Ozone　from　bleed　air　is　a　main　contaminant　in　aircraft　cabins　and　can　be　harmful　to　air　passengers＇　health.　In　order　to　determine　the　feasibility　of　photocatalytic　ozone　purification　from　cabin　air,　a　catalytic　TiO2　film　was　coated　on　the　surface　of　an　activated　honeycomb　carbon　filter　and　its　ozone　removal　performance　was　analyzed.　The　effects　of　reaction　conditions　(such　as　flow　velocity,　humidity,　initial　concentration　and　the　wavelength　of　UV　light)　on　the　degradation　of　ozone　were　investigated.　The　experimental　results　showed　that　ozone　removal　efficiency　decreased　with　the　increase　in　flow　velocity　when　the　photocatalytic　decomposition　of　ozone　was　dominated　by　surface　reaction　and　the　dual　effect　of　humidity　on　ozone　removal　was　observed.　However,　the　flow　velocity　of　bleed　air　in　aircraft　cabin　was　much　too　higher　and　humidity　was　virtually　zero,　which　were　two　major　constraints　limiting　the　application　of　the　photocatalytic　removal　of　ozone　to　bleed　air　purification.　Therefore,　controlling　the　reaction　conditions　will　facilitate　ozone　removal　from　aircraft　cabins　using　photocatalytic　air　purification.　(C)　2014　Elsevier　Ltd.　All　rights　reserved.