Loading
The Oxygen & Sleep Series
Breathe like it’s engineered, not prescribed.
Portable oxygen and sleep systems built to the tolerances of a chronograph and the silence of a reading room. No insurance paperwork, no waiting rooms — just air, done properly.
Caire
Caire FreeStyle Comfort
- Weight
- 5 lbs (with battery)
- Dimensions
- 10" x 7.3" x 3.1"
- Flow Settings
- 1-5 Pulse Dose
- Battery Life
- 8-16 hours
FAA Approved · Prescription Required
01 — Oxygen Therapy
5 lbs. 8 hours of battery. Zero hiss.
Molecular sieve concentrators built on the same PSA technology used in commercial aircraft — quiet enough for a boardroom, light enough to forget you’re wearing it.
View Concentrators02 — Sleep Apnea
The quietest breath you’ll never remember taking.
CPAP and BiPAP systems tuned for sub-27 dB operation and auto-titrating pressure — the machine adjusts to you, not the other way round.
View CPAP & BiPAPFDA-Registered
Every device on file
48-Hour Delivery
Continental US
Unmarked Packaging
Complete discretion
3-Year Concierge
One line, one person
Built for scrutiny
The numbers we’d want to see, before buying
FAA travel-approved
100% of oxygen line
Every concentrator we sell is cleared for in-flight use — check the model plate, not the fine print.
SOUND
Quieter than a library, at arm's length.
WEIGHT
Lighter than a laptop.
BATTERY
A full transatlantic flight, unplugged.
ALTITUDE
Rated cabin-pressure ceiling.
What we actually deliver
Two atoms. That’s the entire product.
Every concentrator on this site does one job: pull ambient air through a molecular sieve and hand you back O₂ at 87–96% purity. No proprietary chemistry, no trade secret — just diatomic oxygen, delivered quietly and on schedule.
Read the mechanism in full in how oxygen concentrators work.
Flagship — Caire
Caire FreeStyle Comfort
- Brand
- Caire
- FAA travel status
- Approved
- Condition
- New
Prescription required by law for this device class. Upload or e-verify in under two minutes at checkout — we handle the rest.
We don’t bill insurance. On purpose.
No prior authorization queues. No claim denials three weeks after delivery. You see one price, you pay it, your equipment ships. That trade — simplicity for the paperwork — is the whole idea.
Speed
Orders ship in 48 hours — insurance authorization alone often takes longer than that.
Privacy
No claim is filed, which means no record with your carrier of what you purchased or why.
Clarity
The price on the page is the price at checkout. No adjudication, no surprise balance later.
Insurance policy:Currently we don’t accept Insurance, Medicaid, or Medicare. All orders are self-pay. This is stated here, at checkout, and in our FAQ — no exceptions, no fine print.
CIRRUS at a glance
Figures drawn from the live catalog
111
Devices & accessories in catalog
18
Manufacturers, authorized channels only
935
US cities with confirmed 48-hr delivery
131
Journal articles, sourced and cited
For Clinical & Institutional Buyers
Ventilators, sourced the same way — authorized channels, direct concierge support.
ICU, transport, and MRI-compatible mechanical ventilators from five manufacturers, for biomed and procurement teams, not individual patients. Different buyer, same standard.
Hamilton MedicalDrägerGetingeMindrayZoll
Areas Served
48-hour shipping to 935 cities. No branch office in any of them.
We’re a direct-ship retailer, not a chain of local storefronts — every order gets the same authorized inventory, prescription verification, and concierge line, wherever it’s going.
Journal — 04.2026