1, the climate is suitable: Hainan is located in the tropical region, with high temperature all year round, hot summer but high humidity, and warm winter. Because the climate is relatively pleasant, many Hainanese think it is unnecessary to install air conditioners to adjust the indoor temperature.

2. Economic factors: The installation and use of air conditioners require certain expenses, including the purchase of air conditioning equipment, maintenance and electricity charges. For some Hainan people with relatively poor economic conditions, it is bound to feel that it is not worthwhile to spend these expenses to install and use air conditioners.