1, dust custom: in the waxing moon twenty-four, dust sweeping house. Once the New Year arrives, families are busy sweeping to welcome the New Year. In the era of Yao and Shun, there is the custom of dusting in the Spring Festival.

2, meaning: according to folklore: because the "dust" and "Chen" homophonic, the New Year dust sweeping "in addition to the meaning of Chen Buxin", meaning that all the poor luck, bad luck, bad luck are swept out the door.