90 Expert Rating

An evaporative cooler (otherwise known as a swamp cooler) is one of the many solutions for air conditioning that you can opt for, and it works in a very simple, energy-efficient manner. It’s based on the principle of the cooling effect that’s created through evaporation, so all you’ll have to do is refill its water reservoir with water now and again for it to work. Evaporative coolers are also far less expensive compared to a typical air conditioner, but this might not be so true if you’re actually looking for the best evaporative air conditioner. If all you need is something that’ll give you a nice breeze on a hot day, then the Hessaire MC37M would be one of the best choices you should consider. Here’s a breakdown of what you can expect from it:

Why We Like It – Hessaire MC37M

The Hessaire MC37M evaporative cooler is an efficient, reliable, and compact cooler that’s got 4 heavy-duty locking casters, an air swing delivery system for automatic oscillation, and a large 10.3-gallon water tank that keeps it running for up to 4 hours.

  • Energy efficient
  • 3 sided, rigid cooling media offer a larger cooling surface area
  • Works great for a large area of up to 950 Square feet
  • Short warranty


There’s not much difficulty in getting the Hessaire MC37M portable evaporative cooler to work, as it only features 1 rotary dial and 3 switches as controls. It’s got a fan that’s got three levels, and oscillating levers that ensure even distribution. It boasts a powerful airflow output of up to 3100 CFM, which allows it to properly service a floor area of up to 950 square feet. While this might be preferable for workshop space or a larger office, the Hessaire MC18M evaporative air cooler is more suitable for smaller spaces, as it has a cooling coverage of up to 500 sq ft.

Energy Efficiency

Choosing to go for an evaporative cooler over any other kind of leading air conditioner means you most probably aren’t as comfortable with the high levels of energy consumption that a typical window unit or even a portable air conditioner, as you’d find with the hOmelabs 12000 BTU portable air conditioner. This is so because it does not rely so much on electricity to produce cool air. Also worth mentioning is that the Hessaire MC37M evaporative cooler for example only has 3 fan speeds to choose from, so it shouldn’t be that much of a drain on your electricity. And, if you’re not sure how long can a portable AC run, you may overwork the unit.


A filter is one of the components that you’ll likely never miss finding on an AC unit, and the Hessaire MC37M also spots one that you’ll need to maintain now and then to ensure that it always performs at an optimum level. This involves making sure that you run the cooler on the fan only for about 30 minutes to dry it out before storage, especially if you don’t intend to use it over winter. This also applies to the Luma Comfort EC111B, despite it being of different size and cooling capacity.


The Hessaire MC37M is backed by the standard 1-year manufacturer’s warranty, but you can expect to use it for well over 10 years before it starts to show any signs of breaking down. In case it does, please try and reach out to the Hessaire customer service team and let them know about your problem, instead of having an unqualified technician tamper with it.


One thing that sets apart the Hessaire MC37M from the Honeywell 525 729CFM evaporative cooler is that it’s got a 3-sided, rigid, high-density cooling pads that provide a larger surface area for generating cooler air. Its 10.3-gallon water tank also allows it to generate cool air for up to 4 hours, but you will be able to hook up both coolers to a hose for continuous water fill, making them last as long as you’d want them to. Just remember to refill the tank as needed. This is a much easier unit to keep, especially since you won’t need to look at various oils for AC compressors.

Hessaire MC37M Wrap Up

Before you make your purchase, you’ll have to clearly understand that evaporative coolers are nothing like AC units. They don’t have an air compressor, as they only rely on the evaporating effect from cooling media to cool down your room. You can go ahead and read through some of the customer reviews that previous customers have left about it to find out what the first-hand experience of using it is like.