The Spiritum 1.0 ventilator contains the following parts on three mounting plates:
- a plate with the connections for the breathing mask,
- the unit for mixing air and oxygen,
- the electronics that control the unit.

The three mounting plates form the main housing part of the Spiritum Do-It-Yourself system and can be built one by one. The console and the data logger are located in a separate unit that can be connected to the main housing.
In summary, the overall design of the Spiritum 1.0 ventilator can be divided into 4 sections: