Best portable evaporative coolers of 2018 – reviews of ‘swamp’ coolers grade 6 electricity unit

This evaporative cooler has a large, 4.8-gallon water tank, which means you don’t need to refill it very often. You can also hook it up to a garden hose to keep it running, which is particularly helpful. This Hessaire model has an airflow rating of up to 1,300 CFM, which is another reason it can handle large areas so well.

While it can be used to cool your home’s interior, the MC18M is poorly suited for this purpose compared to a rooftop swamp cooler or a smaller unit that can fit in a bedroom without taking up much space. However, it has wheels to help you move it around your workshop. When you find the right spot, you can lock the wheels to keep the cooler from rolling on its own.

The MC18M isn’t the largest model Hessaire makes, but it’s one of the more expensive evaporative coolers we reviewed, costing around $175. Even though it’s more expensive than average, it may be worth the price if you spend a lot of time working in a large workshop or garage. The warranty only lasts one year, like that of every other portable evaporative cooler we reviewed, and it’s disappointing to see such short warranties.

Portable evaporative coolers cost significantly less to install and operate than central air systems, although they have much less cooling power. They’re lightweight and require only water and electricity to function, which means you can put them to use in your home or office. Since these units cool by adding moisture to the air, you should never use one alongside a traditional air conditioner, which cools by removing moisture. In shared spaces, these different types of coolers cancel each other out and waste energy.

Since evaporative coolers don’t have compressors, their power consumption is significantly lower than that of a central air conditioner. On average, evaporative coolers can make the ambient temperature anywhere from 20 to 30 degrees cooler than outside air. These limitations mean evaporative coolers don’t offer the same comfort as portable air conditioners.

Since portable swamp coolers are intended to cool single rooms at a time, you may need to purchase a unit that’s light enough to move from room to room. More sizeable units cool larger areas, but they can be much heavier and harder to move than their lightweight cousins. The best-designed heavyweight units have caster wheels that make them easier to reposition. If you plan on transporting your portable air cooler between your home and office, be sure it’s small enough to fit safely in the trunk or backseat of your car.

For portable evaporative coolers, bigger isn’t necessarily better. At the same time, choosing a unit that’s not big enough can leave you overheated. Evaporative coolers’ cooling efficiency is rated in cubic feet per minute (CFM). All portable swamp coolers have CFM ratings, which makes it easy to figure out if a unit is powerful enough to cool a given area.

To calculate the ideal CFM for your room, first determine how many cubic feet you need to cool. This is done by multiplying an area’s square footage by the ceiling height. For example, a 250-square-foot room with an 8-foot ceiling has a cubic area of 2,000 feet (250 x 8 = 2,000). To find the ideal CFM, simply divide the cubic area in half (2,000 / 2 = 1,000). So, in this example, you would need a portable evaporative cooler with a CFM rating of 1,000.

The best portable swamp coolers often come with extra features that make them more convenient and easy to use. Some models have timers, remote controls and automatic thermostats that turn the unit on or off depending on the room’s temperature. Others include oscillating fans to evenly distribute air, alarms that notify you if the unit is running low on water, and adjustable speeds for gradual or rapid cooling. Some portable evaporative coolers also double as ionizers that remove pollutant particles from the air.