A medical ventilator (or simply ventilator in context) is a machine designed to provide mechanical ventilation by moving breathable air into and out of the lungs, to deliver breaths to a patient who is physically unable to breathe, or breathing insufficiently. It is a popular and portable ventilation support device, which is suitable for emergency vehicles application or patient transport. Its main work principle is utilizing a continuous gas flow source, then the ventilator provides smooth, reliable ventilatory support via a mask or endotracheal tube. It is widely used in emergency vehicles, and it can be applied to hospitals for emergency ventilation support and for patient transport. Furthermore, the ERS043 transport ventilator has a complete set of ventilation modes and alarms to assure the safety of the patient.

In modern clinical medicine, the ventilator, as an effective means to artificially replace the autonomous ventilation function, has been widely used in respiratory failure caused by various reasons, including anesthesia breathing management during major surgery, respiratory support treatment, and emergency resuscitation. It is a vital medical device that can prevent and treat respiratory failure, reduce complications, save and prolong patient life. This ambulance ventilator features with lightweight and compact size, which is ideal for taking along with vehicles in an emergency so paramedics don't have to compromise on therapy during transport.