Lodewyckx, P., L. Fernandez-Velasco, and Y. Boutillara. “Estimating the Service Life of Activated Carbon Filters for Air Purification”. Eurasian Chemico-Technological Journal 21, no. 3 (September 30, 2019): 193–201. Accessed April 26, 2024. https://ect-journal.kz/index.php/ectj/article/view/860.