There are main four modes available in an inverter AC namely auto, cool, dry, and fan. Auto Mode – In this mode, the cooling required for any room is determined automatically by the air conditioner based on the outside temperature. It is perfect when you are sleeping at night or planning to run the AC for a long time whereby the outdoor temperature variation is likely. Cool Mode – The cool mode is the manual mode of cooling where you set a particular temperature, and the cooling effect will be served by the machine accordingly. It is best when you do not want that chilly atmosphere in the room or want instant cooling by fixing the temperature at the lowest point. Dry Mode – This mode is applicable in the rainy season or when the room is humid. This is when the AC works more like a dehumidifier. You will find it better to breath as this can eliminate the moisture from the room air. Besides, too much moisture in the room air can damage your wooden furniture and promote the presence of bacteria in the air. Fan Mode – Going by its name, it is the mode where you use your AC as a fan to circulate air in the room. You can use it in the winter season to heat up the units of ACs so that it does not get jammed and need maintenance service. It is also useful when the temperature is pleasant in the room, but the air is suffocating due to lack of circulation.