Dynarex 5L Stationary Oxygen Concentrator

Dynarex | SKU:

33950

Dynarex 5L Stationary Oxygen Concentrator

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$620.00

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The Dynarex 5L Stationary Oxygen Concentrator (model 33950) is a continuous-flow home oxygen concentrator that delivers 0.5 to 5 liters per minute with an oxygen concentration the manufacturer lists as 90 to 96%. It is built for long-term oxygen therapy at home and in clinical settings, including patients prescribed supplemental oxygen for COPD, pulmonary fibrosis, or other chronic respiratory conditions.

The unit runs at a manufacturer-stated noise level of 40 dBA, among the quieter ratings in the 5 LPM stationary oxygen concentrator category. It weighs 37 lb, with four rolling casters and a top handle for moving room to room. Audible and visual alarms cover power failure, low and high pressure, low oxygen concentration, and low flow rate, and the built-in Oxygen Percentage Indicator (OPI) signals when purity drops below the therapeutic range.

Operates on AC 120V, 60Hz from a standard US wall outlet. Federal law requires a prescription from a licensed physician before this device can be sold or used. The Dynarex 5L is FSA/HSA eligible and backed by Dynarex's 3-year limited manufacturer warranty for the original purchaser. Dream Now, Pay Later financing is available at checkout.

Dynarex 5 Liter Concentrator User Manual

Returns Policy

Plug the Dynarex 33950 directly into a grounded 110V wall outlet. Avoid extension cords or surge strips, which can overheat under continuous medical-device loads.
Leave 6 to 12 inches of clearance around the unit so the cooling vents are not blocked by walls, curtains, or furniture.
Do not operate the concentrator near open flames, cigarettes, candles, gas stoves, or aerosol sprays. Oxygen-enriched air increases fire risk significantly.
Clean the air intake filter weekly with mild soap and water, and replace it on the schedule listed in the Dynarex user manual to keep oxygen purity stable.
If your prescription includes humidified oxygen, use distilled water only in the humidifier bottle. Compatible accessories are in the humidifier bottles collection.
Check the nasal cannula and supply tubing weekly for kinks, cracks, or leaks. Replace damaged tubing to keep delivered flow accurate.
When an alarm sounds, do not ignore it. Check tubing for kinks first, confirm the filter is clean, and consult the manual for the specific alarm pattern.
If you depend on oxygen therapy full-time, keep a backup oxygen source on hand (a cylinder or a portable unit) in case of a power outage.
Schedule preventive servicing through an authorized Dynarex warranty service center every 12 to 18 months, even if the unit appears to run normally.
The 33950 is a stationary unit and is not intended for air travel. If you need oxygen on flights, browse Sleeplay's oxygen therapy collection for portable concentrators.
Wipe the exterior cabinet weekly with a damp cloth. Do not spray cleaners or water directly into the vents or the oxygen outlet.

The Dynarex 5L Stationary Oxygen Concentrator (model 33950) is a continuous-flow home oxygen concentrator that delivers 0.5 to 5 liters per minute with an oxygen concentration the manufacturer lists as 90 to 96%. It is built for long-term oxygen therapy at home and in clinical settings, including patients prescribed supplemental oxygen for COPD, pulmonary fibrosis, or other chronic respiratory conditions.

The unit runs at a manufacturer-stated noise level of 40 dBA, among the quieter ratings in the 5 LPM stationary oxygen concentrator category. It weighs 37 lb, with four rolling casters and a top handle for moving room to room. Audible and visual alarms cover power failure, low and high pressure, low oxygen concentration, and low flow rate, and the built-in Oxygen Percentage Indicator (OPI) signals when purity drops below the therapeutic range.

Operates on AC 120V, 60Hz from a standard US wall outlet. Federal law requires a prescription from a licensed physician before this device can be sold or used. The Dynarex 5L is FSA/HSA eligible and backed by Dynarex's 3-year limited manufacturer warranty for the original purchaser. Dream Now, Pay Later financing is available at checkout.

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Dynarex 5L Stationary Oxygen Concentrator

$620.00

Product Features

Replacement Parts

Reviews

FAQs

Product Features

The Dynarex 33950 delivers continuous oxygen at any setting from 0.5 to 5 liters per minute, with the manufacturer listing oxygen purity between 90% and 96% across the full range. This supports prescribed home oxygen therapy for adults with chronic respiratory conditions such as COPD or pulmonary fibrosis.

Dynarex lists the noise output at approximately 40 decibels, putting the 5L Resp-O2 among the quieter 5 LPM stationary units. The lower sound level makes overnight use and shared-room therapy more comfortable for the patient and the household.

Dynarex backs the 5L concentrator with a 3-year limited warranty, for the original purchaser. Coverage runs through an authorized Dynarex warranty service center after an RMA is issued.

Dynarex 5L Stationary Oxygen Concentrator

Audible and Visual Alarms

The 33950 includes audible-and-visual alarms for power failure, low and high pressure, low oxygen concentration, and low flow rate. Dynarex lists these as the core safety signals on the unit, designed to flag operating issues the moment they occur so therapy can be checked or paused.

Built-In Oxygen Percentage Indicator (OPI)

The integrated OPI tracks oxygen purity at the output and alerts when concentration falls outside the therapeutic range. This is the same indicator referenced on the Dynarex Resp-O2 product page and visible from the front control panel.

Continuous-Flow Operation for Daily Use

Designed for 24/7 stationary oxygen therapy at home or in long-term care. The continuous-flow design delivers a steady prescribed rate without pulsing, which is what most physicians order for sleep, rest, and high-need patients.

37 lb Cabinet with Casters and Top Handle

Dynarex specifies a 37-pound weight with four rolling casters and a top grip handle, so it moves easily from room to room without dominating the space.

Humidifier Bottle Connector Included

Ships with the humidifier bottle connector so a humidifier can be added when the prescribing clinician recommends humidified oxygen. The humidifier bottle itself is sold separately and is commonly added for higher flow settings or dry environments.

Standard US 120V Power

Plugs directly into a grounded US 120V wall outlet. No adapter is needed for typical home use. Avoid extension cords or surge strips, as the manufacturer manual notes continuous-use medical devices should be on a dedicated grounded outlet.

Operating Altitude up to 7,500 ft

Dynarex lists standard operating altitude up to 7,500 feet without performance degradation, with an optional configuration extending up to 13,123 feet for users at higher elevation. Confirm altitude requirements with your prescribing clinician if you live above the standard range.

Manual Reset Circuit Protection

A manual reset button acts as a built-in circuit breaker. After a power surge or overload, the unit can be reset without service, so therapy resumes with a single press rather than waiting for a service visit.

HCPCS Code E1390 for Reimbursement

The 33950 is classified under HCPCS code E1390, which is the standard code for stationary oxygen concentrators used in US insurance and Medicare documentation. Confirm coverage with the patient's plan and DME provider before purchase.

Federal Prescription Required

Federal law restricts this device to sale by or on the order of a physician. A valid prescription that specifies flow rate and use schedule is required before Sleeplay can ship the unit.

FAQs

Yes. Federal law restricts this device to sale by or on the order of a physician. Sleeplay must verify a valid prescription before the unit ships. The prescription should specify your flow rate (LPM) and the use schedule ordered by your clinician.

No. The Dynarex 33950 is a stationary home oxygen concentrator, not a portable oxygen concentrator (POC). FAA approval applies only to specific POC models. For air travel, look for an FAA-approved portable unit in Sleeplay's oxygen therapy collection.

The manufacturer lists the noise level at approximately 40 decibels, which is comparable to a quiet refrigerator hum. This puts the 33950 among the quieter stationary 5 LPM units, making it suitable for bedroom or shared-room use.

Yes. The 33950 is designed for continuous use. Stationary concentrators in this class are built to run around the clock when properly ventilated, plugged into a grounded outlet, and maintained on the manufacturer's recommended filter schedule.

Dynarex lists oxygen concentration at 90% to 96% (commonly expressed as 93% ± 3%) across the 0.5 to 5 LPM range. The built-in Oxygen Percentage Indicator (OPI) signals if purity drops below the therapeutic range during operation.

5 LPM is the upper end of standard home oxygen therapy and is typically prescribed for higher-demand patients or during exertion. Lower settings (1 to 3 LPM) are more common for resting and sleep prescriptions. Your physician will determine the correct flow rate for your condition.

The 33950 ships with the stationary concentrator unit, the humidifier bottle connector, and the user manual. A humidifier bottle, nasal cannula, and oxygen tubing are typically prescribed separately based on the user's therapy plan.

No. The unit includes the humidifier bottle connector but the bottle itself is sold separately. A humidifier is generally added for higher flow rates or dry climates, on the prescriber's recommendation. Compatible bottles are available in the humidifier bottles collection.

Dynarex provides a 3-year limited manufacturer warranty or 8,000 hours of use, whichever comes first, for the original purchaser. Warranty service is handled through an authorized Dynarex warranty service center with an RMA number issued in advance.

Yes. The Dynarex 33950 is FSA and HSA eligible at checkout when prescribed by a physician. Patients may also reference HCPCS code E1390 for insurance reimbursement of stationary oxygen concentrators.

Sleeplay hosts the official Dynarex 5L user manual in the product's user guides section on this page. The manual covers setup, daily operation, alarm troubleshooting, filter cleaning, and the full alarm list.

Bleed-in oxygen is sometimes prescribed alongside CPAP or BiPAP therapy. The Dynarex 33950 delivers continuous flow that can connect to a CPAP/BiPAP circuit through a bleed-in adapter. This setup must be specified by the prescribing physician, not added by the patient.

Per Dynarex, clean the cabinet filter about every 200 to 300 hours of use and replace the air intake filter about every 5,000 to 8,000 hours. Follow the schedule in the user manual.

No. It has no internal battery and needs wall power to run. The power-failure alarm will sound. Keep a backup oxygen source, such as a cylinder, and follow your provider's emergency plan.

Yes. The Resp-O2 33950 is the current version of the unit formerly numbered 10800.

Model	Dynarex Resp-O2 33950 (formerly 10800)
Manufacturer	Dynarex
Oxygen Flow Range	0.5 to 5 L/min
Oxygen Concentration	90 to 96% (93% ± 3%)
Outlet Pressure	6 to 10 PSI max
Sound Level	40 dBA (manufacturer-stated)
Weight	37 lb
Voltage	AC 120V, 60Hz
Rated Power	350 VA
Operating Altitude	Up to 7,500 ft standard (configurable up to 13,123 ft)
Alarms	Audible and visual: power failure, low/high pressure, low oxygen concentration (below 85%), low flow rate
Indicator	Built-in Oxygen Percentage Indicator (OPI)
Electrical Category	Class II, Type BF applied part
HCPCS Code	E1390
Warranty	Dynarex 3-year limited (original purchaser)
Included in Box	Dynarex 5L concentrator, humidifier bottle connector, user manual

Dynarex 5L Stationary Oxygen Concentrator

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Overview

Guide and Resources

Important Tips

What’s Included

Dynarex 5L Stationary Oxygen Concentrator

Product Features

Continuous Flow from 0.5 to 5 LPM

40 dBA Quiet Operation

3-Year Dynarex Manufacturer Warranty

Audible and Visual Alarms

Built-In Oxygen Percentage Indicator (OPI)

Continuous-Flow Operation for Daily Use

37 lb Cabinet with Casters and Top Handle

Humidifier Bottle Connector Included

Standard US 120V Power

Operating Altitude up to 7,500 ft

Manual Reset Circuit Protection

HCPCS Code E1390 for Reimbursement

Federal Prescription Required

FAQs

Do I need a prescription to buy the Dynarex 33950 5L oxygen concentrator?

Is the Dynarex 5L FAA-approved for use on airplanes?

How loud is the Dynarex 5L concentrator?

Can the Dynarex 5L run continuously 24/7?

What is the oxygen purity at each flow rate?

Is 5 liters per minute a lot of oxygen?

What is included in the box?

Does the Dynarex 5L include a humidifier bottle?

What is the warranty on the Dynarex 5L concentrator?

Is the Dynarex 5L oxygen concentrator FSA/HSA eligible?

Where can I find the Dynarex 5L user manual?

Can the Dynarex 5L be used with a CPAP or BiPAP machine?

How do I maintain the filters?

Does the Dynarex 5L work during a power outage?

Is the 33950 the same as the older model 10800?

Our Experts are here to help you.

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