To determine the CFM you need, calculate the cubic footage of the room (Length × Width × Height) and divide by 2 .
A window swamp cooler draws outside air through water-saturated pads (cellulose or aspen). Evaporation absorbs latent heat, lowering air temperature while increasing humidity. The cooled air is blown directly into the room. No refrigerant or compressor is used. Key equation: window swamp cooler
A powerful fan pulls hot, dry air from outside through these wet pads. To determine the CFM you need, calculate the