On Tuesday, 21st November 2023, the Department of Medical Laboratories Techniques at Al-Maarif University College held a scientific seminar entitled (Reactivation of Carbon Filters of Water Purification Units), given by the lecturer from the department Dr. Ayad Abd Al-Razaq Mutar. The seminar discussed the identification of carbon filters used to purify drinking water, which in turn serves to take care of the environment and free it from some pollutants.