Turn any fan into a free air conditioner | A DIY air conditioner that actually works!!!

Attach the bottles in pairs by their handles. Then drape them over each side of the fan, straddling the top frame. This will create one bottle hanging at the front and one at the back on the left side, and the same configuration on the right. The air is thus cooled once as it enters, and then a second time as it exits, providing formidable double efficiency without blocking the central airflow.

Safety instructions and usage tips:
Using ice near an electrical appliance requires a few simple but essential precautions to ensure safe operation:

Condensation Management: Frozen bottles will inevitably "sweat" when exposed to the ambient air, especially if the humidity level in your area is high. It is essential to place a thick towel under the fan to collect the dripping water.
Electrical Safety: Always plug your fan into an outlet equipped with a ground fault circuit interrupter (GFCI outlet). In the event of a humidity-related problem, this device will instantly cut off the power supply.
Appliance Stability: A fan loaded with water bottles becomes heavy and can tip over. If you have children or boisterous pets, attach a wooden board under the base of the square fan to ensure stability and prevent it from tipping over.
Bottle Rotation: Always design your bottle holders so they are easily removable. The goal is to be able to detach molten bottles in seconds, return them to the freezer, and immediately replace them with a set of freshly frozen bottles.
This homemade air conditioning system is a practical and remarkably effective way to combat heat waves. By using oscillating fans, cool air will be distributed throughout the room, significantly increasing comfort. With a good rotation of bottles in your freezer, you can keep a small to medium-sized room cool all day long, without spending a single penny on extra electricity for air conditioning.