The present invention is related to a nebulizer, a nebulizer cup, and a nozzle thereof. The nozzle comprises a flow entrance, a first tube body, a second tube body, and a flow exit. The flow entrance connects with the nebulizer cup to receive the nebulized particles from the nebulizer cup. The first tube body has a first side and a second side which the first side and the second side are relative to each other. The first side has the flow entrance. The second side has an enlarged part to provide a space so as to filter the nebulized particles. The second tube body connects with the second side of the first tube body by a different angel format. The flow exit disposes on the end of the second tube shape body in order to export the nebulized particles after filtered.本創作相關於一種霧化裝置、霧化藥杯及霧化氣流導引裝置，該霧化氣流導引裝置包括一氣流入口、一第一管狀殼體、一第二管狀殼體以及一氣流出口。該氣流入口與該霧化藥杯連接，接收來自該霧化藥杯的霧化顆粒。該第一管狀殼體具有一第一端和一第二端，該第一端和該第二端互為相對端，該第一端具有該氣流入口，該第二端具有一膨大部，提供篩選霧化顆粒的蓄積空間。該第二管狀殼體與該第一管狀殼體的該第二端連接，該第二管狀殼體與該第一管狀殼體呈不同角度連接。該氣流出口設於該第二管狀殼體的末端，用以排出篩選後的霧化顆粒。
