An emergency ventilator has a simpler construction than a traditional ventilator. It has the same necessary features but is not as high-tech as a traditional ventilator. The emergency ventilator is made of simpler components, and design and size are not considered important for emergency ventilators. Currently the ventilation mode offered and implemented is mandatory only and volume control mode with regulation of FiO2, Vt, I:E ratio and PEEP. Efforts are underway to allow for spontaneous breathing and pressure regulated modes via downloadable software modifications.