Wearable air purifier

A wearable air purifier comprising a headgear, an air purifier assembly, and a nozzle assembly 100. The air purifier assembly comprises a filter and an airflow generator for generating an airflow through the filter. The nozzle assembly includes an inlet aperture to receive filtered airflow from the air purifier assembly, and an air outlet for emitting the filtered airflow from the nozzle assembly. The nozzle assembly includes a first end section 110 connected to the headgear, a second end section 112 connected to the headgear, and a midsection 102 connected to the first end section by a first hinge 104 and connected to the second end section by a second hinge 104. At least one of the first or second hinges comprising a pin received within a barrel. In which the barrel comprises a slot through which filtered airflow passes. A flexible duct may extend though the slot of the barrel. A nozzle assembly for a wearable air purifier is also provided.