A kind of nasal obstruction type respirator having float function includes a main unit, a headband unit, a nasal obstruction unit and a gas transmission unit. The main unit has a Hou wall, an antetheca and a connection wall, the connection wall has a leading portion portion linked with the Hou section portion of Hou wall connection and one with the antetheca, the thickness in the thickness in the leading portion portion small what Hou section portion, the antetheca can opposite what Hou wall generation floatings by the leading portion portion. Thereby, using the setting of the connection wall, the gas transmission unit can be made to be generated floating with respect to the what Hou wall by the antetheca can be interlocked when external force, and prevent the nasal obstruction unit from generating from user nostril and fall off.一種具浮動功能的鼻塞式呼吸器，包含一主體單元、一頭帶單元、一鼻塞單元及一輸氣單元。該主體單元具有一後壁、一前壁及一連結壁，該連結壁具有一與該後壁連結的後段部及一與該前壁連結的前段部，該前段部的厚度小於該後段部的厚度，該前壁藉該前段部可相對於該後壁產生浮動。藉此，利用該連結壁的設置，可使該輸氣單元受外力作用時可連動該前壁相對於該後壁產生浮動，且防止該鼻塞單元自使用者鼻孔產生脫落。
