The OxVent



Low cost, highly efficient mechanical ventilator

The OxVent was created to address the urgent need for ventilators during the 2020 Coronavirus pandemic. It provides the performance of an emergency ventilator at a fraction of the cost of a complex product, while complying with international quality and regulatory standards for medical devices.

The OxVent is compatible with most standard electrical supply voltages. For ease of use, it requires an oil-free compressed air supply, which does not need to be Medical Air, and has built-in backup power in case of power outages.

The OxVent has been designed to make highly efficient use of oxygen, without employing CO2 absorption. This is particularly valuable where there is a limited supply of oxygen. The ventilator supports most adult patients with an appropriate range of parameters, such as tidal volumes and respiration rates, IE ratio, and in an emergency, offers a default selection immediately after switch-on. Alongside volume settings, the assist control ventilation mode is critical for patient recovery.

The ventilator has audible and visible alert alarms and an easy-to-use interface requiring minimal training.

1. Power Connector

Power connector that works with any supply voltage

2. Air Supply

Standard compressed air supply (4bar) for ease of operation

3. Battery Back-up

Battery back-up to maintain one hour continuous ventilation during power outage

4. Oxygen Efficiency

Designed to use oxygen efficiently in case of supply shortages during the pandemic

5. Regulatory Standards

Designed to meet the strict regulatory standards of the UK MHRA and currently being assessed to ISO 13485.  Further international certifications are in preparation.

6. Control

Mandatory control and Assist Control Ventilation modes critical for patient recovery

7. Settings

Wide choice of settings suitable for a wide range of lung volumes and compliances

8. Alarms

Audible and visible alarms quickly alert clinicians

9. Minimal Training Requirement 

Intuitive user interface requiring minimal user training.

Technical Specifications

Ventilation Modes

User Settings


System Requirements

Ventilation modes

The OxVent allows selection between 2 operating modes – Mandatory Volume Controlled Ventilation (VCV) and Assisted Control Ventilation (ACV).

VCV: In this mode, a set volume is delivered to the patient according to the parameters selected by the clinician. The pressure limit ensures that peak pressures do not exceed appropriate levels for each patient. This mode is for patients who have no spontaneous respiration and are unable to make any effort at independent breathing.

ACV: This setting supports a patient’s attempts to breathe spontaneously. The ventilator senses when a patient initiates a breath and assists their efforts by delivering the set breath volume. If a patient fails to take a breath, the ventilator will deliver the full breath to ensure sufficient oxygen inhalation per minute. ACV provides increased patient comfort by triggering breaths as needed and supports weaning patients off ventilation as levels of sedation are reduced.

User Settings

Menu Item Limits
Mode VCV (fixed Resp Rate)
ACV (patient triggered)
VT 250 to 600 ml
Resp Rate 10 to 30 min -1
Plimit 15 to 45 cmH2O
Ppeak Alarms Over Plimit
FiO2 Alarms under 35%
PEEP 5 to 20 cmH2O
I:E (VCV Only) 2:1 to 1:3
T insp (ACV Only) 1.0 to 3.0 seconds
Ptrig (ACV Only) 1 to 10 cmH2O


The system provides audible and visual alarms to alert clinicians if certain alarm conditions are met. These checks include:

  • Mains power supply cut-off
  • No pressure cycling ​
  • Inspiratory volume low
  • Inspiratory volume high
  • PEEP pressure low
  • PEEP pressure high
  • Airway pressure high
  • Oxygen concentration low

System requirements

Power Supply: 110-240V, 50-60Hz.

Hospital Compressed Air: 4 Bar wall compressed air supply.

Environmental Conditions: 5 to 35°C, 30% to 70% relative humidity.

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