The LIFE-MEGA project is funded by the European Union within the Life Program 2018. The overall objective of the project Life-MEGA is to develop and demonstrate the effectiveness of an online microclimatic tool to continuously monitor and maintain concentrations of NH3, CH4, PM and VOCs in pig sheds below a threshold value. Two different technologies will be tested in pilot pig sheds in Italy and Spain: (i) a wet scrubber prototype to improving the indoor air quality and animal welfare, and (ii) a dry scrubber prototype, currently used in other industrial sectors. The project actions will be realized between 1st October 2019 and 30th September 2022.