Sources
Aerosol‐generating events	Coughing/sneezing/expectorating Non‐invasive ventilation or positive pressure ventilation with inadequate seal* High flow nasal oxygen Jet ventilation Delivery of nebulised or atomised medications via simple face mask Cardiopulmonary resuscitation (before intubation) Tracheal extubation
Procedures vulnerable to aerosol generation (increased risk of association with aerosol‐generating events)	Tracheal suction (without a closed system) Laryngoscopy Tracheal intubation Bronchoscopy/gastroscopy Front‐of‐neck airway procedures (including tracheostomy, cricothyroidotomy)

NIV = non‐invasive ventilation.

^*The reliability of the seal is greatest with tracheal tube > supraglottic airway > face mask.