The Department of Education is to supply tens of thousands of carbon dioxide monitors to schools to help prevent the spread of Covid-19.
In a move that is being welcomed by teacher trade unions, the department is to provide portable monitors to all primary and secondary schools.
Primary schools will receive between one and 20 devices each, depending on their size, while second-level schools will receive up to 35 monitors each.
Carbon dioxide monitors measure the freshness of the air in a room and can indicate when ventilation needs to be improved by opening a window or doors in order to prevent the buildup of respiratory aerosols.