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Compact 525 Oxygen Concentrator

Manufacturing products that are of the highest possible quality is key to DeVilbiss Healthcare. The latest Compact 525 oxygen concentrator is designed and built to meet the high demands of patients and cost challenges faced by service providers.


In commitment to our quality aims, we have invested in new manufacturing processes and innovative production techniques. The new black, Compact 525 is now manufactured at our dedicated oxygen therapy facility in Pennsylvania, USA, which has given us the control to deliver a reliable, high quality, more eco-friendly oxygen concentrator.


Delivering up to 5 litres per minute with high oxygen concentration across all flow rates and adopting the latest developments in the reduction of sound and power consumption, the latest Compact 525 increases patient comfort and lowers operating costs.

Compact 525 oxygen concentrator black humidifier
  • Improved sound level reduction –our quietest concentrator yet
  • Front label with easy to read pictograms
  • New black colour
  • 2 part case design
  • 3 years warranty as standard (an optional extended 2 year warranty package available)
  • OSD® Sensor for continuously monitoring oxygen levels
  • Visual and audible alarms for low oxygen levels, power failure, pressure drop and service required
  • Oxygen outlet incorporating a fire protection adapter
  • Intelligent power management system utilises Turn-Down Technology providing less power consumption below flow rates of 2.5 l/min
  • Reduced packaging: reducing materials and waste, as well as transportation costs and emissions – without compromising product protection
  • Dimensions (H x W x D): 62.2 cm x 34.02 cm x 30.4 cm
  • Weight: 16.3kg
  • Sound level : 40 dbA (50Hz)
  • Flowrate: 0.5 – 5 l / min
  • Oxygen concentration : 93% ± 3% (0.5 – 5l / min) 
  • Electrical requirements : 230V / 50 Hz   
  • Power consumption : approx 290 watt at 2 l / min and approx. 312 watt at 5 l / min
  • How does an oxygen concentrator work?
    An oxygen concentrator is an electrical device that draws in room air, separates the oxygen from the other gases and delivers the oxygen at high concentrations to the patient. Room air is drawn in via a small electric compressor through a series of filters. The compressed air passes through two molecular sieve beds, which removes the nitrogen. Waste gas is harmlessly returned to the air and the process repeated. The oxygen is then delivered via nasal cannula or a facemask to the patient. An uninterrupted supply of oxygen is available at the touch of a button and can be used 24 hours a day.
  • What percentage of oxygen does the 525 concentrator deliver?
    Over the range of 1—5 Litres per min the 525 provides 93% oxygen +/- 3%. This purity has been tested to be clinically acceptable for long-term oxygen therapy.
  • How often should I clean filters and other accessories?
    The air filter and oxygen outlet connector should be removed and washed once a week. Use warm soapy water, rinse thoroughly and air dry. The bubble humidifier should be washed daily using a mild detergent and hot water.
  • Can I use a low flow meter with the 525 concentrator?
    Yes, please contact our technical service department for further information.
  • What is the best way to transport a 525 concentrator in the car?
    It is not recommended to put the 525 in a boot of the car as this involves tipping the unit. The best place is on a back seat secured with the seat belt or wedged between the front and back seats.
  • Can I use my 525 oxygen concentrator overseas?
    First you must check the voltage of the unit you have and the voltage of the country that you are visiting. DeVilbiss manufacture two units 525DS for 110V countries and 525KS for 240V countries. If you need anymore advice please contact our technical service department
  • What is Turn Down technology?
    The 525 concentrator incorporates Turn Down technology. The PC board constantly monitors the flow rate and will decrease the cycle time whenever the flow rate is less than 2.5 LPM. Therefore it “turns down” the cycle based on the lower oxygen demand. As a result the unit runs cooler and less power is consumed. This results in potential energy savings for the patient and extended life of the unit.
  • How can I tell if the oxygen purity is good?
    As long as the green O2 light is illuminated, the 525 is delivering the correct purity of oxygen. If the purity drops below a certain level, the yellow O2 light will be illuminated. You may continue to use the 525 even though the yellow light is on, but you should quickly find an alternative oxygen source. If the purity continues to drop, the red service light will illuminate and you should immediately find an alternative oxygen source.

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