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. 2022 Jun 3;9:920549. doi: 10.3389/fmed.2022.920549

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Copyright © 2022 Nolasco, Manti, Leonardi, Vancheri and Spicuzza.

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Fisher and Paykel Optiflow system ^® (A) and Fisher and Paykel Airvo 2 ^® system (B). Both allow an inhaled oxygen fraction of up to 100% and generate a flow of up to 60 L/min. The Fisher and Paykel Airvo 2 ^® system combines a gas mixer and heater in one device.