"It is true that portable air conditioners are of much convenience as they are mobile in nature and can be moved from one room to the other with ease. But to get the most of out of portable air conditioners it is important that good care is taken of the unit. There are some ways that will not only increase the efficiency of the portable air conditioning unit but also will increase the life span of the units.They are the following:Proper attention needs to be given to the position of the portable air conditioning unit and it should not be placed in a room that is dusty because the dust particles will coat the motor and it will get clogged thereby reducing the efficiency of the unit.Venting and water draining are also important aspects of the maintenance checklist of a portable air conditioner. If proper venting of the unit is not done chances are high that the AC will start malfunctioning too soon and similarly draining of the excess water in a portable unit is part of the preventive maintenance activity.Filters which are an integral part of an air conditioner should be cleaned at regular intervals so that the airflow is not restricted. Whenever the airflow is restricted, the unit has to work hard which in turn reduces the efficiency of the portable air conditioner. Similarly, it is important to keep the exterior of the unit clean as well so that the air can circulate without any hindrance.Last but not the least; professional inspection of the portable air conditioning at regular intervals is part of the maintenance activity of the portable air conditioners."