NOVELTY - A gas treatment equipment comprises space (10) positioned along direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas (GS) from entrance of ventilation path (1) to exit, and honeycomb structures (4) with through-holes (4a) provided in direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas by penetrating.    USE - A gas treatment equipment used for producing hydrogen used for fuel cell.    ADVANTAGE - The gas treatment equipment has large surface area of gas flow opposing surface, and improved gas treatment capability.    DETAILED DESCRIPTION - A gas treatment equipment comprises space (10) positioned along direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas (GS) from entrance of ventilation path (1) to exit, honeycomb structures (4) with through-holes (4a) provided in direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas by penetrating, first electrode positioned on outer side of honeycomb structure positioned at the end of direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas among honeycomb structures, second electrode positioned on outer side of honeycomb structure positioned at the other end of direction which orthogonally crosses perpendicularly with respect to passage direction of process target gas among honeycomb structures, and high-voltage source which applies high voltage between first electrode and second electrode and makes through-hole of honeycomb structure and space between honeycomb structures generate plasma. The honeycomb structure has greater than or equal to 2 gas flow opposing surfaces which receive fluid pressure to passage direction of process target gas and which plasma does not generate while facing passage direction of process target gas and touching flow of process target gas.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of gas treatment equipment. (Drawing includes non-English language text).    Ventilation path (1)    Honeycomb structures (4)    Through-holes (4a)    Space (10)    Process target gas (GS)