The present invention relates to a kind of breath actuated inhalator (BAI) actuators, comprising: can be loaded with the loading element of actuating power; Breath actuated trigger mechanism, the trigger mechanism are arranged to the actuating power of confrontation loading element, and respond what air-breathing by discharging the actuating power of loading element to trigger actuator; And actuating blocking device, the actuating blocking device moves between locked position of coupler and ready position, in the locked position of coupler, the actuating blocking device discharges actuating power from trigger mechanism, trigger mechanism is arranged in neutral position, and in ready position, the trigger mechanism is arranged on ready position.本發明涉及一種呼吸致動的吸入器(BAI)致動器,包括:能夠被加載有致動力的加載元件;呼吸致動的觸發機構,該觸發機構被佈置成對抗加載元件的致動力,並且響應於吸氣通過釋放加載元件的致動力來觸發致動器;以及致動閉鎖裝置,該致動閉鎖裝置在閉鎖位置和準備位置之間可移動,在所述閉鎖位置,所述致動閉鎖裝置將致動力從觸發機構釋放,將觸發機構設置在中立位置,而在準備位置,所述觸發機構被設置在準備位置。