A fan is not the same as an air cooler or air conditioning. A fan simply moves air around, mimicking the wind outdoors. While it can make you feel cooler, it doesn't actually lower the room temperature. For effective cooling, you'll need an air conditioning system that actively cools the air.
But, using a fan can still make a noticeable difference in how you feel by creating a breeze and reducing heat. And if you're looking for a budget-friendly option, here are useful tips on how to make your own ice fan.