What is a medical ventilator

A ventilator made by Ventilator Manufacturers is a part of medical technology that delivers mechanical ventilation by moving breathable air into and out of the lungs, to distribute breaths to a patient who is actually unable to respire, or breathing insufficiently. Ventilators are computerized microprocessor-controlled apparatuses, but patients can also be ventilated with a humble, hand-operated bag valve mask. Ventilators supplied by Ventilator Suppliers are primarily used in intensive-care medicine, home care, emergency medicine (as separate units), and anesthesiology (as a constituent of an anesthesia machine).
Ventilators are occasionally called "respirators", a term normally used for them in the 1950s (chiefly the "Bird respirator"). Though, modern medical terminology uses the word "respirator" to mention instead of a face-mask that defends wearers against hazardous airborne substances. In its humblest form, a contemporary positive pressure ventilator bought from Ventilator Dealers contains of a compressible air reservoir or turbine, air and oxygen supplies, a set of valves and tubes, and a throwaway or refillable "patient circuit". The air reservoir is pneumatically compressed several times a minute to distribute room air, or in most cases, an air/oxygen combination to the patient. If a turbine is used, the turbine thrusts air through the ventilator, with a stream valve adjusting pressure to meet patient-specific parameters. When overpressure is released, the patient will respire inertly due to the lungs' elasticity, the exhaled air being released typically through a one-way valve within the patient circuit named the patient manifold.