Abstract: A regenerative cartridge of a rebreather for isolating self-rescuers with chemically-bonded oxygen. The cartridge includes: a hermetic housing; a perforated shell arranged in the housing with an annular gap between the shell and the side wall of the housing and made with a central channel having perforated walls; a regenerative product arranged in the perforated shell; a heat-gas distributor arranged in the bulk of the regenerative product. The heat-gas distributor is made in the form of perforated plates positioned in a radial arrangement in the bulk of the regenerative product. One of the lateral sides of each perforated plate is made with a longitudinal bend of L-shaped cross-section. The walls of the L-shaped bends of the neighboring perforated plates are successively connected between them to form a central channel confined by the shelves of the L-shaped bends.