The kinds and features of cabin filter: Prevailing Carbon Cabin Filter: the difference from Common Cabin Filter is that it has a layer of filtering carbon, absorbing poisonous gas, like ozone, nitrogen oxide, sulphur and hydrocarbon.Common Cabin Filter: high-quality cabin filter’s paaper core is made up of polymer fibre interlayers, able to 100% filter particle whose diameter is over 0.003mm, like pollen,dust and so on. Smaller particles, like bacteria, soot whose diameter is below 0.001mm can be 80% filtered by electrostatic interaction of cabin filter. The temperature for high-quality cabin filter is between 45°Cand 85°C .