Hessaire Outdoor Rated Portable Evaporative Swamp Cooler 750 Sq. Ft. Coverage 3 Speed MC37M

Build Time:
10 to 15 Business Days ?
Ships By:
FedEx Ground

Build Time

The product Build Time you see represented on this site is only a typical number of days the manufacturer states it needs to build the product(s) when ordered. Build times are based on business days (excludes weekends & holidays).

The build time does not include the time it will take to ship the order to you (the customer). If an order has multiple items and comes from multiple warehouses, you may receive part of your order on one day, and then receive the remaining part(s) of your order at a later date.

*Please be aware that seasonal demand of certain equipment may cause build times to run longer than what is typical.

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LIST: $399.20
Only $393.39
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The light grey MC37M is the most versatile and efficient cooler on the market. It’s compact and yet packs a powerful blast of cooling with patented winged prop and three panels of high-density rigid media. Take it on the go easily with its four casters. Featuring oscillating louvers to cover a wide area quietly and efficiently. The manual controls make it easy for you to adjust between the four temperature settings  to obtain optimal cooling anywhere you take the MC37M Evaporative Cooler. Outdoor and indoor use approved!

Water Reservoir Capacity 10.3 Gallons

Portable Cooling

Weighing only 45-pounds, the Hessaire MC37M is a lightweight portable evaporative cooler. With durable construction and heavy duty wheels for rolling it’s perfect for tailgating, camping, cookouts, or even indoors in a home office or workshop up to 750 square feet. While similar coolers only feature cooling media on 1 side, this swamp cooler has 3-sided rigid cooling media, dispersing more air throughout your space.

To provide cool air to your space, the unit’s fan pulls air through the 3 cooling pads where the air is cooled through evaporation. This cooler air then exits the unit providing relief from dry and hot air at an economically friendly cost.

Powerful Airflow

Cooling the air is only a part of the process, propelling the chilled air into your space is what brings you needed relief. Specially engineered features from Hessaire allows this mobile evaporative cooler to provide an airflow of 2,200 CFM to your area. The quiet axial fan design allows it to not only provide a strong airflow in a smaller design but also operate more efficiently. Additionally, the oscillating fan moves cool air left to right across the room to ensure that air is evenly distributed, and the fan can be adjusted between 3 fan speeds – Low, Medium, & High – and the cooling level can be selected from 2 settings – Low Cool and High Cool – for a tailored cooling experience.

Convenient Operation

Simple upkeep and easy-to-operate controls make controlling this air cooler a snap. The mechanical control panel on the front of the unit makes controlling the power, fan speeds, cooling levels, and oscillation simple while the continuous and manual fill makes it easier for you to automatically or manually fill the water reservoir tank, based on your preferences and activities.

Additional Features

  • Fits in Small Spaces: Stands just over 3 feet tall and 2 feet wide.
  • Cooling Pad Alerts: The cooling pads on the unit will periodically need to be cleaned. A notification light on the control panel lets you know when maintenance is required.
  • Water Level Indicator: Useful when in manual fill mode, the indicator next to the water fill door displays the current fill level of the tank.
  • Easily Drain: To quickly drain water from the cooler prior to storage, remove the drain plug and tip the unit back.
  • Added Protection: With a GFCI plug, the unit will automatically shut off if it detects water around the plug.
Model No.:
Evaporative Cooling Fans
CFM High:
Polypropylene, steel
Decibels (dBA):
Dimension Inches:
Width: 26" Depth: 18" Height: 36"
Limited Warranty:
1 Year Limited
Watts High:
Weight lbs.:
Notice: Manufacturer's products features and specifications are subject to change without notice.
California Residents: warning WARNING- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.


Ask a Question
  • I just buy this model MC37V does it have to be ventilated near a window or door.The manual say it does to work efficiently.

    It does not have to be close to a window or doorway, but it will help the unit to work more effectively, since it will pull this cooler air in.

  • Does MC37 have to be vented out a window or door?Because manual day it does to work efficiently.

    No. Generally, evaporative cooler fans do not need to be vented like a portable AC unit does.

  • wher can i get a water pump that fit?

    You would need to contact the manufacturer (Hessaire) for this information:  256.734.3003

  • What kind of pads are on this cooler. Are they specify order high dollar pad or a regular aspen pad

    This question about the specific type of pads used will be best asked of the manufacturer Hessaire: 256.734.3003

  • Do you need to vent this

    No. Evaporative cooling fans do not need to be vented.

  • How can i open it to change fan??? Because it's brocked....,????

    You may want to contact the manufacturer (Hessaire) regarding this question: 256-734-3003

  • Where is this made?

    This evaporative cooling unit is made in China

  • I have three questions. First, is this appropriate for a residential 600 sq foot outdoor deck in Long Island and if so, what type of degree drop should I expect. Second, where is it made, and third, what is the cost. Thank you

    If your deck is completely closed in, this unit will help keep the area size cooler (based on an 8' ceiling on the enclosed deck).  If it is an open air deck, it will only cool those standing in front of unit. Temperature drop is based on the amount of humidity in the air. This unit can offer as much as a 15 degree F. temperature drop if humidity is low.