Recopilación: Swamp coolers

Yes, manufacturers usually list the recommended area in cubic meters or in CFM, which stands for cubic feet per minute of airflow. For a small room, a model with lower CFM may be enough, while a larger living room will need a higher CFM rating. If you are unsure, going a bit bigger is safer because too little power will disappoint.

Always use fresh air from outside instead of recirculated indoor air, because a swamp cooler needs to pull in dry outdoor air and add moisture to it. Set the fan to maximum speed, since faster airflow means stronger evaporation. Also open a window or door on the opposite side of the room so the humid air can escape.

Yes, there are small desktop and personal models that are tiny, quiet, and great at refreshing the air right in front of your face. For one person sitting at a computer or lying in bed, this is a very convenient solution especially in dry climates. Just remember that a personal model will not cool an entire room like a large floor unit will.