SIDI IKHLEF, Ben AmarSIDI YAKOUB, MohamedAISSOU, AISSOU2024-02-132024-02-132022http://dspace.univ-temouchent.edu.dz/handle/123456789/2169Many dangers threaten health and the environment because of atmospheric pollution so researchers invented and developed machines to purify the air among these are the electro filters it is a typically vague system, where a large number of factors affect its performance in a complicated way. This work mainly consists of: The first stage is devoted to the theoretical study of corona discharge in EPS. In the second part, we extend our research to include experiments on electric current property to select the best materials and their sizes through several effects (polarity effect, inter-electrode space, etc.).frThesis