This study aims to develop a multicentre trial and to assess which children with common respiratory illnesses such as pneumonia, bronchitis and asthma benefit from using Nasal High Flow (NHF) Therapy. We will perform a study comparing current best practice (standard oxygen delivery via subnasal cannula or facemask) versus NHF therapy.

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With the introduction of this easy-to-use respiratory system in regional and tertiary centres, we are aiming to investigate if NHF therapy is the superior treatment for these children in comparison to standard oxygen delivery. We will also investigate if there is a reduction in the need for transfer of these patients to the intensive care unit