The most important difference between an air cooler and an air conditioner lies in the way they cool: an air cooler evaporates water and blows the refreshed air into the room like a powerful fan, while an air conditioner actually cools the air via a refrigerant circuit and exhausts the heat outside. An air conditioner therefore objectively lowers the temperature, while an air cooler primarily provides a cooling sensation through airflow and evaporation. Air coolers are cheaper to purchase, consume much less power, and do not require installation, but they perform less well in a small, enclosed space with high humidity.
How does an air cooler work?
An air cooler, also known as an evaporative cooler, works on the principle of evaporative cooling. Water from the water tank is guided past a cooling element or evaporation filter, after which a fan blows air through this moist surface. Because the water evaporates, it draws heat from the air, releasing a refreshing airflow into the room. Many models, such as the AirFlow Air Cooler SM211, also have a compartment for ice cubes that makes the airflow even cooler. The result feels refreshing, but the temperature of the entire room does not actually drop: you primarily notice the wind and the evaporation on your skin.
How does an air conditioner work?
An air conditioner works with a closed cooling circuit and a refrigerant that absorbs heat from the indoor air and discharges it outside via a pipe or hose. In the case of a portable air conditioner, an exhaust hose runs to a window or wall duct; with a split unit, a compressor is located outside. Because the heat actually leaves the home, the temperature in the room drops measurably, regardless of the humidity outside. This makes an air conditioner more effective during a heatwave, but the installation is more complicated and the device consumes significantly more power than an air cooler or fan.
Difference in cooling effect
The cooling effect is the biggest difference between both devices. An air conditioner can cool a room by several degrees, even if windows and doors remain closed. An air cooler barely cools the air itself; the cooling sensation is created by the combination of airflow and evaporation, similar to the effect of perspiring. In a well-ventilated room with normal humidity, this works fine, but in a small, poorly ventilated room or on a humid summer day, an air cooler quickly loses effectiveness because the air is already saturated with moisture.
Difference in power consumption and costs
An air cooler consumes similarly little power to a sturdy fan, whereas an air conditioner quickly requires ten to twenty times as much energy. The purchase price difference is also large: an air cooler like the SM211 costs less than a hundred euros, while a portable air conditioner can quickly cost several hundred euros, and a fixed split air conditioner turns out even more expensive including installation. For those looking for occasional cooling on a few hot days per year, an air cooler is therefore much easier on the wallet.
Difference in installation and ease of use
An air cooler is ready for use in no time: fill the water tank, add ice cubes if desired, plug it into the socket, and you can start cooling. There is no need for an exhaust hose, and you can effortlessly move the device from the living room to the bedroom. An air conditioner requires more preparation: with a portable air conditioner, you must lead the exhaust hose through a window or wall, which often involves a window sealing kit, and a split air conditioner must be installed by a professional. For renters or people who want to switch quickly between rooms, an air cooler is therefore often more practical.
For whom is an air cooler the best choice?
An air cooler is a pleasant choice if you want quick and flexible cooling on a limited budget, without the hassle of installation or high energy costs. If you live in a well-ventilated space and are mainly looking for relief during hot days and nights, an air cooler is perfectly sufficient. If you are dealing with prolonged heat, a poorly ventilated room on the south side, or you want the temperature to actually drop measurably, then an air conditioner is the more effective but also more expensive option.
Direct answer: an air cooler cools via water evaporation and airflow and provides a refreshing feeling at low cost, whereas an air conditioner truly cools the air via a refrigerant circuit and is therefore more powerful but also more expensive and cumbersome to install.
Highlighted: AirFlow Air Cooler SM211
The AirFlow Air Cooler SM211 from Dynter is a compact, mobile air cooler that you can use immediately without installation. Thanks to the combination of the water tank and the ice cube compartment, it provides a refreshing airflow in the living room, bedroom, or office.
Cooling method: evaporative cooling based on water evaporation, which can be enhanced with ice cubes for extra cooling.
Mobility: compact and light enough to move effortlessly from room to room, without an exhaust hose or assembly.
Operation: multiple speed settings for an airflow that you can adjust to the room and time of day.
Price: from €59.95, significantly more affordable to purchase than a portable or fixed air conditioner.
Air cooler versus air conditioner in short
| Feature | Air cooler | Air conditioner |
|---|---|---|
| Cooling principle | Water evaporation + airflow | Refrigerant circuit, exhausts heat |
| Installation | Ready to use, no assembly | Exhaust hose or professional installation |
| Purchase price | From approximately €60 | From several hundred euros |
| Energy consumption | Low, comparable to a fan | Significantly higher |
| Effect at high humidity | Less effective | Remains effective |
| Mobility | Very flexible to move | Limited to non-mobile |
Still doubting between cooling without the hassle or structural cooling for the entire summer? Check out the AirFlow Air Cooler SM211 Black or discover the full range in the air conditioners and fans collection from Dynter.
Frequently asked questions
Is an air cooler as cold as an air conditioner?
No, an air cooler provides a cooling sensation via airflow and evaporation, but does not cool the room temperature as effectively as an air conditioner with a refrigerant circuit.
Does an air cooler also work well at high humidity?
An air cooler works best in a dry to moderately humid room. At high humidity, the water evaporates less effectively, which reduces the cooling effect.
How much water does an air cooler use per day?
That depends on usage and speed setting, but in general, you refill the water tank one to several times a day during intensive use on a hot day.
Can I use an air cooler in any room?
Yes, an air cooler does not require an exhaust hose and is therefore easy to move between, for example, the living room, bedroom, or office.
Is an air cooler suitable for the bedroom?
Yes, provided you ensure sufficient ventilation in the room. Optionally, choose a lower speed setting at night for less noise.
What does an air cooler cost in purchase and use?
An air cooler like the SM211 costs from €59.95 to purchase and, due to its low power consumption, uses only a fraction of the electricity costs of an air conditioner.