1, remember to open the window for ventilation: it is best to open the window for ventilation after 8 pm.

When we turn on the air conditioner, we'd better not turn on the indoor appliances at the same time.

3. Friends can put a pot of water under the window. If we put a pot of water under the window, the indoor temperature can be effectively reduced a lot. We will use the fan, and there will be some moisture in the room, which will quickly reduce the indoor temperature.

4. Sunscreen curtains can be used: We install heat insulation curtains on the windows to prevent outside heat from entering the room.