LIQUID LITTERS AND BIOFILTER, CARTRIDGE AND ELEMENTS THEREOF; ATRFILTER AND BIOFILTER CARTRIDGE AND ELEMENTS THEREOF; AIRFILTERS FOR DOMESTIC AND COMMERCIAL INSTALLATIONS; WATER FILTERS FOR GUTTER DRAIN PIPES; SEWAGE TREATMENT PLANTS; SEWAGE DEPOSIT PLANTS AND BIOFILTER THEREOF; AIR-BIOFILTERS FOR DISPOSAL SITES, SEWAGE COLLECTION SYSTEMS AND SEWAGE NETWORKS; AIRBIOFILTERS FOR PUMP SHAFTS OF FOOD BUSINESS, BIOFILTERS FOR SEWAGE BASINS OF BREWERIES; BIOFILTER-LIDS MADE FROM SYNTHETIC SUBSTANCE...