Explore the different types of ventilator available, their uses, and how they support respiratory care in critical conditions. A ventilator helps to push air in and out of your lungs so your body can get the oxygen it needs. You may wear a fitted mask to help get oxygen from the ventilator into your lungs. A ventilator machine helps the patient breathe when they are unable to do so. It delivers air directly into the lungs, confirming an adequate amount of oxygenation. A ventilator is a type of breathing apparatus , a class of medical technology that provides 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.