How does a ductless air conditioner work?
Evaporative cooling systems, including ductless air conditioners, operate by a simple method of drawing a large amount of air through a water-saturated membrane. The resultant underlying heat exchange produces a beneficial temperature fall of up to 59°F (15°C.) in dry air settings. It is worth remembering that evaporative cooling systems are not suitable for use in humidity controlled environments while a ductless air conditioner would be perfect there.