Abstract: The invention relates to a foam element (7) made from a foam and particles (11) of at least one hydrophilic substance such as cellulose, superabsorbers. The foam element (7) containing the particles (11) has a reversible capacity to absorb moisture. A part of the particles (11) is completely embedded in the foam. Another part of the particles (11) is disposed protruding out from a surface (13) of the foam, such as cell walls (9) or cell webs (10). The foam without the hydrophilic substance has an absorption capacity of more than 2.8% by weight at an equilibrium moisture corresponding to a temperature of 23° C.

Abstract: The invention relates to a foam element (7) made from a foam and particles (11) of at least one hydrophilic substance such as cellulose, superabsorbers. The foam element (7) containing the particles (11) has a reversible capacity to absorb moisture. A part of the particles (11) is completely embedded in the foam. Another part of the particles (11) is disposed protruding out from a surface (13) of the foam, such as cell walls (9) or cell webs (10). The foam without the hydrophilic substance has an absorption capacity of more than 2.8% by weight at an equilibrium moisture corresponding to a temperature of 23° C.

Abstract: The invention relates to a foam element with a hydrophilic substance incorporated in the foam in the form of cellulose of the structure type based on the crystal modification of cellulose-II, and the foam element incorporating the cellulose has a reversible capacity to absorb moisture. A proportion of the cellulose is between 0.1% by weight and 10% by weight. A value of the foam moisture corresponding to an equilibrium moisture in a first ambient atmosphere is increased during use in a second ambient atmosphere. The moisture absorbed by the cellulose II after use evaporates again within a period of between 1 hour and 16 hours until the initial value of the foam moisture corresponding to the equilibrium moisture by reference to the ambient first atmosphere is restored.