The GESTIS-Dust-Ex database has been extended with the addition of data on over 1,000 new substances. The database can now be searched for the combustion and explosion properties of over 6,000 dusts. The service, created in the late 1970s and continually expanded since then, contains safety data obtained from laboratory analyses, and is maintained by the Institute for Occupational Safety and Health of the German Social Accident Insurance (IFA). Searches are possible in English, German and French. The French version is supervised by the French INRS. The database, which is accessible online free of charge, provides planners and operators of plants and machinery that generate or dissipate potentially explosive dusts with a basis for safe design. See here for more information: www.dguv.de/ifa/gestis-dust-ex