Fans consume far less energy than air-conditioners. A 1.2KW window air-conditioner costs 14 cents per hour in energy bill and 3-ton central AC unit costs 36 cents. But a humble table-fan consumes just 0.7 cent worth of energy per hour. Hence, you can keep cool with a fan during moderate seasons and save a lot of money.
Fans supplement the cooling power of air-conditioners. Even if an AC is on, a slow-moving fan helps distribute the air over a larger area.
You can keep the windows open when a fan is on. This helps in creating better air circulation.
Fans create "white noise" that is helpful in blocking other annoying sounds such as a car alarm or a dog-bark. This helps you to sleep peacefully.
Good-quality fans last as long as air-conditioners and cost much less.
Far less capital investment.
Far less maintenance cost.
Very cost-effective.
So, yes, your decision to purchase a fan is well-founded. Now let's talk about your options.