HoloLens At the beginning of the pandemic, it was announced that Microsoft HoloLens Mixed Reality headsets were to be used by frontline medical staff in the fight against COVID-19. The technology offered the possibility of remote care in the midst of a highly contagious and deadly virus and enabled clinicians at Imperial College Healthcare NHS trust to visit patients in high-risk wards in full PPE and a HoloLens. This system then enabled clinicians to feed live footage to colleagues in a low-risk area through the Dynamics 365 Remote Assist app. A year later, the headset technology is still showing considerable value by reducing the amount of time staff are spending in high-risk areas and significantly reducing personal protective equipment (PPE) usage, as only the doctor wearing the headset is required to dress in PPE. Imperial College Healthcare NHS trust has said that using HoloLens has led to a fall in the amount of time staff are spending in high-risk areas of up to 83%. It has also been shown that using HoloLens is saving up to 700 items of PPE per ward, per week.