Filtering materials of unprocessed plastics; filtering materials of chemical substances; filtering materials of mineral substances; filtering materials of vegetable substances; ceramic materials in particulate form, for use as filtering media; filtering preparations for the beverages industry

Filters being parts of machines or engines; dust exhausting installations for cleaning purposes; dust removing installations for cleaning purposes; filters for cleaning cooling air, for engines; vacuum cleaners; filtering machines

Air filtering installations; gas scrubbing apparatus; filters for air conditioning