It seems that you are a person who pays attention to details. It is true that aluminium is a harmful metal, but it does not need to be too much. Grasp the principle of one degree, in household tools, pay attention to use as little aluminum tableware as possible to avoid the intake of aluminum in the human body. Moreover, aluminum alloy is a widely used material in daily life. As long as its aluminum content does not exceed a certain amount, it is harmless to the human body only when it comes into contact with the skin. Moreover, products that have been sold offline are basically subject to strict checks and tests before they are sold. So, if it is a wiper mop, you can use it with confidence.