ilmanjäähdytin

Ilmanjäähdytin is a Finnish term that translates to air cooler or swamp cooler. It refers to a device that cools air through the evaporation of water. Unlike air conditioners, which use refrigerants to lower temperature, ilmanjäähdytin works by drawing in warm air and passing it over a water-soaked pad or wick. As the water evaporates, it absorbs heat from the air, making the air cooler when it is then expelled back into the room. This process also adds moisture to the air, which can be beneficial in dry climates.

Ilmanjäähdytin units typically consist of a water tank, a fan, and an evaporative media. The fan pulls the warm air through the wet media. The water in the media evaporates, using heat from the air. The cooled, humidified air is then blown out into the surrounding space. These devices are generally more energy-efficient than traditional air conditioners and do not require a vent to the outside, making them portable. However, their cooling capacity is limited, and they are most effective in low-humidity environments. In very humid conditions, the evaporative process is less efficient, and the added moisture can make the air feel clammy. Therefore, ilmanjäähdytin is often considered a more budget-friendly and eco-conscious alternative for personal cooling or for smaller spaces.