Buy Oxygen Concentrators | New, Refurbished & Lease Options – BuyOnMedix

Oxygen concentrators are medical devices that extract and concentrate oxygen from ambient air, delivering therapeutic oxygen to patients with respiratory conditions. Unlike traditional oxygen tanks that require regular refilling, concentrators provide an unlimited, on-demand supply of supplemental oxygen — making them the preferred solution for long-term oxygen therapy in hospitals, clinics, skilled nursing facilities, and home care settings.

Whether you're outfitting a respiratory therapy department, expanding your home medical equipment fleet, or adding oxygen delivery capability to a rural clinic, BuyOnMedix connects healthcare providers with trusted suppliers offering new, certified refurbished, and lease-to-own oxygen concentrators at competitive prices.

Why Buy an Oxygen Concentrator?

Oxygen concentrators are critical respiratory support devices with broad clinical and economic advantages:

  • Unlimited Oxygen Supply: Unlike cylinders that run out and need refilling or replacing, concentrators draw from ambient air and produce medical-grade oxygen continuously, eliminating supply chain dependency.
  • Cost-Effective Long-Term Therapy: For patients requiring supplemental oxygen daily, concentrators are far more economical than recurring cylinder deliveries or liquid oxygen refills over months and years.
  • Patient Independence: Portable oxygen concentrators (POCs) allow patients to maintain active lifestyles, travel, and leave their homes while receiving uninterrupted oxygen therapy.
  • Safety: Concentrators eliminate the storage and handling risks associated with compressed gas cylinders and liquid oxygen, including fire hazards, high-pressure vessel risks, and cryogenic burns.
  • Clinical Versatility: From low-flow supplemental oxygen in COPD management to high-flow delivery in acute care, oxygen concentrators cover a wide range of clinical oxygen needs.

Types of Oxygen Concentrators

Oxygen concentrators come in several form factors optimized for different care settings and patient mobility needs.

Stationary / Home Oxygen Concentrators

Full-size units designed for fixed placement in a patient's home or clinical setting. They typically deliver 5–10 liters per minute (LPM) of continuous-flow oxygen at 87–96% purity. They weigh 30–55 lbs and run on standard household AC power. Leading models include the Invacare Platinum, Respironics EverFlo, and DeVilbiss 525DS.

Portable Oxygen Concentrators (POCs)

Lightweight, battery-powered units weighing 3–20 lbs that allow patients to receive oxygen therapy while mobile. Most POCs deliver pulse-dose (intermittent) oxygen triggered by inhalation, though some models offer continuous flow up to 3 LPM. Popular models include the Inogen One G5, Respironics SimplyGo, and CAIRE FreeStyle Comfort.

High-Flow Oxygen Concentrators

Powerful stationary units capable of delivering 8–10+ LPM of continuous-flow oxygen. Used in clinical settings, skilled nursing facilities, and for patients with high oxygen demands. They may also supply oxygen to multiple patients simultaneously via manifold systems.

Transportable Oxygen Concentrators

Mid-size units that bridge the gap between stationary and portable. Weighing 15–25 lbs with both AC and DC power options, they offer continuous flow capability with more portability than stationary units. Ideal for patients who need continuous flow but also need to move between rooms or travel by car.

How to Choose the Right Oxygen Concentrator

Selecting an oxygen concentrator requires matching the device to the patient's prescription, lifestyle, and clinical setting:

  • Prescribed Flow Rate: Match the concentrator's maximum output to the patient's prescribed liter flow. Patients requiring 1–3 LPM have many options; those needing 5+ LPM continuous flow will need a stationary unit.
  • Continuous vs. Pulse Dose: Continuous flow delivers steady oxygen output. Pulse dose delivers oxygen only during inhalation, conserving output. Some patients (especially those on higher flows or using during sleep) require continuous flow.
  • Portability Needs: Active patients who travel need a lightweight POC with good battery life. Homebound patients are well-served by stationary units. Consider weight, battery duration, and FAA approval for air travel.
  • Noise Level: Concentrators generate some noise (typically 38–50 dB). Lower noise levels are important for overnight use and shared living spaces.
  • Altitude Performance: Concentrators may produce lower oxygen concentrations at higher altitudes. If your patients live at elevation, verify the unit's altitude rating.
  • Power Options: Consider AC, DC (car), and battery power availability. Patients who lose power frequently may need battery backup solutions.
  • Durability and Warranty: Look for units with proven reliability track records, comprehensive warranties, and accessible service networks.

What Affects Oxygen Concentrator Pricing?

Oxygen concentrator prices vary based on type, output capacity, and features:

  • Type: Stationary home units are the most affordable. Portable oxygen concentrators cost significantly more due to battery technology, miniaturized components, and lightweight engineering.
  • Flow Rate: Higher-output units (8–10 LPM) cost more than standard 5 LPM models. Continuous-flow portable units are more expensive than pulse-dose-only models.
  • Battery Life: POCs with extended battery options and fast-charging capabilities command premium pricing.
  • Brand: Leading manufacturers include Inogen, Philips Respironics, CAIRE, DeVilbiss, and Invacare. Premium brands with proven reliability and strong service networks are priced higher.
  • New vs. Refurbished: Certified refurbished concentrators typically cost 30–50% less than new. They undergo filter replacement, flow testing, oxygen purity verification, and electrical safety checks.
  • Accessories: Nasal cannulas, tubing, external batteries, carrying cases, and car chargers add to the total investment.

Frequently Asked Questions

How long does an oxygen concentrator last?

A well-maintained stationary oxygen concentrator typically lasts 5–10 years. Portable units may have shorter lifespans (3–7 years) due to battery degradation and the wear associated with mobile use. Regular filter cleaning and replacement extends service life.

What's the difference between pulse dose and continuous flow?

Continuous flow delivers a constant stream of oxygen at the set liter rate. Pulse dose delivers a bolus of oxygen only when the patient inhales, conserving oxygen output and extending battery life. Some patients — particularly those needing oxygen during sleep — require continuous flow.

Can I fly with a portable oxygen concentrator?

Yes. Many portable oxygen concentrators are FAA-approved for use on commercial flights. Always check the specific airline's requirements, carry your prescription documentation, and ensure you have enough battery capacity for the flight duration plus delays.

How noisy are oxygen concentrators?

Most modern concentrators produce 38–50 dB of noise — comparable to a quiet conversation or library environment. Newer models are significantly quieter than older designs. If noise is a concern, check the manufacturer's dB rating before purchasing.

Do oxygen concentrators need maintenance?

Yes. Regular maintenance includes cleaning or replacing air intake filters (weekly to monthly), periodic oxygen purity testing, checking tubing and connections, and annual professional servicing. Sieve beds (the molecular sieves that separate oxygen) may need replacement every 3–5 years.

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