Many people think that the magic sponge (also known as nano-sponge) is poisonous because it exceeds the standard of formaldehyde. However, after a series of experiments, the nano-sponge has no formaldehyde exceeding the standard, and it has good physical stability and is insoluble in water. The parameters are in line with environmental standards, and all can be used with confidence. But no poison does not mean that you can eat. Do not put it where your child can get it, and avoid eating it.
2019-02-25