The harmful effect of pollution on works of art is well known. One solution to protect artefacts is to use mall-size enclosures. This is even more necessary if the object itself off-gasses volatile compounds produced by its natural degradation. Acetic acid is thus produced by decomposition of cellulose of furniture wood or book paper itself. The sorption capacities of several conservation papers towards acetic acid vapour were studied. Adsorbents incorporated in the paper were: zeolite, activated carbon grains and fibres, calcium carbonate, magnesium oxide and mixtures of it. The adsorption capacity was measured by the method of breakthrough curve in a column filled by a large number of small pieces of paper and flowed by a vapour at constant pressure in nitrogen. Isotherms were obtained at ambient temperature and with/without humidity.