Air Conditioner Criteria

I happened to run a quick research on Air Conditioners and how to select one of them... But the number of criteria seems to be a lot. So just look for the following if you are making a decision.

• Brand
• Price
• Window or Split
  
• Dimension (in door, out door)
  
• BTU (Ton) - This depends on your room capacity. 12000 BTU = 1 ton. And the products range from 8000 to 36000 BTUs. Also, remember to select the BTU based on the total volume that'll be empty in the room, how much will be the usual temperature in the room, how many people & how often do they access the room, which floor the room is in if you are staying in multi-storied building. (Check reference)
  
• EER (represents energy saving) - Move closer to 10.78
• Noise Level - Products range from 25 to 50
• Type of compressor - Rotary (is preferred with less noise) vs Reciprocating
  
• Digital (non-analog)
  
• Fan Speed settings (how many)
• Air direction
• Types of filters - Anti-Bacteria, deo-odorizing (Some new varieties are Plasma etc)
• Ease of cleaning filter
  
• Dehumidification
• Auto restart, Timer, Energy Saver - Really helps in saving energy
• Warranty
• Remote Control
• Preferable - Fast cooling, Child lock