Biotrickling　filters　(BTFs)　for　volatile　organic　compounds　(VOCs)　have　attracted　tremendous　research　attention　in　the　field　of　environmental　engineering.　However,　the　problem　of　clogging　occurred　during　the　long-term　operation　limits　their　practical　applications.　To　alleviate　the　clogging,　an　integral　polypropylene　(PP)　packing　coated　with　polydimethylsiloxane　(PDMS)　was　prepared,　and　in　combination　with　fungus,　its　performance　was　investigated　for　toluene　elimination.　Two　laboratory-scale　BTFs　were　started　at　low　toluene　concentrations　of　200-900　mg.m(-3).　Subsequently,　a　series　of　experiments　were　conducted　at　toluene　concentrations　of　47-2906　mg.m(-3),　with　empty　bed　residence　time　(EBRT)　values　of　50　and　40　s.　Toluene　removal　efficiency　reached　100　%　at　the　inlet　toluene　concentration　of　296-560　mg.m(-3)　for　EBRT　of　50　s.　The　maximum　elimination　capacity　(EC)　of　98　g.m(-3).h(-1)　was　obtained　at　an　inlet　toluene　load　of　117.67　g.m(-3).h(-1).　Clogging　was　relieved　by　manual　cleanup,　and　the　BTFs　were　operated　steadily　for　nearly　8　months.　CO2　production　was　monitored　during　the　whole　operation,　and　toluene　mineralization　was　evaluated　simultaneously.　Furthermore,　the　biofilm　structure　and　microbial　diversity　were　analyzed.