> For the complete documentation index, see [llms.txt](https://sotay.ehs.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sotay.ehs.vn/an-toan-suc-khoe-moi-truong/an-toan-may/thiet-bi-nang/ma-ni.md).

# Ma ní

![](/files/-MdOWDK5ZjjV3R6E1HsP)