A kind of artificial respirator includes a flexible air bag and a connecting tube group. The air bag is in hollow form and has a blowing mouth,The air bag for squeeze with by the blowing mouth squeeze out gas,The connecting tube group connects the breathing part of the air bag and a such as breathing mask,Enter breathing part through the connecting tube group for the gas squeezed out by the air bag,Connecting tube group include a connection air bag the first pipe portion,One second pipe portion,One measuring equipment interface,One pressure relief valve port and a barricade,Second pipe portion connect with the first pipe portion and breathing part and is connected to the first pipe portion and the breathing part,The measuring equipment interface and pressure relief valve port are respectively formed the second pipe portion of what,In barricade position what second pipe portion and make to pass through the gas flow path of pressure relief valve port by breathing part in the second pipe portion not to be straight line path.一種人工呼吸器，包含一具可撓性的氣囊以及一連接管組。該氣囊呈中空狀並且具有一輸氣口，該氣囊可供擠壓以由該輸氣口擠出氣體，該連接管組連接該氣囊與一例如呼吸面罩的呼吸件，供由該氣囊擠出的氣體經該連接管組進入呼吸件，連接管組包括一連接氣囊的第一管部、一第二管部、一量測裝置插接口、一洩壓閥口以及一擋牆，第二管部與第一管部及呼吸件連接而連通第一管部與該呼吸件，該量測裝置插接口與洩壓閥口均形成於第二管部，擋牆位於該第二管部內並使第二管部內由呼吸件通過洩壓閥口的氣體流路不為直線路徑。
