The day is a bit too hot, and you wish for an extra touch of freshness. Not a loud freezing AC, not an ice-cold bath, just a sweet chill breeze for a boost. If you are a happy swamp cooler owner, you are in luck! We have come up with a list of tips on how to make the air cooler colder.



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Have you ever added an unexpected spice to your dish, and it was a real taste revolution? The same works for swamp coolers — you can boost the performance by taking care of them the right way and making a few adjustments.

How to make evaporative air cooling work better? You need to understand how it works first. A swamp cooler (also known as an evaporative air cooler) takes the warm air from the outside and passes it through special wet evaporative pads. For example, in the case of Evapolar air coolers, the air goes through the evaBREEZE™ cartridge. The moisture cools the air and cleans it. Read more about:  Swamp Cooler vs. Air Conditioner: What Is the Most Cost-Effective Option?

Disclaimer: a swamp cooler is a synonym for an evaporative air cooler. Whichever term we are using when describing the tips for improving the efficiency of swamp coolers, we mean the same thing!

7 Swamp cooler tricks for extra efficiency, based on our expertise

1.Use your cooler in dry conditions

If you live in a dry climate, your swamp cooler will work better than in humidity. To keep a swamp cooler cold, dry hot air is what you need.

Why? Evaporation is one of the most natural processes out there. You experience it every day while sweating. Your body cools down when the wet skin cools down in dry air. If the air is too humid, there is already too much moisture in the air for efficient evaporation.

To increase the swamp cooler’s efficiency in humid areas, we recommend you use it together with a dehumidifier.


2. Join the green side

Certain indoor plants absorb humidity. They remove the damp ambiance by harvesting the water from the air through their leaves. Isn’t it a beautiful and healthy way to keep a swamp cooler cold? Here is a list of several green friends known to be best natural dehumidifiers:

  • Peace Lily
  • Boston Fern
  • Palms
  • Orchids
  • Spider Plant
  • Tillandsia
  • Cactus
  • English Ivy

3. No need to use cold water in your evaporative cooler

The ideal water temperature for a device like Evapolar is room temperature or slightly warm. This is one of the surest ways to make your swamp cooler more effective. You don’t need to use ice-cold water for the best performance — it doesn’t change anything when it comes to evaporation. For example, Evapolar air coolers will perfectly get the job done without freezing your device.

4. Efficient positioning

Personal evaporative air coolers are about making you comfortable in your space. To improve swamp cooler performance, direct the airflow towards you. One of the advantages of having a portable evaporative air cooler is that you can place it wherever you want and see what works best in terms of cooling for you.

Position the cooler instead of positioning yourself under the air con! Read more about: Swamp Cooler Sizing Guide

5. Open a window or two!

Contrary to air-cons, air coolers work better when the windows or doors are open. They need water and a fresh supply of air for proper functioning! As long as the windows are open, the moisture is also escaping the space, which provides better air circulation, and colder air, helps avoid moisture build-up and allows to make your swamp cooler colder and more efficient.

6. Maintenance

If your air cooler is malfunctioning due to bad maintenance, there are no tricks in the world that could save the day. In order to make a swamp cooler more effective in the long run, proper maintenance will give it a long, healthy and happy life.

For example, Evapolar air coolers are very easy to take care of, and they also have replacement cartridges, to freshen up your device every 3 to 6 months.

Among other maintenance tricks on how to make a swamp cooler colder:

  • Keep the grill and other parts clean at all times
  • Replace any details that may need replacing
  • Rinse the water tank after use

Often, the efficiency of the air cooler depends on the device itself. We went through the points on how to make your swamp cooler colder or cooler and more efficient and we have the ideal cooler model that ticks all the boxes.

7. Evapolar — the most efficient air cooler

Evapolar have been creating efficient and powerful devices for 6+ years already. When it comes to tips for improving efficiency of swamp coolers, here is how they fit the bill:

  • Evapolar coolers work perfectly in dry conditions. You will lower the temperature around you, while breathing fresh, humidified air!
  • You don’t need colder water for a stronger cooler, contrary to the popular opinion! Evapolar devices come with a voluminous water tank which allows to keep the cooler running from 6 to 9 hours, simply on warm or room temperature water.
  • Small, powerful and light — you can place the Evapolar coolers anywhere and direct the airflow towards you with the grill. The surest way to make the best of the airflow is to position it right in front of you.
  • Evapolar devices are very easy to maintain. They come with an additional warranty, so that you can enjoy the cool air as long as you want.

The powerful Evapolar air coolers are very easy to optimize. They perfectly fit on your work desk, night table, your camping car or next to the yoga mat. If you want to make the best out of it — just position the swamp cooler next to you and enjoy! With correct maintenance, cold water and well-aerated space, Evapolar coolers will serve you for a long time, providing you with fresh chilled air.


1. What is the maximum possible humidity to keep a swamp cooler cold?

We recommend running swamp coolers in the lowest humidity possible. How to avoid humidity from cooler if that is not possible, you can run it at the same time as a dehumidifier for better results. Even together, it is still healthier and less energy-consuming than running an air conditioner.

2. Does using actual ice make your swamp cooler?

You don’t need to be extreme. Simply using very cold water will be enough for the best results!

3. How do I store the air cooler for winter to guarantee proper maintenance?

Make absolutely sure that the device is 100% dry before storing it away. Excessive moisture in storage places can interfere with the details. Remove dust and debris from the vent, dry the device and store it.

4. Can I increase swamp cooler’s efficiency by using warm water?

Warm water does evaporate faster, which is why some think that this vapor is what makes the air colder. Unfortunately, using warm water only lengthens the cooling process. Use cold water for best results.

5. If I experiment too much with positioning my air cooler, can I get sick?

Be reasonable when you position the cooler! Don’t sit way too close to it, especially if you are too hot — the air current can indeed provoke a temperature decrease which can result in a cold. However, the evaporation is the most natural process there. Evapolar coolers run on evaporation which makes them the safest health option out there.