Copy and paste. The brand of a big group in Hunan has been doing this business for 10 years. Domestic private guards are basically his peers or subordinates, which is a leading position. As for the products, they are all officially put on record, and they are related to drugs, but they are not drugs, just brand names and machinery names. The probiotics you mentioned are also famous brands, but the focus is not disinfection. You can understand that it is useful to supplement you with some necessary beneficial bacteria, which is equivalent to strengthening the self-purification function of the human body. But for some people, it may not work as quickly as antibiotics, and then you can talk about it. My suggestion is to clarify the product logic first.