The invention relates to an infrared sudation device comprising a support element (1) extending along a longitudinal axis (X) and a cover element (2a, 2b) of semicylindrical shape mounted on said support element (1) so as to delimit an internal volume extending in the longitudinal direction between said support element and the internal surface of said cover element, said internal surface of said cover element being covered at least in part with a heating layer (3a, 3b) able to emit far-infrared radiation in at least part of said internal volume, said device being characterized in that it comprises a housing of photocatalyst (4), permeable to the infrared radiation emitted, supporting a photocatalyst (5) and arranged in proximity to the internal face of said heating layer (3a, 3b) so as to allow said photocatalyst to be activated using the energy supplied by said infrared radiation emitted.
