The different mathematical models employed in the scope of individuals' protection by carbon mask adsorptive filters were reviewed. Several models with increasing complexity have been proposed in the literature along the time. Each discussed model intends to simulate the dynamic behavior of the filters and to predict their useful time according to toxic limits. Taking into account that these filters are used in the protection of human lives, it is essential to accurately predict their behavior, making the use of the more complex models necessary and also the knowledge of the different parameters values as rigorously as possible very important.

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