Amazing smell of perfume can create a good environment in the room. However, you have to cautious while using it as some people can be allergic to them. If you want to remove foul or bad smell, then we recommend opening up the windows and doors for some time before switching on the AC. The fresh air will remove the foul smell present in the room. So, you don’t have to use perfumes for dealing with the odors. However, if you still want some good fragrance in the room, then go for room fresheners. This doesn’t affect the AC performance and makes sure the room smells good. We also recommend to clean the air conditioner regularly.