Table 5.

Definitions of the SpO${}_2$ controller states

State	Upper FIO${}_2$ limit	PEEP
Base	FIO${}_{2\text{,base}}$ $+0.1$	PEEP${}_{\text{base}}$
Second	FIO${}_{2\text{,base}}$ $+0.2$	PEEP${}_{\text{base}}+2\text{mbar}$
Final	FIO${}_{2\text{,base}}$ $+0.3$	PEEP${}_{\text{base}}+4\text{mbar}$

Movement between states is sequential and non-reversible