Respiratory Instruments, Direct.

ACHC Accredited · Authorized Inogen, ResMed, Philips & CAIRE Dealer · Cash-Pay Only · 25 Years in Business

800Oxygen is an ACHC-accredited direct-to-consumer specialist in portable and stationary oxygen concentrators, CPAP and BiPAP machines. We do not accept insurance, Medicare, or Medicaid — by design — so pricing, service, and shipping stay under our control.

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Why patients choose 800Oxygen

• ACHC accredited supplier — independently verified for patient safety
• Authorized dealer for Inogen, ResMed, Philips Respironics, CAIRE, OxyGo, SeQual
• 300,000+ customers served · A+ BBB rating
• Free shipping on orders $99+ · 30-day return policy
• Certified respiratory therapists available 7 days/week at (877) 699-4365
• Cash-pay only — we do not bill insurance, Medicare, or Medicaid

Top categories

• Portable Oxygen Concentrators — Inogen One G5, Rove 6, OxyGo NEXT, CAIRE FreeStyle Comfort
• Home Oxygen Concentrators — 5L, 10L, and high-flow models
• CPAP & BiPAP Machines — ResMed AirSense 11, Philips DreamStation 2
• Rentals — flexible weekly & monthly options for travel and short-term therapy
• Flying with Oxygen — FAA Guide
• Submit Your Prescription