Intermittent obligatory ventilation, synchronized (SIMV) positive strain ventilation during which the affected person breathes spontaneously though the ventilator delivers a positive-stress breath at intervals which are predetermined but synchronized with the patient's respiration. Continual stream ventilators are necessary for both intermittent movement or a relentless, simple stream... https://ventilationinstallation78900.bloggip.com/37687153/ventilation-ductwork-can-be-fun-for-anyone