Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator
Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator

Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator

Brand/Manufacturer: DEVILBISS
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  • Prescription required
  • Made in USA

Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator is designed with enhanced quality, durability, performance and simplicity in mind. This robust oxygen concentrator offers just the right balance of cool and quiet. The simplified, two-piece cabinet design provides 15% typical sound quality improvement and an improved cooling process. Coupled with proven, patented DeVilbiss Turn-Down Technology, it minimizes wear on internal components and increases the life expectancy of the unit. The concentrator is easy to assemble and disassemble and requires no maintenance for two years.

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Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator

Item #DescPkgRewardPrice 
525DS-Q 24.5"H x 13.5"W x 12"D Each $37.45

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Devilbiss Five Liter Oxygen Concentrator

Product Highlights:

  • Exclusive DeVilbiss OSD (Oxygen Sensing Device)increases accuracy and reliability for longer service intervals
  • Readily accessible patient controls and protected cannula fitting
  • Noticeably quiet operation
  • Easy to assemble and disassemble two-piece cabinet for ease of maintenance
  • Convenient top and side handles for easy transport
  • Recessed humidifier nook prevents damage
  • Lockable flow meter
  • Accommodates up to a 50-foot cannula (15.3 meters)
  • Interfaces with DeVilbiss Smart Track Concentrator Management System that:
    - Inputs patient data and downloads critical equipment information
    - Performs in-depth concentrator check
  • Robust design for improved durability:
    - Proven rotary valve design
    - Proprietary sieve mixture, fill process, and assembly
    - Unit tested in high temperature and high humidity for extended periods of time
    - Exceptional compressor durability
  • Intake filter features a translucent back to quickly determine if the filter is dirty
  • Made in the USA and imported parts
  • Click Here for Instruction Guide
  • Click Here for Service and Maintenance Log 

Important Parts:

Devilbiss Ultra Quiet Five Liter Compact Oxygen Concentrator1. Operating instructions
2. Green Power light
3. Power switch
4. Flow meter knob
5. Flow meter
6. Circuit breaker
7. Oxygen outlet
8. Normal Oxygen (green) light
9. Low Oxygen (yellow) light
10. Red Service Required light
11. Handgrip
12. Exhaust
13. Power cord and/or IEC power connector
14. Line cord strap
15. Air filter

Intended Use:

DeVilbiss 5 Liter Oxygen Concentrator is used to provide supplemental low flow oxygen therapy for those patients who are suffering from cardiovascular disease, COPD and lung disorders. It is used in home type environments, homes, patient care facilities, nursing homes, etc.

How Does DeVilbiss Oxygen Concentrator Works?

Oxygen concentrators are the most efficient, reliable and convenient source of supplemental oxygen available. It is electrically operated. The oxygen concentrator separates oxygen from room air which allows high-purity supplemental oxygen to be delivered to the patient through the oxygen outlet. Even though the concentrator filters the oxygen in a room, it will affect the normal amount of oxygen in the room.

More On Devilbiss 5 Liter Oxygen Concentrator

Patented DeVilbiss Turn-Down Technology:

  • Automatically turns down its flow cycle below 2-1/2 lpm, resulting in a 35% reduction in system pressure to reduce stress on compressor bearings and internal fittings
  • Energy-efficient design reduces power consumption by 15% or more compared with competitive designs to save patients an average of $100 in electricity costs annually
  • Minimizes wear on internal components thereby extending the life of concentrator

Operating Your DeVilbiss Oxygen Concentrator:

  1. Press the power switch to the “On” position. When the unit is turned “On,” all four lights (Power, Service Required, Low Oxygen, and Normal Oxygen) on the front panel will illuminate briefly and audible signal will briefly alarm. After a few seconds, only the Power and Normal Oxygen lights will remain lit.
  2. Check the flow meter to make sure that the flow meter ball is centered on the line next to the prescribed number of your flow rate. If the flow meter knob is turned clockwise, the flow decreases (and eventually will shut off the oxygen flow). If the knob is turned counterclockwise, the flow increases.
  3. DeVilbiss concentrator is now ready for use, properly position the cannula or mask. Allow 20 minutes for oxygen concentrator to reach stated performance.

Safety Features:

  • Alarms do not require a battery - reducing service and maintenance. Alarms indicate:
    - Power failure (capacitor powered)
    - High/low pressure
    - Low oxygen
    - Service required
  • Pressure-compensated flow meter to ensure accurate flow display
  • Pressure-relief valve and thermal protection on the compressor
  • Flame-retardant cabinet
  • Double insulated unit; two-prong plug

Cleaning And Disinfecting:

  1. Dispose of all accessory components that are not suitable for reuse, i.e., particularly the oxygen tubing, the nasal cannula/mask, oxygen outlet connector and humidifier bottle.
  2. Concentrator must be disconnected from the power supply for this step. Open the concentrator and remove all dust deposits inside the cabinet with an appropriate vacuum cleaner.
  3. Clean and disinfect all parts of the cabinet inside and outside and the power cord with a suitable disinfecting agent, e.g., Aldahol, Cidex OPA or Peract.
  4. Check the cord, the plug on the back of the device, the power switch, the fuse holder and the indicator light for possible damage.
  5. Replace all damaged or worn components.
  6. Replace the cabinet air filter on the back of the device.
  7. Check the oxygen concentration. If the device is within specifications, the extended life intake bacteria filter does not need to be replaced between patients.


  • For your safety, the oxygen concentrator must be used according to the prescription determined by your physician
  • Equipment not suitable for use in the presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide
  • This device contains electrical and/or electronic equipment
  • Follow local governing ordinances and recycling plans regarding disposal of device components
  • Installation of 515LF-607 low output flow meter package will cause the low flow alarm to not work




Outlet Pressure

8.5 PSIG (58.6 KPa)

Oxygen Purity

93% at 1 to 5 lpm (+/- 3%)

Power Consumption

310 Watts average
(275 Watts @ 2.5lpm and below)

Product Dimensions

24.5”H x 13.5”W x 12”D
(62.2cm x 34.2cm x 30.4cm)

Product Weight

36lbs (16.3kg)


Audible and visual High/low pressure, low flow, low oxygen, power fail, Oxygen Sensing Device

Sound Level

48 dbA

Pressure Relief Valve

40 psig±5psig (276 kPa±34.5 kPa)

Electrical Rating

115V, 60Hz, 3.3amp

Storage Conditions

-40°C to 70°C, humidity range of 10% to 100%, including condensation

Delivery Rate (Lower delivery rates available for low flow applications)

0.5lpm to 5lpm

Maximum Recommended Flow (nominal outlet pressures of zero and 7kPa)


Operating Voltage Range

97-127V, 60Hz

Oxygen Percentage

1-5 lpm=93%±3%


3 Year Warranty

Customer Reviews

Questions & Answers


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My unit does not operate. Power light is off when the power switch is “On.” Audible alert is pulsing and Service Required light is flashing. What should I do?
John - 3/25/2017 8:21:55 AM
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You can try one of the following: 
1. Check power cord connection at the wall outlet. On 230 volt units, also check the mains connection on the back of the unit. 
2. Check your home circuit breaker and reset if necessary. Use a different wall outlet if the situation occurs again. 
 3. Press the concentrator circuit breaker reset button located below the power switch. Use a different wall outlet if the situation occurs again.
Customer Care - 3/27/2017 1:09:32 AM
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Where should I set up the concentrator?
Liam - 3/25/2017 8:21:31 AM
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To set up your Devilbiss Ultra Quiet 5 Liter Oxygen Concentrator: 
1. Position your unit near an electrical outlet in the room where you spend most of your time. 
2. Position your unit at least 6 inches (16 cm) from walls, draperies, or any other objects that might prevent the proper flow of air in and out of your oxygen concentrator. The oxygen concentrator should be located so as to avoid pollutants or fumes.
Customer Care - 3/27/2017 1:07:06 AM
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How should I clean the air filter?
Gipsy - 3/25/2017 8:21:04 AM
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The air filter and connector should be cleaned at least once a week. To clean, follow these steps: 
1. Remove the air filter, located on the back of the unit. Remove the oxygen outlet connector (if used). 
2. Wash in a solution of warm water and dishwashing detergent 
3. Rinse thoroughly with warm tap water and towel dry. The filter should be completely dry before reinstalling.
Customer Care - 3/27/2017 1:05:36 AM
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What is Devilbiss OSD?
Mayra - 3/25/2017 8:20:35 AM
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The OSD (Oxygen Sensing Device) is a device within Devilbiss Ultra Quiet 5 Liter Oxygen Concentrator that monitors the oxygen produced by the unit. When the unit is turned “On,” all four lights (Power, Service Required, Low Oxygen, and Normal Oxygen) on the front panel will illuminate briefly. After a few seconds, only the Power and Normal Oxygen lights will remain lit. The OSD lights on the front panel are defined as follows: 
  • Green Normal Oxygen light–acceptable oxygen level. 
  • Yellow Low Oxygen light– below an acceptable oxygen level. 
If the oxygen purity falls below the acceptable level, the green Normal Oxygen light will shut off and the yellow Low Oxygen light will illuminate.
Customer Care - 3/27/2017 12:21:06 AM
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