Price, trademark.

1. Herdsman’s fans are relatively well-known in the livestock breeding industry, and their prices have always been relatively high. For example, the most conventional 1.38-meter model is generally priced around 1,600-1,800 yuan. It is a genuine product. The fan you purchased is relatively cheap. If it only costs a few hundred yuan, it must be fake.

2. Look at the trademark of the fan. There will be a trademark on the genuine fan. The trademark is a mark that distinguishes the source and authenticity of goods and services. Counterfeit products will not have trademarks on them to prevent customers from realizing they are fake and making complaints.