It suggested that the acute toxicity of CBN may be related to the systems of respiratory, circulation and central nervous.

提示，CBN急性中毒时主要作用在呼吸及循环系统，并涉及中枢神经系统。

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Toner, toner particles can not be melted in the body excrete difficult, long-term inhalation or inhalation of a lot of time, then likely to cause respiratory disease, and toner little toxicity;

碳粉，碳粉颗粒在人体中不能被融化排泄困难，长期吸入或者一次性吸入很多的话容易造成呼吸道病症，而且碳粉有点毒性；

youdao

Toner, toner particles can not be melted in the body excrete difficult, long-term inhalation or inhalation of a lot of time, then likely to cause respiratory disease, and toner little toxicity;

碳粉，碳粉颗粒在人体中不能被融化排泄困难，长期吸入或者一次性吸入很多的话容易造成呼吸道病症，而且碳粉有点毒性；

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