Top 8 Best Evaporative Portable Air Coolers of 2024

Evaporative portable air coolers, also known as swamp coolers, are an energy-efficient and eco-friendly alternative to traditional air conditioning systems. Unlike AC units that rely on refrigerants and high electricity consumption, Best Evaporative Portable Air Coolers work by drawing in warm air and passing it over water-soaked pads. As the water evaporates, it cools the air, making it ideal for dry climates. These coolers not only reduce your electricity bills but also add moisture to the air, making them a popular choice for those living in arid regions.

In this article, we’ll explore the eight best evaporative portable air coolers currently available on the market. Each cooler has been selected based on its performance, portability, ease of use, and additional features. Whether you’re looking for a powerful cooler for your patio, a compact unit for your office, or a high-performance option for larger spaces, there’s something on this list for every need. Keep reading for an in-depth review of each product to help you make an informed decision when shopping for the perfect evaporative cooler.

Top Picks Evaporative Air Coolers

1. Hessaire MC18M Portable Evaporative Cooler

Overview

The Hessaire MC18M is a compact, highly portable evaporative cooler with a water tank capacity of 4.8 gallons and airflow output of 1,300 CFM, making it ideal for cooling spaces up to 500 square feet. With its compact size, it’s easy to move and position wherever cooling is needed, indoors or out.

Key Features

• Water Tank Capacity: 4.8 gallons, which allows for several hours of continuous cooling.
• Cooling Area: Up to 500 square feet, perfect for medium-sized rooms or patios.
• Airflow: 1,300 CFM provides ample cooling power.
• Mobility: The four 360-degree rotating caster wheels make it easy to move.
• Adjustability: Adjustable vents allow you to direct airflow where it’s needed.

Pros

• Efficiency: The Hessaire MC18M offers high efficiency in dry climates, providing significant cooling at a fraction of the cost of traditional air conditioning.
• Portability: Its lightweight build and wheels make it easy to move, ideal for use on patios, garages, or smaller rooms.
• Continuous Use: Can be hooked up to a garden hose for uninterrupted operation.

Cons

• Limited Features: It lacks some advanced features like a remote control or digital display.
• Not Suitable for Humid Climates: Like all Best Evaporative Portable Air Coolers, it performs poorly in humid areas as it relies on water evaporation to cool the air.

In-Depth User Insights

Users have consistently praised the Hessaire MC18M for its portability and efficient cooling in dry environments. It’s favored by those who want a unit that can easily be moved between indoor and outdoor spaces. However, it can require frequent refills if not hooked up to a hose for continuous water supply.

Maintenance

Cleaning the water tank and pads regularly is important to prevent mold or bacteria buildup, particularly if used frequently. Fortunately, it’s simple to maintain thanks to the detachable components

2. Evapolar evaCHILL Personal Air Cooler

Overview

This compact personal cooler is designed for small spaces, cooling up to 45 square feet. The Evapolar evaCHILL is USB-powered and highly portable, making it ideal for individuals who need a small, energy-efficient cooling solution for personal use, such as on a desk or bedside table.

Key Features

• Water Tank Capacity: 800 milliliters, enough for up to 9 hours of cooling.
• Power Source: USB-powered, making it ideal for travel or use with a computer.
• Cooling Area: 45 square feet, making it perfect for personal spaces.
• Energy Consumption: Consumes only 7.5 watts, which is highly efficient.

Pros

• Portability: Its compact design and USB power option make it easy to move and set up anywhere.
• Energy Efficiency: It uses very little power, making it cost-effective to run.
• Quiet Operation: Produces minimal noise, making it suitable for use while sleeping or working.

Cons

• Limited Cooling Area: It is only effective for cooling small areas, so it’s not suitable for rooms or outdoor spaces.
• Small Water Tank: The 800ml tank needs frequent refilling if used continuously.

In-Depth User Insights

Users love the portability and simplicity of this cooler, especially for use in small offices or as a personal cooling device at home. However, some find the water tank a bit small and needing refills more often than expected, especially in very dry conditions.

Maintenance

The water tank and cooling pads require occasional cleaning to ensure effective cooling and prevent the buildup of bacteria. Its low-maintenance design and easy-to-remove parts are ideal for busy users

3. Honeywell CO48PM Outdoor Portable Evaporative Cooler

Overview

Designed for larger spaces, particularly outdoor areas, the Honeywell CO48PM features a high airflow of 1,700 CFM and a 10.6-gallon water tank, making it ideal for cooling spaces up to 610 square feet.

Key Features

• Water Tank Capacity: 10.6 gallons with the option for a continuous water supply.
• Cooling Area: 610 square feet, suitable for large rooms or patios.
• Airflow: 1,700 CFM provides powerful cooling, even outdoors.
• Safety Features: Includes a GFCI plug for safe operation in damp environments.

Pros

• Powerful Cooling: It cools large spaces effectively, both indoors and outdoors.
• Durability: Sturdy design with high-quality materials, making it great for outdoor use.
• Continuous Water Supply: Can be hooked up to a hose for extended use without manual refilling.

Cons

• Bulky: Its large size can make it difficult to move indoors, and it lacks a remote control.
• Price: Higher cost than many indoor models, though justified by its capacity and power.

In-Depth User Insights

Users enjoy this unit’s ability to cool large outdoor spaces, particularly on patios or decks. Many appreciate the continuous water supply option for uninterrupted cooling. However, some find the lack of a remote control and the bulky design inconvenient​.

Maintenance

This unit requires regular cleaning of the water tank and pads, especially after outdoor use, to prevent mineral deposits and bacteria growth. The large tank is easy to clean, but outdoor use may require more frequent maintenance​

4. NewAir 470-CFM Portable Evaporative Cooler

Overview

This cooler is designed for small to medium rooms, cooling up to 250 square feet. It features a 470 CFM airflow and a removable water tank for easy refills, along with a sleek design that fits well in modern homes.

Key Features

• Water Tank Capacity: Medium-sized, easy-to-remove water tank.
• Cooling Area: 250 square feet, suitable for bedrooms and offices.
• Airflow: 470 CFM provides moderate cooling for small spaces.
• Remote Control: Comes with a remote for easy operation.

Pros

• Compact Design: Fits well in tight spaces and modern interiors.
• Affordable: Lower price point makes it accessible to most buyers.
• Remote Control: Allows for easy adjustment from across the room.

Cons

• Limited Cooling: Not ideal for large rooms or outdoor use.
• Water Capacity: The medium-sized water tank may require frequent refills during extended use.

In-Depth User Insights

Users praise the NewAir model for its efficiency in cooling smaller spaces. It’s particularly appreciated for its easy-to-remove tank and stylish appearance. Some users, however, wish for a larger water capacity for longer use without refills​.

Maintenance

This cooler is easy to maintain, with a removable water tank and washable filters. Regular cleaning is essential to ensure longevity and optimal performance​.

5. Honeywell 525 CFM Portable Evaporative Cooler

Overview

The Honeywell 525 CFM model is a mid-sized evaporative cooler, ideal for both indoor and outdoor use. It is designed to cool areas up to 350 square feet, making it a versatile choice for medium-sized rooms, garages, or patios. With features like a detachable water tank, remote control, and an ice compartment, this cooler provides a balanced mix of convenience and performance.

Key Features

• Water Tank Capacity: 7.9 gallons, detachable for easy refilling.
• Cooling Area: Up to 350 square feet, making it ideal for mid-sized spaces.
• Airflow: 525 CFM, powerful enough for moderate cooling.
• Additional Features: Ice compartment for enhanced cooling, remote control for ease of use, and a timer function for energy savings.

Pros

• Versatile: Suitable for both indoor and outdoor use, making it flexible for different environments.
• Convenient Design: The detachable water tank and remote control make it easy to use and maintain.
• Good Cooling Performance: It offers reliable cooling for moderate spaces, especially in dry climates.

Cons

• Price: Priced at around $310-$330, it’s more expensive compared to other models with similar cooling capacities.
• Customer Service Issues: Some users have reported difficulty in contacting Honeywell’s customer service for replacement parts, which is frustrating if issues arise​.

In-Depth User Insights

Many users find the Honeywell 525 CFM cooler to be effective in cooling mid-sized rooms. It’s particularly appreciated for its ice compartment, which can boost cooling during extremely hot weather. However, some users have expressed concerns about the high price compared to other swamp coolers that offer similar performance at lower costs​.

Maintenance

The detachable water tank makes it easy to refill and clean, but regular maintenance is required to prevent mineral buildup and maintain performance. Cleaning the water tank and filter regularly will ensure a longer lifespan for this unit

6. Hessaire MC61M 5,300-CFM Evaporative Cooler

Overview

The Hessaire MC61M is one of the most powerful Evaporative Portable Air Coolers on the market, with an impressive airflow of 5,300 CFM. This model is ideal for large spaces, cooling areas up to 1,600 square feet. It’s perfect for industrial settings, large living rooms, or outdoor areas, offering fast and efficient cooling for hot and dry climates.

Key Features

• Water Tank Capacity: 14.6 gallons, large enough for extended cooling sessions.
• Cooling Area: Up to 1,600 square feet, suitable for large rooms or outdoor use.
• Airflow: 5,300 CFM, making it one of the most powerful Evaporative Portable Air Coolers available.
• Mobility: Four durable caster wheels make it easy to move despite its size.

Pros

• Powerful Cooling: This cooler is capable of cooling very large areas, making it suitable for industrial or commercial use.
• Continuous Water Supply: It can be hooked up to a garden hose for continuous operation, minimizing the need for refills.
• Durability: Built with robust materials to handle outdoor and industrial environments.

Cons

• Expensive: Priced around $600, it’s one of the more expensive Evaporative Portable Air Coolers on the market.
• Heavy and Bulky: Its large size makes it harder to move around, despite having wheels.

In-Depth User Insights

Users appreciate the sheer power of the Hessaire MC61M, particularly in large and open spaces where traditional air conditioning might not be practical. It’s a popular choice for warehouses, workshops, and large outdoor patios. However, the size and weight of the unit can be a challenge for some users, especially if frequent movement is required​.

Maintenance

Due to its size and power, the MC61M requires more frequent maintenance than smaller units. Regular cleaning of the water tank, pads, and external components is necessary to maintain its cooling efficiency

7. Luma Comfort EC111B Evaporative Air Cooler

Overview

The Luma Comfort EC111B is a stylish and compact evaporative cooler designed for small to medium rooms. It cools areas up to 250 square feet and comes equipped with an ice pack and three fan speed settings. This model is ideal for home use, with a modern design that fits seamlessly into most indoor spaces.

Key Features

• Water Tank Capacity: 1.76 gallons, with the option to add ice for enhanced cooling.
• Cooling Area: 250 square feet, making it suitable for small rooms and offices.
• Airflow: Moderate airflow with three fan speed settings.
• Additional Features: Built-in ice compartment, programmable timer, and washable dust filter.

Pros

• Stylish Design: Sleek and modern, it blends well with home interiors.
• Portable: The caster wheels make it easy to move around the house.
• Dual Functionality: Works as both a cooler and a humidifier, which is useful in dry environments.

Cons

• Limited Coverage: Only cools up to 250 square feet, which may not be enough for larger spaces.
• Small Water Tank: The small water tank requires frequent refilling during extended use.

In-Depth User Insights

The Luma Comfort EC111B is popular for its modern design and quiet operation, making it a great choice for bedrooms or home offices. However, some users note that its cooling power is limited, particularly in larger rooms or when used in areas with high humidity.

Maintenance

Maintenance is straightforward with this model, as it features a washable filter and easy-to-clean water tank. Regular cleaning of the tank and filter will help maintain the unit’s cooling efficiency and extend its lifespan.

8. Big Ass Fans Cool Space 200 Portable Evaporative Cooler

Overview

The Big Ass Fans Cool Space 200 is designed for high-performance cooling in large indoor and outdoor spaces. It offers 1,800 CFM of airflow and can cool areas up to 800 square feet. It’s a premium model that’s ideal for those who need powerful cooling for commercial or large residential spaces.

Key Features

• Water Tank Capacity: 11 gallons, allowing for extended use without frequent refills.
• Cooling Area: Up to 800 square feet, suitable for large rooms or outdoor areas.
• Airflow: 1,800 CFM, providing powerful cooling for larger spaces.
• Durable Design: Built for tough environments with durable materials and a heavy-duty fan system.

Pros

• High Performance: Strong cooling capacity, ideal for large, open spaces.
• Durability: Built to last with robust materials, making it a great investment for long-term use.
• Long Operation Time: The large water tank and powerful fan allow for hours of continuous cooling.

Cons

• Expensive: At around $1,100, it’s one of the more expensive portable Evaporative Portable Air Coolers available.
• Bulky: The size and weight can make it difficult to move frequently, despite having wheels.

In-Depth User Insights

The Big Ass Fans Cool Space 200 is widely regarded as one of the best options for those who need serious cooling power. It’s often used in commercial settings, such as workshops and large patios, where traditional air conditioning would be impractical or too costly. However, the high price point means it’s a significant investment​.

Maintenance

Regular maintenance is necessary due to the size and complexity of the unit. Cleaning the water tank and pads is essential to avoid mineral deposits and ensure optimal cooling performance.

What to Look For

When choosing the best evaporative portable air coolers, there are several factors to consider to ensure you get a model that meets your needs. Below are some key aspects to look for when evaluating different models:

1. Cooling Capacity

• CFM (Cubic Feet per Minute): The cooling power of an evaporative cooler is measured in CFM. A higher CFM means more air is being moved, which is important for larger spaces. Estimate the CFM you need by multiplying the room’s square footage by its ceiling height, then dividing by two. For example:
  • Small rooms (up to 300 sq. ft.) need around 700-1,000 CFM.
  • Medium rooms (up to 500 sq. ft.) require 1,000-2,000 CFM.
  • Large spaces (500+ sq. ft.) need more than 2,000 CFM.

2. Water Tank Capacity

• Larger tank sizes allow for extended cooling without frequent refills. If you want to run the cooler for several hours without maintenance, look for units with a water tank capacity of 10 liters or more. Small, portable units may have tanks as small as 1-2 gallons, while larger models can hold 10 gallons or more.

3. Portability and Size

• Wheels and Handles: Since you’re looking for a portable air cooler, it should have sturdy wheels and a handle for easy movement from room to room.
• Compactness: Make sure the cooler fits the space you plan to use it in, especially if you have limited room.

4. Energy Efficiency

• Power Consumption: One of the main advantages of Evaporative Portable Air Coolers is that they consume far less energy than traditional air conditioners. Check the wattage of the unit to ensure it aligns with your energy-saving goals. Many units range between 100-300 watts, much less than AC units.

5. Adjustable Fan Speeds and Modes

• Variable Speed Settings: Most portable air coolers have at least 3 speed settings (low, medium, high), but some models offer more customized settings like sleep or natural modes for optimal comfort. This helps you control the airflow intensity.
• Oscillation: Some coolers have oscillating louvers or vents that distribute cool air more evenly throughout the room.

6. Ease of Maintenance

• Removable Water Tanks and Filters: The easier it is to remove and clean the water tank and filters, the more convenient it will be to maintain the unit over time. Look for models that have easy-access tanks and washable or replaceable filters to ensure smooth operation.

7. Noise Level

• Quiet Operation: If you plan to use the evaporative cooler in a bedroom, office, or living room, noise level is an important factor. Units typically produce between 40 to 70 decibels, with quieter models being preferable for work or sleep environments.

8. Additional Features

• Remote Control: A remote control lets you adjust the fan speed, temperature, and settings without needing to be next to the cooler.
• Timer Function: A programmable timer can be very useful if you want the cooler to automatically turn off after a set period.
• Humidifier Function: Some air coolers also double as humidifiers, which can be an added benefit in dry climates.

9. Price

• Budget vs. Features: Evaporative air coolers can range from $100 to $500, depending on the size, brand, and extra features. Determine your budget and find a model that offers the best combination of performance and features within that range.

10. Climate Suitability

• Relative Humidity: Evaporative Portable Air Coolers work best in dry climates (humidity levels of 60% or lower). If you live in a region with high humidity, an evaporative cooler may not be as effective, and you may want to consider a different type of cooling system.

Care and Maintenance

Proper care and maintenance of your evaporative portable air cooler will ensure it runs efficiently, prolong its lifespan, and keeps the air in your space clean and cool. Here’s a guide on how to care for and maintain your cooler effectively:

1. Regular Cleaning of the Water Tank

• Frequency: Clean the water tank every 1-2 weeks, especially during periods of heavy use.
• How to Clean: Empty the water tank and wash it with mild soap and water. You can also use a solution of water and white vinegar or bleach (use only a few drops) to prevent bacterial growth and odors. Rinse thoroughly to remove any residue before refilling.

2. Clean or Replace Cooling Pads

• Frequency: Every one to three months, depending on usage and water quality. If you use hard water, mineral deposits will build up faster, requiring more frequent cleaning or pad replacement.
• How to Clean: For cleaning, remove the pads and soak them in a solution of water and vinegar or a commercial descaler to dissolve mineral deposits. Rinse and dry before reinstalling.
• Replacement: Cooling pads will wear out over time and should be replaced annually or as specified by the manufacturer. Look for signs of wear like reduced airflow or if the pads are crumbling.

3. Descale the Unit (Mineral Build-up Prevention)

• Why: Mineral build-up, especially in areas with hard water, can clog the cooling pads and reduce efficiency.
• How to Prevent: Use distilled water if possible or add a water softener to the tank. For descaling, periodically clean the water reservoir, cooling pads, and internal parts using a descaling solution.
• How Often: Do this every 1-2 months or whenever you notice mineral scaling.

4. Check and Clean the Air Filter

• Frequency: Check and clean the air filter every 1-2 weeks.
• How to Clean: Remove the filter and rinse it under cold water. Let it dry completely before placing it back in the cooler. If the filter is damaged or heavily clogged, replace it to ensure optimal airflow and air quality.

5. Drain and Dry When Not in Use

• When: Whenever you won’t be using the cooler for an extended period, such as at the end of the season.
• How to Drain: Drain the water tank completely to prevent mold or bacteria growth. After draining, wipe down the inside of the tank with a dry cloth and allow it to air dry before storing.
• Storage: Store the unit in a cool, dry place to avoid damage to the internal components and to prevent mold buildup.

6. Inspect Moving Parts (Fans and Oscillating Louvers)

• What to Check: Make sure the fan blades and oscillating louvers are free of dust and debris. Dust accumulation can reduce performance and make the cooler noisier.
• How to Clean: Use a soft brush or vacuum with a brush attachment to gently clean these parts. For stubborn dirt, use a damp cloth to wipe them down.

7. Monitor for Leaks

• Where to Look: Check around the water tank, hose connections, and the area where the cooling pads meet the water supply.
• What to Do: If you notice water leaks, inspect the seals and connections. Tighten any loose components or replace worn-out seals to prevent leaks.

8. Seasonal Deep Cleaning

• When: At the beginning and end of each cooling season.
• Steps:
  1. Disassemble the unit, including the cooling pads, water tank, and air filter.
  2. Soak and scrub each part with a vinegar or mild soap solution.
  3. Clean the housing and vents with a damp cloth to remove dust.
  4. Reassemble the unit after all components are fully dry.

9. Water Management Tips

• Use Clean Water: Always fill the water tank with clean, fresh water to prevent dirt and bacteria from entering the cooler.
• Avoid Stale Water: Empty the water tank if you don’t plan to use the unit for more than a couple of days. Stale water can become a breeding ground for bacteria and mold.
• Water Treatment Tablets: Consider using water treatment tablets (available for Evaporative Portable Air Coolers) to prevent algae, bacteria, and odors.

10. Check the Float Valve (if applicable)

• Some larger Evaporative Portable Air Coolers have a float valve to maintain water levels automatically. Make sure this valve is functioning properly and isn’t clogged with mineral deposits.

11. Inspect Power Cord and Electrical Components

• What to Do: Regularly inspect the power cord for any signs of wear or damage. If the cord is frayed or cracked, it should be replaced to avoid safety hazards.
• Safety Tip: Always unplug the cooler before performing any maintenance or cleaning.

12. Ensure Proper Ventilation

• Why: Evaporative Portable Air Coolers rely on proper ventilation to function effectively. Make sure there is enough air circulation by keeping windows or doors slightly open. This prevents excess humidity from building up in the room.

13. Test Performance Regularly

• How to Test: Pay attention to how well the cooler is performing. If the airflow decreases, the cooling isn’t as effective, or the unit becomes noisier, it may be time for a deeper cleaning or inspection of internal components like the fan or motor.

Common Maintenance Issues to Watch For

• Reduced Cooling: This could indicate dirty pads, a clogged filter, or mineral buildup on the water tank.
• Unusual Noises: Noisy operation often points to dust on the fan or motor parts or loose internal components.
• Odors: Musty smells may indicate that the unit needs cleaning, particularly the water tank or cooling pads.

Conclusion

When choosing the Best Evaporative Portable Air Coolers, consider the size of the space you need to cool, the features you prioritize (e.g., mobility, remote control, continuous water supply), and the local climate. Each of these coolers offers a unique set of features and advantages, ensuring there’s an option to meet every need, whether it’s a personal desk cooler or a high-powered unit for outdoor use.

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