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This report outlines developing a mechanism for a relatively low in price, portable, and mechanical ventilator prototype designed to bridge the gap in ventilator access brought about the COVID-19 pandemic. The key goal is to create a portable and easy to use device which will be capable of providing constant and effective respiratory support in areas having limited resources. The ventilator uses the Oscillating Cylinder Mechanism (OCM), which makes the ventilation smoothly and continuously. This eliminates the need for the user to put maximum effort and the patient benefits. Different ideas about designs were being put forward, concentrating on the portability, functionality, reliability, safety, and effectiveness. The OCM was selected because of its ventilation parameter adjustment ability to accommodate patient-specific needs, thereby functioning in a variety of clinical settings. Although upfront complexity and cost are developed, long-term perks such as lower user fatigue and maintenance expenses compensate for the financial investment. The end design will help in the emergency medical care especially in demand emergency situations, in ambulances, and in intensive care.