As a daily household appliance, reasonable use of fans can effectively reduce energy consumption while ensuring use effect. The core of energy saving lies in reducing motor load and optimizing operation mode. First, choosing the appropriate wind speed gear is crucial: in most scenarios, medium and low wind speeds can already meet the cooling needs. High wind speed not only doubles power consumption (fan power is positively correlated with wind speed, and high wind speed power is usually 2-3 times that of low gear) but also may cause unnecessary wind blowing feeling. For example, using low wind speed with the timing function (setting to turn off after 2-4 hours) during night sleep can not only avoid physical discomfort caused by blowing all night but also save electrical energy.​
Secondly, optimizing the use environment can improve energy efficiency: the cooling effect of fans relies on air circulation. If the indoor doors and windows are closed tightly and air does not circulate, the fan can only circulate indoor hot air, resulting in poor cooling effect and increased motor load. When using, windows should be properly opened for ventilation to maintain indoor and outdoor air exchange, allowing the fan to introduce cool outdoor air into the room, improve cooling efficiency, and thereby reduce the time of high wind speed operation. In addition, avoid blowing the fan directly at high-temperature objects (such as heaters, ovens, walls exposed to direct sunlight). The heat emitted by these objects will make the fan motor work in a high-temperature environment, increasing energy consumption and affecting motor life.​
Reasonable matching with other home appliances can also achieve energy saving: when used with air conditioners, fans can accelerate indoor air circulation, making the distribution of air conditioning cold air more uniform. At this time, the air conditioning temperature can be increased by 1-2℃ (for every 1℃ increase in air conditioning temperature, energy consumption can be reduced by 5%-8%), while the power of the fan is only about 1/10 of that of the air conditioner (ordinary fan power is about 30-60W, while air conditioner is more than 1000W). The combination of the two can not only ensure coolness but also significantly reduce total energy consumption. It should be noted that avoid turning on multiple fans blowing at the same area at the same time. This method cannot improve the cooling effect but also causes waste of electrical energy. When using in multiple rooms, fans should be turned on selectively according to the number of people and space size.​
In addition, regular cleaning and maintenance are also important links for energy saving: as mentioned earlier, dust accumulation on the blades will increase weight, requiring the motor to consume more electrical energy to maintain speed. After cleaning, the motor load of the fan is reduced, and energy efficiency is naturally improved. At the same time, regularly check if the motor is short of oil and if parts are loose. These problems will increase the motor operation resistance, leading to increased energy consumption. Timely maintenance can ensure the motor is in the best working condition. In addition, choosing fan products with higher energy efficiency grades (the higher the energy efficiency grade, the lower the power consumption per unit air volume) will have more significant energy-saving effects in long-term use.