Cyprus University of Technology and ERATOSTHENES’ Atmospheric Remote Sensing Unit of the Department of Civil Engineering and Geomatics and the Eratosthenes Centre of Excellence/EXCELSIOR H2020 Teaming participated at the Pan-European COVID19 ACTRIS-EARLINET campaign. The ERATOSTHENES Centre of Excellence–‘Excelsior’ H2020 Teaming Project & Cyprus University of Technology participated actively in the EARLINET/ACTRIS intensive campaign, using the EARLINET lidar and the AERONET sun photometer of the Cyprus University of Technology. The campaign was organized as part of the ACTRIS initiative for studying the changes in the atmosphere during the COVID-19 lockdown.