1. If there is a need for humidification, you can use a humidifier to humidify the indoor air.

2. Use air conditioner to cool the room in summer. The air conditioner will continuously remove the water vapor in the indoor air, making the absolute water content of the indoor air lower and lower, and the air is relatively dry.

3. At this time, you can use a humidifier to humidify the room, or put a basin of clear water in a suitable position in the room to assist humidification.