by American Oxygen

In short

The CAIRE FreeStyle Comfort is a 5-lb pulse-dose portable oxygen concentrator with 5 settings. Its output ranges from 210 mL/min at setting 1 to 1,050 mL/min at setting 5, at 90% oxygen purity. This unit is Certified Pre-Owned: inspected, performance-tested, and covered by a 1-year warranty by American Oxygen. Battery runs up to 8 h (8-cell) or up to 16 h (16-cell) at setting 2. It is airline-friendly, meets the FAA acceptance criteria for portable oxygen concentrators, and is rated from −1,250 to 10,000 ft. It weighs 5 lb (8-cell) and runs at 39.9 dB(A) at setting 2; this device is FDA-cleared.

Frequently asked questions

How much oxygen does the FreeStyle Comfort put out?

5 pulse settings from 210 to 1,050 mL/min, at 90% oxygen purity — a strong max output for a lightweight portable.

How long does the battery last?

At setting 2, up to 8 hours on the 8-cell battery and up to 16 hours on the 16-cell. Runtime is lower at higher settings — see the settings table above. Recharge is about 3.5 h (8-cell) and 6 h (16-cell).

Can I fly with it?

Yes. It's airline-friendly and meets the FAA acceptance criteria for portable oxygen concentrators. Confirm your airline's paperwork and battery rules before traveling.

How heavy is it?

About 5 lb with the 8-cell battery and about 6 lb with the 16-cell — light enough to wear on a shoulder strap comfortably.

Is it pulse or continuous flow?

Pulse dose only, with 5 settings. If you need continuous flow, ask us and we'll point you to the right option.

What does Certified Pre-Owned mean here?

A genuine CAIRE unit that our team has inspected and performance-tested, sold ready to use with a 1-year warranty by American Oxygen.

Want a strong, light portable for less?

This Certified Pre-Owned FreeStyle Comfort gives you high pulse output and up to 16 hours of battery in a 5-lb body, backed by a 1-year warranty by American Oxygen. Call or message our Doral, FL team to choose the right battery and check availability before you buy.

Call (786) 755-8063

Dimensions	15 × 13 × 11 in
Condition	Certified Pre-Owned
Pulse settings	6
Warranty	1-year
Operating Mode	Pulse Dose
Battery Option	16 Cell Battery, 2 x 8 Cell Battery, 8 Cell Battery