The ability of cellular concrete waste (CC) to remove hydrogen sulfide (H2S) from a mimic biogas composed of nitrogen, oxygen and H2S was investigated using abiotic filtration systems for H2S concentration up to 1500 mg m−3 and Empty Bed Residence Time (EBRT) ranging from 30 to 180 s. The influence of the humidity of the material in H2S removal was studied. In wetted conditions (relative humidity > 97 %), 169 g of H2S were removed per kg of material. This value is probably lower than the maximum capacity of the cellular concrete since the experiment was ended before the end-of-life of the material. The H2S elimination capacity of cellular concrete waste could reach up to 32 g m-3 h−1. These performances are due to complex physico-chemical mechanisms operating simultaneously between H2S and the different components of cellular concrete (mainly calcium oxide CaO from the calcium silicate hydrate CaO SiO2 nH2O, and ferric oxide Fe2O3) leading to a modification of the mechanical structure of the material to calcium sulfate (gypsum CaSO4 2H2O) and the production of elemental sulfur (octasulfur S8). Empirical relationships based on H2S concentration and EBRT were established (i) to predict the Removal Efficiency (RE) of the filtration system (logistic equation); (ii) to assess the operating time of the material. Results obtained suggest that this simple, robust and cheap H2S removal technology would be a suitable and valuable technique to treat gas flowrates generated by decentralized domestic biogas digesters.