Daily Care instructions for Citation speakers fabric (wool) Daily care and immediate stain removal will ensure that your Harman/Kardon Citation wool upholstery will keep looking good for many years. Never use undiluted cleaning agents, bleaching agents, ammonia or soap intended for hard surfaces, as this may damage the fabric and Citation speaker itself! Many types of stain can be removed using warm water with a microfiber cloth (not too wet). Stain removal guide If you act quickly with any stains on your Citation device then it is not difficult to remove or avoid any spill/stains. Here is how to do it. First, soak up the liquid with an absorbent napkin or Microfiber cloth. For dried stains use a spoon to roughen the surface. To avoid the stain spreading further start from the edge of the stain working towards the middle. WARNING! Be careful when using solvents, because these could dissolve the upholstery material beneath. Regular and normal cleaning Vacuum frequently every week is the best way to keep the Harman/Kardon Citation fabric intact or use a varm wet Microfiber cloth. When using a vacuum cleaner, remember to set the power to half which is most appropriated to use for Citation devices (this will not harm the design or fabric). General information These tips are purely recommendations and cannot guarantee 100% stain removal on your Harman/Kardon Citation device. In all cases, we recommend contacting a professional cleaning company, particularly for bigger stains and for thorough cleaning the wool fabric and speaker. HARMAN do not have any recommended companies or partners to redirect any customers too. For furter information we advise visiting the fabric company called KVADRAT by clicking on these links below: https://kvadrat.dk/care-and-maintenance/upholsteries https://kvadrat.dk/download/media/download-section/relatedfiles/kvadrat-maintenance-manual-2016-uk.pdf There are a lot of information about the fabric we are using and you can contact them for further information.