Rhythm Healthcare P2-S4 Portable Oxygen Concentrator
- Weighs just 3.3 lbs and measures 3.4" x 6.2" x 6.7", so it fits easily into your daily routine without slowing you down.
- FAA approved for use on commercial flights, making it a reliable travel companion near and far.
- Up to 4.8 hours of battery life with the double battery, plus AC and DC power options for home and car use.
- Four pulse flow settings (1 through 4) allow oxygen delivery to be tailored to your prescribed therapy needs.
- Operates at altitudes up to 10,000 feet and in temperatures from 41°F to 104°F for versatile use anywhere.
- Batteries are rated for 500 full charge and discharge cycles, giving you long-term, dependable performance.
- Eligible for purchase with HSA or FSA funds; a valid physician prescription is required.
- Comes with a carrying bag, nasal cannula, AC and DC power supplies, rechargeable battery, and user manual.
Is Vital Care USA an authorized retailer?
Yes — 100% authorized. Vital Care USA only partners with fully authorized U.S. manufacturers and distributors. Every unit includes the full factory warranty and authentic U.S. serial numbers. Your purchase is always protected.
Are the oxygen concentrators brand new?
Every concentrator we ship is brand new in original factory-sealed packaging unless clearly stated otherwise. All standard accessories, manuals, and warranties are included.
You can also review our easy, customer-friendly return policy if you have questions about unopened items or eligibility.
Do I need a prescription to order?
Yes — U.S. law requires a valid prescription for most home and portable oxygen concentrators. After checkout, your doctor can fax or email it to us, or you can upload it directly.
You can also email your prescription directly to us at support@vitalcareusa.com.
Once we receive it, your order ships right away.
Vital Care USA is not a medical provider and cannot provide medical advice. We do not determine oxygen flow settings or therapy levels. Always consult your licensed healthcare provider before selecting a unit or changing your prescribed oxygen settings.
Does insurance or Medicare cover this?
Most online oxygen concentrator purchases are not covered by Medicare or private insurance when bought outright. This is because coverage is usually tied to local in-network rental programs.
Many customers still choose to buy privately because it gives them:
- Full ownership of their device
- No rental restrictions
- Freedom to travel, fly, or stay active without paperwork
When will my order ship?
Most in-stock oxygen concentrators ship within 1–2 business days after we receive your prescription and verify the order. Tracking is sent automatically by email.
We also offer next-day delivery options on select models and locations — contact us if you need fast delivery.
For full details on shipping methods, transit times, and signature requirements, please review our Shipping Policy .
Need to review returns or refunds? See our Return & Refund Policy .
What if I’m not sure which concentrator is right for me?
Whether you need long battery life, higher pulse settings, or continuous-flow support, our team can help match the right device to your prescription and lifestyle.
Speak directly with an oxygen specialist at (712) 435-1306 — we’ll walk you through your options with zero pressure.
Talk to a U.S.-based oxygen specialist now and get matched to the right device for your needs.
Call (712) 435-1306
