Human: Can you explain the differences between the various types of air conditioners? Assistant: 
There are two main types of air conditioner systems: central and window-mounted. Central air conditioning is a system that cools and dehumidifies the air in an entire home or building, while window-mounted air conditioners are typically used to cool individual rooms. Window-mounted air conditioners can be either evaporative or compressor based. Evaporative air conditioners use a fan to blow air over water and then through a filter, which cools the air as it passes through. Compressor-based air conditioners use a compressor to compress refrigerant gas and then circulate the cooled air throughout your home.