Could a simple oxygen change help ICU patients breathe easier after tube removal?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Participant aged 18 to 80 years old at time of recruitment to study) * Ventilated for greater than or equal to 48 hours with respiratory failure * Treating clinician agrees ready for a planned extubation (but pressure support ventilation, fraction of inspired oxygen less than or equal to 40 , positive end expiratory pressure less than or equal to 10 centimetres of water, Respiratory rate less than 20 breaths per minute) * Minimal secretions * Neurologically intact (In the opinion of the treating clinician, the participant is unlikely to fail extubation due to their neurological status) * Cardiovascularly stable (systolic blood pressure greater than or equal to 70 millimetres of mercury, heart rate less than or equal to 150 beats per minute) * Written informed consent Exclusion Criteria: * Cardiac Implant Device * Internal Neurostimulator * Unstable Spinal Fracture or Spinal Cord Injury * Body Mass Index \>50kg/m\^2 * Skin lesions or dressings over electrode belt site * Pregnancy or Lactating * Intercostal Chest Drain (at treating clinician's discretion) * Severe type II respiratory failure (arterial partial pressure of carbon dioxide greater than or equal to 12 kilopascals) * Severe acidosis (Hydrogen ion concentration greater than or equal to 80 nanomoles per litre) * Chronic respiratory disease limiting functional capacity (MRC breathlessness grade IV or V) * Severe heart failure (New York Heart Association Grade III or IV) * Decreased GCS * Cardiovascular instability (systolic blood pressure less than or equal to 69 millimetres of mercury or heart rate greater than or equal to 151 millimetres of mercury ) * Pulmonary embolism * Nasal obstruction * Previous bleomycin administration * Base of skull fracture * Life expectancy less than or equal to 3 months