A gas transportation device, comprising: an outer housing comprising a case and a top cover, wherein the case comprises an inlet end, an outlet end and an accommodation groove, the accommodation groove is in fluid communication with the inlet end and the outlet end, and the top cover is covered on the accommodation groove; a valve body comprising a gas outlet plate, a valve plate and a first plate stacked sequentially and disposed within the accommodation groove, wherein the valve plate is located between the gas outlet plate and the first plate, wherein the gas outlet plate comprises a plurality of outlet apertures, the first plate comprises a plurality of first orifices, the valve plate comprises a plurality of valve openings, the plurality of valve openings are misaligned with the plurality of first orifices, and the plurality of valve opening are corresponding in position to the plurality of outlet apertures; and an actuator comprising a second plate, a frame and an actuating component, wherein the second plate is stacked and disposed on the valve body, the second plate comprises a plurality of second orifices, and the plurality of second orifices are corresponding in position to the plurality of first orifices, wherein the frame is stacked and disposed on the second plate, wherein the actuating component is stacked and disposed on the frame; wherein when the actuator is driven, through the structure that the plurality of first orifices and the plurality of valve openings are misaligned, the valve body is operated to open a flow path when an airflow is in a forward direction, and the valve body is operated to seal the flow path when the airflow is in a reverse direction, characterized in that the actuating component has a rectangular shape, and in that the gas outlet plate comprises a recessed portion recessed from a surface of the gas outlet plate and formed a depth, and the valve plate covers the gas outlet plate, so that a gap is maintained between the valve plate and the recessed portion of the gas outlet plate, and a ratio of the gap to the thickness of the gas outlet plate is ranged from 1:2 to 2:3, wherein the gap is ranged from 40 μm to 70 μm. an outer housing comprising a case and a top cover, wherein the case comprises an inlet end, an outlet end and an accommodation groove, the accommodation groove is in fluid communication with the inlet end and the outlet end, and the top cover is covered on the accommodation groove; a valve body comprising a gas outlet plate, a valve plate and a first plate stacked sequentially and disposed within the accommodation groove, wherein the valve plate is located between the gas outlet plate and the first plate, wherein the gas outlet plate comprises a plurality of outlet apertures, the first plate comprises a plurality of first orifices, the valve plate comprises a plurality of valve openings, the plurality of valve openings are misaligned with the plurality of first orifices, and the plurality of valve opening are corresponding in position to the plurality of outlet apertures; and an actuator comprising a second plate, a frame and an actuating component, wherein the second plate is stacked and disposed on the valve body, the second plate comprises a plurality of second orifices, and the plurality of second orifices are corresponding in position to the plurality of first orifices, wherein the frame is stacked and disposed on the second plate, wherein the actuating component is stacked and disposed on the frame; wherein when the actuator is driven, through the structure that the plurality of first orifices and the plurality of valve openings are misaligned, the valve body is operated to open a flow path when an airflow is in a forward direction, and the valve body is operated to seal the flow path when the airflow is in a reverse direction, characterized in that the actuating component has a rectangular shape, and in that the gas outlet plate comprises a recessed portion recessed from a surface of the gas outlet plate and formed a depth, and the valve plate covers the gas outlet plate, so that a gap is maintained between the valve plate and the recessed portion of the gas outlet plate, and a ratio of the gap to the thickness of the gas outlet plate is ranged from 1:2 to 2:3, wherein the gap is ranged from 40 μm to 70 μm.