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In patients with hypoxaemic respiratory failure, supplement oxygen is added to a non-invasive ventilator to increase the fraction of inspired oxygen (FiO2). The FiO2 delivered through these domiciliary, non-critical care ventilators is limited and it is determined by a number of factors, including mode of ventilation, location of the oxygen connection point, intentional and unintentional leak, oxygen flow rate, length of circuit and type of interface.1 2 In this issue of the Journal, Mebrate et al 3 described a novel adaptation for two commercially available non-invasive ventilators, which increases FiO2 delivery. The process of increasing oxygen mass in a motor engine is called turbocharging and the approach by …
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Commissioned; externally peer reviewed.
Data availability statement Data sharing not applicable as no datasets generated and/or analysed for this study.