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Best Swamp Cooler Pads For Optimal Airflow

Studies show that failing to replace worn-out swamp cooler pads can lead to a significant decline in cooling efficiency. This translates to an uncomfortably hot home and higher electricity bills. 

To keep your home cool and your cooler working well, it’s important to choose the right pads. If you’re searching for the best pads, your search ends here. Consider these important points before we discuss the top options:

  • Material: If you are on a budget, you may consider Cellulose pads. However, they will need frequent replacement (1-2 seasons). Comparatively, Aspen pads last longer (3-5 seasons), while Synthetic media pads are best for humid areas (5+ seasons). 
  • Thickness: Consider thicker pads, around 4 inches or more for dry areas. And if you are in humid places, then thinner pads, ideally 2-3 inches are better for maintaining airflow.
  • Precision Sizing: Even a small difference in pad size can reduce cooling efficiency by 10%. Measure your existing pads or check your cooler’s manual for exact dimensions to ensure a perfect fit and optimal airflow. 

In the next parts of this article, we will look at the best swamp cooler pads you can find. Even though you can buy these pads in many stores, sometimes they are not reliable. We have selected the best ones from brands we trust. Please check our “Buying Guide” for advice on how they work and what to think about before buying.  

Best Swamp Cooler Pads Chart

Swamp Cooler PadsSizeThicknessMaterialBuy Now
Lennox Swamp Cooler Pad30 x 10 Inches1.75  InchesFactory original OEM materialCheck On Amazon
Honeywell Swamp Cooler Pad13 x 10.25 Inches1.5  InchesAluminumCheck On Amazon
DIAL Swamp Cooler Pad30 x 36 Inches1.2  InchesFoamed PolyesterCheck On Amazon
MasterCool Swamp Cooler Pad28.28 x 41.25 Inches8  InchesPremium CELdek materialCheck On Amazon
Aspen Swamp Cooler Pad29 x 29 Inches1.5  InchesPure Aspen Snow-Cool excelsiorCheck On Amazon
PPS Swamp Cooler Pad32 x 36 inches1 InchAspenCheck On Amazon

Best Swamp Cooler Pads Reviews

1. Lennox Swamp Cooler Pad

Lennox Swamp Cooler Pad

Lennox is a renowned name in the home appliance industry, known for its high-quality products and accessories. Leading our selection is the Lennox Healthy Climate Water Panel Evaporator. This swamp cooler pad, like other Lennox products, is highly regarded for its reliability and effectiveness. It measures 30 x 10 inches and is 1.75 inches thick, providing superior moisture absorption and evaporation capabilities. 

Made from the original equipment manufacturer (OEM) material, it ensures your cooler performs as if it were new once installed. Additionally, it’s designed to fit a range of popular cooler models, including HCWB3-17, HCWB3-17k, HCWB3-17A, and HCWB3-17AK, ensuring easy compatibility and installation.

Best Features

  • Measures about 30 x 10 inches in size
  • It is nearly 1.75 inches thick
  • Made up of factory original OEM material
  • Compatible with HCWB3-17, HCWB3-17k, HCWB3-17A, and HCWB3-17AK models


  • Most popular and trusted choice for a swamp cooler pad
  • Compatible with various models of a swamp air cooler
  • Comparatively budget choice than a few other options


  • A few options are a bit cheaper in comparison

Buy Now From Amazon

2. Honeywell Swamp Cooler Pad

Honeywell Swamp Cooler Pad

Honeywell is a well-known brand that offers a variety of home accessories and climate control systems, including HVAC controllers. The Honeywell HC26A1008 replacement swamp cooler pad, which ranks second on our list, is an affordable option compatible with the HE260 and HE360 cooler models. These models are widely recognized and chosen by many users for their cooling needs. To ensure compatibility, your cooler should accommodate pads measuring 13 x 10.25 inches. This pad is 1.5 inches thick, making it suitable for areas that are dry and warm.

Beyond cooling and creating a comfortable indoor atmosphere, this swamp cooler pad also plays a role in improving air quality. It helps remove dust, bacteria, viruses, and other harmful substances from the air, contributing to a healthier and cleaner environment in your home. Moreover, it is designed for durability, featuring an aluminum base beneath the pad material to enhance its reliability and lifespan.

Best Features

  • Measures about 13 x 10.25 inches in size
  • It is nearly 1.5 inches thick
  • Made up of Aluminum base with coating
  • It also eliminates contaminants and harmful elements in the air


  • Cheapest option for a swamp cooler pad
  • Size is pretty good for basic applications
  • Compatible with HE260 and HE360 cooler models


  • Compatibility might be an issue for some buyers

Buy Now From Amazon

3. DIAL Swamp Cooler Pad

DIAL Swamp Cooler Pad

Dial offers a budget-friendly yet high-quality choice in our selection of the best swamp cooler pads with the DIAL 3074 Dura Cool pad. This product, known for its effective domestic and personal care range, features a foamed polyester construction. This synthetic material is particularly efficient at preventing organic growths like fungus or algae on the pads, ensuring cleaner operation.

The DIAL 3074 pad is distinguished by its dense fiber structure, which enhances its ability to absorb moisture, contributing to its longevity compared to other pads in a similar price bracket. The fine fibers also serve a dual purpose as an air filter, ensuring the air that passes through is clean, pure, and free of odors. Dial guarantees that this cooler pad will not shrink, sag, or show wear and tear with extended use, making it a reliable option.

Best Features

  • Measures about 30 x 36 inches in size
  • It is nearly 1.2 inches thick
  • Made up of foamed polyester
  • Dense fiber design for better performance


  • Pretty good option in terms of design and performance
  • Comparatively more efficient than standard swamp cooler pads
  • Comparatively larger option than other choices


  • Relatively difficult to wash and clean

Buy Now From Amazon

4. MasterCool Swamp Cooler Pad

MasterCool Swamp Cooler Pad

For those in need of a thicker swamp cooler pad, the Champion Cooler 110133-2 presents a noteworthy option. This pad stands out as the thickest choice on our list, boasting nearly 8 inches of thickness, and measures approximately 28.28 x 41.25 inches. Its significant thickness contributes to a high water absorption rate, enhancing the efficiency of the cooling process.

Constructed from high-quality CELdek material, the Champion Cooler 110133-2 pad is designed to deliver exceptional performance. Despite its substantial thickness, it supports an airflow rate of about 6400 CFM, making it suitable for use with high-capacity swamp air coolers. The durability is further accentuated by its strong and rigid structure, ensuring it withstands wear and tear over time. Additionally, its multi-layer design enhances its effectiveness across a broad spectrum of cooling needs, making it a versatile and efficient choice for those requiring a thicker swamp cooler pad.

Best Features

  • Measures about 28.28 x 41.25 inches in size
  • It is nearly 8 inches thick
  • Made up of Premium CELdek material
  • Certified by Greenguard


  • One of the most reliable choices for a swamp cooler pad
  • Strong and durable design with the highest thickness on this collection
  • Maintains about 6400 CFM airflow


  • Not the best option for basic swamp cooler models

Buy Now From Amazon

5. Aspen Swamp Cooler Pad

Aspen Swamp Cooler Pad

The PPS #46IP Aspen Cooler Pad by Aspen Snow Cool is a premium selection in our swamp cooler pad range, notable for its superior material and size. Measuring 29 x 29 inches and 8 inches thick, it matches our previous high-thickness choice. This pad is crafted from high-quality Aspen Snow-Cool excelsior, known for improving cooler air output by nearly 7% and offering enhanced durability.

Its design features an open cellular structure, allowing for increased airflow and water absorption, which boosts the humidification process. This efficient operation requires less water, lowering operating costs and enabling use with a less powerful motor. Additionally, the pad’s biodegradable stitching prevents dry and hot spots, further enhancing its performance and reliability.

Best Features

  • Measures about 29 x 29 inches in size
  • It is nearly 1.5 inches thick
  • Made up of pure Aspen Snow-Cool excelsior
  • Open cellular structure for better airflow


  • Exclusive Grid-Flo stitching to avoid further problems
  • It is one of the tickets swamp cooler pads
  • Made up of a high premium material


  • Very expensive choice for domestic applications

Buy Now From Amazon

6. PPS Swamp Cooler Pad

PPS Swamp Cooler Pad

Concluding our selection of the best swamp cooler pads, we introduce another affordable option from PPS Packaging. Known for their diverse product range, PPS Packaging offers the Aspen Cooler Pad as the most cost-effective choice on our list. Despite its lower price, this pad doesn’t compromise on the quality and effectiveness of Aspen material found in higher-end models.

This larger pad measures 32 x 36 inches but is only 1 inch thick, making it ideal for low-powered swamp coolers. Like the previous premium option from the same brand, the PPS Packaging Aspen Cooler Pad enhances cooler air output by nearly 7% and is compatible with low-powered motors. Its design allows for greater airflow, resulting in quicker cooling performance, particularly suitable for smaller spaces. This makes the pad not only an economical upfront purchase but also an option that contributes to reduced operating expenses for your swamp cooler.

Best Features

  • Measures about 32 x 36 inches in size
  • It is nearly 1 inch thick
  • Overall lower running costs of the cooler
  • Made up of Aspen material


  • Brings the benefits of Aspen material
  • Quite a large option for a swamp cooler pad
  • Each cooler pad is individually packed and shipped


  • It is not as thick as most other options for a swamp cooler pad

Buy Now From Amazon

Buying Guide For The Best Swamp Cooler Pads

When selecting the best swamp cooler pads for your evaporative cooler, it’s crucial to consider several key factors that will influence the efficiency, performance, and longevity of your cooling system. Here’s a comprehensive buying guide to help you make an informed decision:

1. Size

The size of the swamp cooler pad is crucial for ensuring optimal airflow and cooling efficiency. It’s essential to choose a pad that fits perfectly within your cooler’s frame to prevent air leaks and maintain maximum cooling power. Measure the height, width, and depth of your cooler’s pad area accurately before making a purchase. An ill-fitting pad can significantly reduce the effectiveness of your swamp cooler.

2. Thickness

The thickness of the swamp cooler pad directly impacts its water absorption and evaporation rates, which in turn affects cooling performance. Pads generally range from 1 to 8 inches thick. Thicker pads have a greater surface area for evaporation, offering enhanced cooling but may require a stronger fan to pull air through.

3. Material

Swamp cooler pads are made from a variety of materials, each offering different benefits:

  • Aspen: Natural aspen fibers are a traditional choice, known for their high water absorption and cooling efficiency. They are environmentally friendly but may require more frequent replacement.
  • Cellulose (Honeycomb): These pads feature a honeycomb design that enhances water absorption and evaporation rates, leading to improved cooling performance. They are more durable and efficient than aspen but can be more expensive.
  • Synthetic Fibers: Synthetic materials are designed for durability and resistance to mold and mildew. While they may not cool as efficiently as natural aspen or honeycomb pads, they offer the advantage of longevity and less frequent maintenance.

4. Performance

The performance of a swamp cooler pad is influenced by its ability to absorb and evaporate water quickly. High-performance pads will provide a significant drop in temperature, enhancing the comfort of your environment. Factors affecting performance include material, design (such as honeycomb structures), and thickness. Consider your local climate and the specific needs of your space to select a pad that will deliver the best cooling performance.

5. Installation and Maintenance

  • Ease of Installation: Some pads are designed for easy installation, which can be a significant advantage for DIY enthusiasts. Look for pads that can be easily cut to fit or are available in pre-cut sizes that match your cooler’s specifications.
  • Maintenance Requirements: The longevity and performance of your swamp cooler pads can be greatly affected by maintenance. Aspen pads, while effective, may require more frequent cleaning and replacement due to debris buildup. Cellulose and synthetic pads are more resistant to deterioration but should still be inspected and cleaned regularly to maintain optimal performance. Always follow the manufacturer’s guidelines for cleaning and maintenance to ensure the longevity of your pads.

Swamp Cooler Pads FAQS

1. What kind of pads work best in a swamp cooler?

Ans: The most common option for the material of a swamp cooler pad is Aspen. These pads are typically made up of wood fibers and thus offer a pretty great moisture absorption capacity. And still, these options are comparatively cheaper than most of its competitors. Other popular options for swamp cooler pads are designed with materials like cellulose, PVC, or mineral wool.

2. How often should swamp cooler pads be replaced?

Ans: There are many different factors that can affect the frequency of replacement for your swamp cooler pads such as cooler usage, surrounding conditions, and the maintenance procedure followed for cleaning the cooler pads. It also varies for different types of materials used for a swamp cooler pad. For example, an Aspen swamp cooler pad needs to be replaced about once every year whereas cellulose or synthetic options can survive much longer with proper cleaning and maintenance.

3. Do you need to keep a window open when running a swamp cooler?

Ans: Proper airflow is one of the key requirements of a swamp cooler pad. Without proper airflow and fresh air intake, the cooler will simply make the room overly humid and somewhat unbearable after a few hours. So unlike an air-conditioned room, you will need to keep a window or door open if you are using a swamp air cooler. It also helps a lot if you are placing the cooler near a window as it can intake more volumes of fresh air without any problem. Blocked airflow can also cause an annoying odor in the room which is typically caused by reused water.

4. Is It OK to run a swamp cooler without water?

Ans: Though swamp coolers or evaporative coolers rely on the evaporation of water to maintain the humidity levels in the room, there are a lot of options on the market that offer dual functionality. Almost all options allow you to use the swamp cooler without turning on the water supply. In such a case, you will get dry and room-temperature air from the cooler, which is enough in some cases. But, you need to make sure that the motor of the swamp air cooler is also turned off if there is no water in the storage tank. Otherwise, the motor would run dry and burn out before you can take action.

5. Do swamp coolers work in 100-degree weather?

Ans: While swamp air coolers are pretty much what you need on normal summer days, they might not be as effective in the peak summer time, when the temperature reaches up to 100 degrees. If the surrounding air is too hot and dry, there is little a swamp cooler can do to offer a change. In such a case, you will need a portable or fixed air conditioner to ensure a satisfying and comfortable environment inside your house.


We hope this guide has given you a clear picture of swamp cooler pads, offering detailed reviews and insights into their features, pros, and cons. Armed with this information, you should be able to compare different options within your budget and make a well-informed choice.

If you’re new to swamp cooler pads, our buying guide would have provided valuable information to help you select the right one for your needs. This is crucial for ensuring your swamp cooler operates efficiently. In addition to our top picks, if you’re still unsure about what to purchase or need some guidance, here are our three best recommendations:

  • Among the options, the Honeywell Swamp Cooler Pad stands out for its affordability and quality. The Honeywell HC26A1008 Replacement Humidifier Pad, designed for HE260 and HE360 air coolers, measures 1.5 x 13 x 10.25 inches and is crafted from the original OEM material, ensuring performance comparable to new Honeywell pads.
  • For those requiring a more robust solution, the MasterCool Swamp Cooler Pad is an excellent choice. It is an 8-inch thick pad with a high moisture absorption rate and maintains an airflow speed of up to 6400 CFM. Made from durable premium CELdek media, it promises reliable and efficient cooling.
  • Lastly, we recommend the Lennox Swamp Cooler Pad for its proven performance and compatibility with a range of air coolers, including HCWB3-17 and similar models. Measuring 30 x 10 inches, this pad is designed as a replacement for the Lennox Healthy Climate humidifier, ensuring top-notch efficiency and effectiveness. 

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