Window Air Conditioners with Silver Ion Filter utilise memory function that helps to remember the operation state before power cut and automatically resumes to previous state when power comes back. These Air Conditioners are equipped with silver ion filter that kills bacteria in the air and controls the growth of microbes such as bacteria, viruses, fungi, and spores by destroying their inner configuration and absorbing the cell`s elements. These Air Conditioners work as a dehumidifier when put in dry mode and relieves from excess humidity in the room. Window Air Conditioners with Silver Ion Filter automatically selects the mode in which it should run by judging the difference in the ambient temperature and the set temperature.