Varon Portable Oxygen Concentrator Sold on Amazon Full Review and Safety Test with Unboxing and Disassembly by an Authorized Technician
🛑 WARNING: Varon Oxygen Concentrator Review & Safety Test
Review and testing performed by Mark Luther, Chief Technical Officer at Main Clinic Supply. Mark has more than fourteen years of experience repairing and diagnosing medical oxygen concentrators. He purchased the top-selling Varon portable oxygen concentrator from Amazon and performed a complete unboxing, oxygen purity test, and full internal teardown.
⚠️ Safety Alert: Do Not Buy the Varon Portable Oxygen Concentrator
Based on our technical analysis, the Varon device fails to provide medical-grade oxygen at most settings, making it unsafe for oxygen therapy.
Instead, choose a machine you can trust and rely on:
The Inogen Rove 6 is FDA-cleared, clinically validated, and supported by our authorized service team. Don't risk your health with unverified devices.
View the Inogen Rove 6 (The Trusted Choice)Watch the Full Unboxing and Disassembly
See our full guide on unsafe Amazon oxygen machines and the signs to watch for before you buy.
Read the Amazon Safety GuideWhat Mark shows in this video
- Full unboxing of the Varon device
- Oxygen purity tested at every setting using a Salter Labs analyzer
- Internal teardown and inspection of compressor, sieve beds, wiring, and assembly
- Identification of multiple safety and quality issues
- Clear explanation in plain language on whether this device is safe for therapy
Initial Findings from the Unboxing
- The device is labeled “Made in China”. Most FDA cleared portable oxygen concentrators used in the United States are physically manufactured in the United States.
- The only certificate included was a basic CE marking. This is not a U.S. medical certification.
- The manual includes a warning stating it is “not intended to be used as a life supporting device”.
- The battery is 114 watt hours. Batteries above 100 watt hours cannot be used for air travel.
- The fan was unusually loud and nitrogen discharge occurred every three to four seconds.
- The device speaks when turning on and off.
- Accessories included: carry bag, DC cord, AC adapter, remote, silicone cannula, straps.
Oxygen Purity Test Results
Mark tested oxygen concentration at every setting using a calibrated Salter Labs analyzer. Medical grade oxygen must remain above eighty seven percent. Here is what the Varon delivered.
- Setting 1: About ninety one to ninety two percent after warm up. Medical grade.
- Setting 2: 52 percent oxygen purity. Not medical grade.
- Setting 3: 39 percent oxygen purity. Not medical grade.
- Setting 4: 33 percent oxygen purity. Not medical grade.
- Setting 5: 29 percent oxygen purity. Not medical grade.
- Setting 6: 28 percent oxygen purity. Not medical grade.
Mark’s conclusion: Only setting one provides medical grade oxygen. Any setting above that cannot be trusted for therapy.
For someone with COPD, emphysema, pulmonary fibrosis, or exertional desaturation, this drop in purity can cause dizziness, fatigue, or unsafe oxygen saturation.
Internal Teardown Findings
Fasteners and Serviceability
- Standard Phillips screws throughout
- No tamperproof hardware found in true medical devices
- Design suggests the unit is not intended to be repaired
Duct Tape Inside the Device
Mark found duct tape holding components in place. He stated he has never seen this in any medical concentrator in fourteen years of repairs.
Compressor Quality
- Visible rust on the compressor even before use
- Rust indicates poor materials that fail faster
- Compressor degradation reduces oxygen purity