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How To Clean Evaporative Cooler Pads

Evaporative coolers, also known as swamp coolers, are a popular cooling option for homeowners and businesses due to their energy efficiency and cost-effectiveness. These cooling systems work by passing outdoor air over water-soaked filter pads, utilizing the power of evaporation to lower air temperatures. However, over time, these filter pads accumulate dust, pollen, and other particulates, leading to unpleasant odors and potential issues like mold and bacteria growth. Regular cleaning and maintenance of the evaporative cooler filter pads are crucial to ensure optimal performance. In this blog, we will provide you with a step-by-step guide on how to clean your evaporative cooler filter pads effectively. Let us first learn more about the benefits of Evaporative Coolers.


Evaporative Coolers offer several benefits that make them a great choice for cooling:

1) Energy Efficiency

Evaporative coolers are designed to be energy-efficient. They use significantly less electricity as compared to traditional air conditioners, resulting in lower energy bills and reduced environmental impact.

2) Cost-Effective

When it comes to upfront costs and long-term savings, evaporative coolers are a budget-friendly option. Their simpler design and lower energy consumption make them more affordable to purchase, install, and operate. Additionally, maintenance and repair costs are generally lower than those of other air conditioning systems.

3) Environmentally Friendly

As Evaporative Coolers don’t rely on harmful refrigerants or chemicals, that means they have a smaller carbon footprint and release fewer greenhouse gases. By choosing an evaporative cooler, you’re making an eco-friendly cooling choice.

4) Improved Air Quality

Unlike air conditioners that recirculate indoor air, evaporative coolers continuously bring in fresh outdoor air. This constant ventilation helps remove stale air, odors, and indoor pollutants, leading to improved indoor air quality and a healthier living environment.

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5) Humidity Control

Evaporative coolers increase moisture levels in the air. This can be particularly advantageous in dry climates or during hot summer months when low humidity levels can cause discomfort. By adding moisture, evaporative coolers help eliminate issues like dry skin, dry eyes, and respiratory problems.

6) Natural Cooling Process

The cooling mechanism of evaporative coolers is based on the natural process of evaporation. They utilize water to cool the air, eliminating the need for chemical refrigerants or compressors. This natural approach not only makes them more environmentally conscious but also reduces the overall complexity of the system.

7) Easy Installation

Evaporative coolers are relatively easy to install, especially in comparison to complex ductwork systems required for traditional air conditioning. They can often be integrated into existing ducts or mounted on windows, roofs, or walls with minimal modifications.

8) Versatility

Evaporative coolers can be used in various settings, including residential homes, commercial buildings, warehouses, garages, and outdoor spaces. They are adaptable to different sizes and can cool large areas effectively.

9) Operation in Open Spaces

Unlike air conditioners that require enclosed spaces, evaporative coolers are well-suited for open areas. They provide effective cooling for outdoor events, patios, workshops, or industrial settings where air conditioning may not be practical.

10) Easy Maintenance

Maintaining evaporative coolers is relatively simple. Regular cleaning of the filter pads and ensuring proper water drainage are the primary maintenance tasks. They do not require complex servicing or expensive professional maintenance.

11) Quieter Operation

Evaporative coolers tend to operate more quietly than traditional air conditioning units. Their cooling mechanism involves the circulation of air and water, resulting in reduced noise levels and a more peaceful environment.

Step 1: Contact DGB Refrigeration Heating & Cooling

To ensure a thorough cleaning process and expert maintenance, it is advisable to seek professional assistance. DGB Refrigeration Heating & Cooling, a reputable company specializing in evaporative cooler services, can provide the expertise and knowledge required. You can reach out to us at 03 7038 6918 to schedule an appointment or discuss your specific needs.

Step 2: Safety First

Power Off and Drain the Unit Before starting any cleaning procedure, it’s essential to turn off the power supply to the evaporative cooler for safety reasons. Additionally, drain the unit to remove any remaining water. Proper drainage helps prevent mold and mildew growth, ensuring a clean and efficient cooling system.

Step 3: Inspect and Remove Debris

Carefully inspect the filter pads for any visible debris or dirt accumulation. Using a stiff brush or a vacuum cleaner with a soft brush attachment, gently remove the loose particles from the pads. Pay attention to both the front and back sides of the pads, as contaminants can accumulate on either surface. You must also closely inspect the filter pads to ensure there is no mold or mildew. In case your filter pads turn out to be moldy, it would be best to replace them immediately as it can terribly impact the well-being of you and your loved ones.

Step 4: Remove Grime & Dirt

Prepare the Cleaning Solution Create a cleaning solution by mixing warm water with mild dish soap in a bucket. The soapy water will effectively remove grime and dirt from the filter pads. For cases where mineral deposits are present, you can create a separate solution using water and white vinegar. The acidic properties of vinegar help dissolve mineral deposits and eliminate odors.

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Step 5: Scrub the Filter Pads

Using a kitchen sponge or a soft brush, dip it into the soapy water solution and gently scrub the filter pads. Ensure that you cover the entire surface area of each pad, paying extra attention to areas with visible dirt or stains. For areas with mineral deposits, soak the affected portion in the water-vinegar solution for approximately two hours to facilitate the cleaning process.

Step 6: Rinse and Dry

After scrubbing the filter pads thoroughly, rinse them with clean water to remove any soap residue. It is crucial to remove all traces of soap to prevent potential damage to the pads and ensure clean, fresh air circulation. Once rinsed, allow the filter pads to air dry completely before reinstalling them.

Step 7: Reinstall and Perform System Check

Once the filter pads are dry, carefully reinstall them in the evaporative cooler. Ensure they are properly aligned and securely in place. Take this opportunity to inspect other components of the cooling system, such as the fan belt, and the presence of any cracks or leaks. If necessary, consult DGB Refrigeration Heating & Cooling for professional repairs or maintenance.

Step 8: Professional Maintenance and Expert Assistance

While cleaning the filter pads is an essential part of regular maintenance, seeking professional assistance from DGB Refrigeration Heating & Cooling is highly recommended. We possess the expertise and specialized tools to thoroughly clean and maintain your evaporative cooler system, including intricate components like ductwork. By availing their industry-leading services, you can enjoy a clean, efficient, and long-lasting cooling system.


Cleaning the evaporative cooler filter pads is a vital task to ensure the longevity and optimal performance of your cooling system. By following the step-by-step guide provided in this blog and seeking professional assistance from DGB Refrigeration Heating & Cooling when needed, you can enjoy the clean, cool air while avoiding potential issues like mold and bacteria growth. Regular maintenance is key to preserving the efficiency and functionality of your evaporative cooler, ensuring comfort during the hot summer months. Contact DGB Refrigeration Heating & Cooling at 03 7038 6918 to schedule an appointment or learn more about our exceptional evaporative cooler services.


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