Dynarex Resp-O2 5L Oxygen Concentrator: A Complete Guide
A quiet, easily transportable stationary concentrator built for home and clinical use — continuous flow from 0.5 to 5 LPM in a 37 lb chassis with rolling casters and a top carry handle.
For patients using a nasal cannula on a standard continuous-flow prescription, a quiet, easy-to-move concentrator makes daily life simpler — whether it's staying at home or moving between rooms in a care facility. The Dynarex Resp-O2 5L Oxygen Concentrator is built with that day-to-day usability in mind.
Delivering continuous-flow oxygen from 0.5 to 5 LPM, the Resp-O2 5L pairs quiet operation with an oxygen purity indicator (OPI), audible and visual alarms, and a user-friendly flowmeter knob — all in a 37 lb chassis with four rolling casters and an easy-grip top handle.

Engineered by Dynarex
The Resp-O2 5L is produced under the Dynarex brand, designed for use with a standard nasal cannula. As a Class II FDA-regulated medical device, it is available strictly by prescription. This listing covers the stationary 5L concentrator (Code 33950) — the Resp-O2 line also includes a separate portable pulse-dose concentrator (MPN 33955) for ambulatory use.
Dynarex Resp-O2 5L Oxygen Concentrator
Dynarex Resp-O2 5L Oxygen Concentrator
A stationary oxygen concentrator designed to provide supplemental oxygen for patients with breathing difficulties, for use with a nasal cannula. Delivers a flow range of 0.5–5 LPM via a user-friendly flowmeter knob, with an oxygen purity indicator (OPI) for output monitoring. Audible and visual alarms cover low flow-rate, low/high pressure, and power failure conditions, with a manual reset button to help ensure uninterrupted oxygen delivery. Designed for quiet operation with low noise output and an easy-to-read control panel. Weighs 37 lbs and is easily transportable with an accessible top handle and four smooth-rolling casters. Suited for home use as well as clinics, long-term care, and rehab facilities.
Complete Spec Sheet
| Specification | Detail |
|---|---|
| Brand / Manufacturer | Dynarex |
| Product / Code | Resp-O2 5L Oxygen Concentrator (Code 33950) |
| Classification | Stationary Oxygen Concentrator |
| FDA Status | Class II Medical Device — Prescription (Rx) Required |
| Flow Range | 0.5–5.0 LPM |
| Purity Monitor | Oxygen Purity Indicator (OPI) |
| Alarms | Low flow-rate, low/high pressure, power failure — with manual reset button |
| Weight | 37 lbs |
| Mobility | Top carry handle, four smooth-rolling casters |
| Packaging | 1 unit per case |
Clinical Selection Note: Equipment must be selected according to prescribed flow rate and delivery requirements. Always cross-reference device capabilities with your physician's prescription.
Who Is the Resp-O2 5L Typically Prescribed For?
The Resp-O2 5L is well suited to standard continuous-flow oxygen prescriptions delivered via nasal cannula in home use and a wide range of medical settings, including clinics, long-term care, and rehab facilities. Its quiet operation and easy mobility make it a practical choice for patients or facilities that move the unit between rooms regularly. As with any oxygen device, the appropriate flow rate should be determined by your physician based on your specific prescription.
Adding the Resp-O2 5L to the EnhDme-Pro catalog rounds out our Dynarex lineup alongside the Resp-O2 portable pulse-dose concentrator for patients who need both home stationary and ambulatory oxygen coverage.

Frequently Asked Questions
What safety alarms does the Resp-O2 5L include?
The unit includes audible and visual alarms for low flow-rate, low/high pressure, and power failure conditions, along with a manual reset button to help ensure uninterrupted oxygen delivery.
How is oxygen purity monitored on this unit?
The Resp-O2 5L includes an oxygen purity indicator (OPI) that monitors output concentration as part of its standard control panel.
Is the Resp-O2 5L easy to move between rooms?
Yes. At 37 lbs, the unit is designed for easy transport with an accessible top handle and four smooth-rolling casters.
