A medical ventilator cart, for use in hospitals or other medical settings, stores and transports various components of a ventilator system, such as a Breath Delivery Unit, a display monitor, and a compressor. First and second platforms are suspended above a base of the cart and allow the various ventilator cart components to be separately and independently placed on and removed from the cart without the need to move or rearrange any of the other ventilator components. One version of the cart provides an additional compressor platform attached to the base for mounting a compressor below the first platform.