Is this a joke? If this isn’t, then I think the total cost of the tools and equipments of creating this is more than one air conditioner
Check this video: replace cabin air filter

If fridges where 100% efficient his amount of cooling would be 0. Since fridges are not 100% efficient, they’re just heating their house instead.

Whoever thought of this has no idea of what they are doing. The refrigerator removes heat from the food and puts it into the air in your house plus the waste heat from the motor and compressor. All this does in increase that heat into your house.

You would be far better off to only use the fan. The laws of conservation of energy and thermodynamics are not circumvented so easily.