Table 5.

Abbreviations for oxygen devices for use on bedside charts

Add flow in L/min for example, N 2 L/min=nasal oxygen at 2 l/min. V28 4 l/min=28% Venturi mask at 4 l/min. RM 15 l/min=reservoir mask at 15 l/min.
A, air
N, nasal cannulae	HFN, high flow nasal cannulae
V24, Venturi mask 24%	V28, Venturi mask 28%	V35, Venturi mask 35%
V40, Venturi mask 40%	V60, Venturi mask 60%
H28, humidified O2 28%	H40, humidified O2 40%	H60, humidified O2 60%
RM, reservoir mask	SM, simple face mask	TM, tracheostomy mask
CPAP, continuous positive airway pressure	NIV, non-invasive ventilation