wallpapers must be installed on the ceiling of rented apartment or high on walls <a href=https://www.acte-sas.fr/mauris-accuml-dia-in-lacus-edipisc/audio-post-format/>https://www.acte-sas.fr/mauris-accuml-dia-in-lacus-edipisc/audio-post-format/</a>. Check and clean the chimney annually.