AC is not required if you have own this symphony cooler.As the name suggests its make me feel winter in summer.
I am using this model of symphony from last 1 year.No complains so far.sounds is unnoticeable at times.It doesn’t make so much noise when you sleep.the best part is that it is easily movable even with full of water.it cools your medium size of room an 1 hour and it has warranty which is great.i prefer this cooler over air conditioner.There is no need to Ac if you have this cooler.
I dont have any idea of its performance in big rooms
I am happy to have it.