“we found pre-oxygenation with high-flow nasal oxygen to be easier for anaesthetists and more comfortable for patients than pre-oxygenation with a facemask, with no clinically relevant differences in end-tidal oxygen fraction” #anaesthesiology #anesthesia #anaesthesia #preoxygenation #HFNO https://associationofanaesthetists-publications.onlinelibrary.wiley.com/doi/10.1111/anae.15853