Specialized nebulizing tubes can be used repeatedly, but they need to be strictly sterilized and can be changed once every 1~2 months. At present, most of the clinical use of dedicated nebulizer tube, so there is less risk of cross-infection, after 84 disinfectant soaked or strictly sterilized nebulizer tube, can be used repeatedly, generally does not affect the effect of nebulization, while being able to save money for the user. Repeated use of the nebulizer tube can be reused for 1 to 2 months, if the use of a longer period of time does not exclude the possibility of nebulizer tube softening, breakage, which may affect the effect of nebulization, it is recommended that more than this period of time for replacement, the specific need to be combined with the actual situation of the decision, you can consult your own attending physician.