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Respironics EverFlo Q Ultra-quiet Stationary Oxygen Concentrator

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Respironics EverFlo Q Ultra-quiet Stationary Oxygen Concentrator is designed to significantly reduce the noise complaints with a sound level of 40 decibels. EverFlo Q Oxygen Concentrator is intended to provide supplemental oxygen up to 5 lpm to persons requiring oxygen therapy. EverFlo Q has just two filters providing the user to spend less time and money on regular maintenance or repair calls. External filter can be changed in minutes without special skills or tools and the internal micro disk filter is simply checked during routine maintenance procedures. Easy-to-use EverFlo Q is attractive to patients as it produces less heat and requires less electricity to operate.

EverFlo Q Ultra Oxygen Concentrator Highlights

  • Quiet, Small Oxygen Concentrator
  • Ease-of-Use In a Stationary Concentrator
  • 5 LPM Oxygen Output

EverFlo Q Oxygen Concentrators Features

  • Compact design looks less like a medical machine: Ergonomic design takes up less space and does not draw as much attention
  • Lower power consumption makes EverFlo patient-friendly: The system uses less electricity and produces less heat
  • Right Fit series focuses on patient needs: EverFlo Q is part of the Right Fit, a complete portfolio of oxygen products and programs inspired by patients and built for business
  • Low maintenance for reduced service costs: No homecare provider filter change for two years and patients do not ever have to change filters
  • Oxygen purity indicator option for increased security: EverFlo Q is available with or without OPI (Oxygen Percentage Indicator), which ultrasonically measures oxygen output as a purity indication
  • Ultra quiet operation reduces noise complaints: EverFlo Q has only a 40 decibel sound level, which significantly increases patient satisfaction and is attractive to both physicians and patients
  • Humidifier Bottle Platform for extra flexibility: The platform is designed to be compatible with all bottle styles and features an easy-to-use Velcro closure
  • Lightweight for easy transport: EverFlo Q weighs in at only 31 pounds, reducing shipping and storage costs and risk of injury
  • EverFlo is significantly lighter, quieter, and more energy efficient than its predecessor: These improvements include reductions of weight (40%), energy usage (24%), and packaging (15%)
  • EverFlo is compact, has a streamlined and integrated handle
  • Recessed flow meter reduces accidental breakage
  • Durable metal cannula is less likely to break
  • Internal tubing storage keeps tubing conveniently available for use
  • Interface panel with on/off switch and alarm indicators
  • Eight-hour battery life with 1050 ml/min oxygen capacity
  • FAA approved for air travel and in-flight use


Everflo User Manual

Parts of EverFlo Q:

Parts of EverFlo Q:

Alarm and Indicators:

Alarm and Indicators:

What to buy with Q Ultra Oxygen Concentrator?

How To Operate EverFlo Q Ultra Compressor?

Operating Instructions:

  1. Select a location that allows the Respironics Concentrator to draw in room air without being restricted. Make sure that the device is at least 15 to 30 cm away from walls, furniture, and especially curtains that could impede adequate airflow to the device. Do not place the device near any heat source.
  2. After reading instructions, plug the power cord into an electrical outlet.
  3. Do either Step A or Step B below:
    A. If you are not using a humidifier, connect your nasal cannula to the Oxygen Outlet Port, as shown below.
    Operating Instructions
    B. If you are using a humidifier, follow the steps below:
    1. Open the filter door on the back of the device
      Operating Instructions
    2. Remove the humidifier connector tube from the back of the filter door and replace the filter door.
    3. Fill your humidifier bottle according to the manufacturer instructions.
    4. Mount the filled humidifier on the top of the EverFlo Q device inside the velcro strap.
      Operating Instructions
    5. Tighten the velcro strap around the bottle and secure it so it is held firmly in place.
    6. Connect the humidifier connector tube (that you retrieved from the filter door)to the Oxygen Outlet Port.
    7. Connect the other end of the humidifier connector tube to the top of the humidifier with the elbow in the tubing facing the front.
      Operating Instructions
    8. Connect your cannula to the humidifier bottle according to the humidifier bottle manufacturer specifications.
  4. Press the power switch to the On [I] position. Initially, all the LEDs will illuminate and the audible alert will beep for a few seconds. After that time, only the green LED should remain lit. You can began breathing from the device immediately even though it typically takes 10 minutes to reach oxygen purity specifications.
    Operating Instructions
  5. Adjust the flow to the prescribed setting by turning the knob on the top of the flow meter until the ball is centered on the line marking the specific flow rate.
  6. Be sure oxygen is flowing through the cannula.
  7. Put on the cannula as directed by your home care provider.
  8. When you are not using the oxygen concentrator, press the power switch to the Off [O] position.

How To Clean Oxygen Concentrator?

  • Periodically, use a damp cloth to wipe down the exterior case of the Stationary EverFlo Q device.
  • If you use medical disinfectants, be sure to follow the manufacturer instructions.
  • It is important to unplug the device before you perform any cleaning.
  • Excess moisture may impair the proper operation of the device.

Q Ultra Everflo Specifications



Sound Level

40dBA typical

Input Voltage

120 VAC +/- 10%

Input Frequency


Average Power Consumption

350 watts

Oxygen Concentration (at 5lpm)

93% (+/- 3%)

Liter Flow

0.5 to 5 liters per minute


31lb (14kg)


23"H x 15"W x 9.5"D (584mm x 381mm x 241mm)

OPI (Oxygen Percentage Indicator) Alarm Levels

Low oxygen: 82%, very low oxygen: 70%

Operating Temperature

55°F to 90°F (12°C to 32°C)

Storage/Transport Humidity

-30°F to 160°F (-34°C to 71°C) up to 95% relative humidity

Operating Humidity

Up to 95% relative humidity

Outlet Pressure


Operating Altitude

0 to 7,500 ft (0m to 2,286m)


Respironics Q Ultra Warranty

3 year limited warranty, with 2 years extended warranty

Respironics Oxygen Concentrator Reviews


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