Jan 12, 2021 A simple, portable and cost-effective device that delivers consistently high levels of oxygen to Covid-19 patients and helps keep their lungs from collapsing has been formally licenced. The South African invention, named OxERA (Oxygen-Efficient Respiratory Aid), is being touted as a game changer where there are a large number of Covid-19 patients but a lack of skilled staff, ICU and high care facilities; and insufficient bulk oxygen supplies. It is said to effectively bridges the gap between current standard oxygen therapy via face masks and ICU-based non-invasive or mechanical ventilation, while requiring no more oxygen flow than a standard face mask.