Basic mechanical models are the most budget-friendly, whereas units equipped with Remote Controls, LED Displays, and Programmable Timers command a premium. Advanced features such as Anion Air Purification (Ionizers), UV Sterilization for the water tank to prevent bacterial growth, and Inverter Technology (which allows for variable speed control and energy savings) can increase the unit price by 15-25%. Buyers should also look for Automatic Swing functions (horizontal and vertical) which improve air distribution.