Thomas compressors are used to power missing-critical components such as medical ventilators, oxygen contractors and other respiratory therapy devices for patients who need support to breathe. Our solutions for respiratory therapy device manufactures provide a clean, reliable air stream with low power consumption, low sound levels and compact, lightweight designs. Read on to learn about how Thomas compressors are used in Respiratory Therapy devices, and how to select the right compressor for your application.


Compressors for Oxygen Concentrators and Ventilators


Respiratory therapy devices, such as an oxygen concentrators, use an air compressor and sieve technology to filter the oxygen (21% concentration) out of atmospheric air to concentrations upwards of 95%. The auxiliary air is supplied to patients in the form of oxygen concentrators, which can be stationary, portable, or transportable depending on the patient’s condition and location.

Ventilators are another form of respiratory therapy that may use an oxygen concentrator.

Thomas WOB-L® pumps are often selected for respiratory therapy devices as they meet the high flow and high pressure requirements of the application, while delivering ultimate reliability. Below you can find the most suitable series recommended for the oxygen tank size and flow it has to provide to the patient.


Types of Respiratory Therapy Devices


  • Concentrators. Types of Oxygen Concentrators:
    • Portable- backpack or hip bag
    • Transportable – luggage, pull behind, rolling
    • Stationary – traditional concentrators, larger immobile units
  • Ventilators
  • High flow oxygen therapy- mask-less respiratory therapy that delivers warm, humid air to patients in a mask-free system


Key Pump Functions and Requirements


When specifying pump flow for oxygen concentrators and ventilators, the rule of thumb is that pump flow should equal five times the requirement for the device.

In addition to performance requirements, there are several other factors that should be considered depending on the type of equipment.

Compressors in respiratory devices must offer:

  • High reliability and long life
  • Consistent airflow to maintain performance
  • Compact size
  • Low noise – consider the device is often at the patient’s bedside, or in the same room whether used in the hospital or at home, work and other locations
  • Low weight and power consumption are also deciding factors for portable and transportable devices, as they must be moved around with the patient and rely on battery power


Selecting the right compressors for Oxygen Concentrators and Other Respiratory Devices


Thomas compressors combine the efficiencies and operating characteristics of our innovative WOB-L® technology with lightweight chassis materials. Our patented WOB-L® piston compressors are oil-less, making them the best choice for medical applications that require contaminant-free air, compact and lightweight designs, and high performance piston seals.




With Thomas advanced technologies and customizable compressors, you will be able to choose the right product to incorporate into your application according to YOUR requirements. Thomas Engineering can customize any compressor features like electrical connections to link with any system requirements, foot taps and spacing or isolation mount for ease of mounting, and various head port types and configurations for ease of hookup.

All-in-one devices delivering high flow, high pressure capability, and long life

Catalog | Compressors for Ventilators, Stationary and Portable Oxygen Concentrators

Thomas compressors are used to power mission-critical medical components such as medical ventilators (respirators) for patients who need support to breathe.

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Compressors for Ventilators, Stationary and Portable Oxygen Concentrators