Honeycomb ceramics are used in the automobile as carrier, owing to its large specific surface area. Being able to be coated with the active catalytic components of precious metal, honeycomb ceramics are suitable for fabricating emission catalytic converter in diesel or gasoline vehicle to get through emission such as CO, NOx and hydrocarbon etc. after purified.

Honeycomb ceramics are applied to NOx-removing systems for purifying the flue gas of the boiler firing coal at power plant, to harmful smog cleaning systems in combusting mass rubbish abroad. By the same token, honeycomb ceramics as carrier are generally utilized in chemical and mining industry for purifying noxious gas.