MC37M 3100CFM Evaporative Cooler

Why did you pick this product vs others?: I've only owned this for a few hours, and I feel compelled to leave a positive review. Most of the negative reviews here seem to be from folks who weren't 100% certain what swamp cooler is or how it works. I can understand their disappointment. The reality is, I've spent a lot of time wondering how it could possibly be so difficult to make a product that blew a fan through a moist filter to cool the air. I made home made versions when I was a kid, though I was probably risking electrocution. A swamp cooler will not work in a humid climate. An "portable" swamp cooler like this one that doesn't vent will also have limited functionality indoors even in a well vented area unless you're in a large room. I live in Phoenix, and I have a very good air conditioner in my home. The room where I spend most of my time usually has at least one computer and sometimes as many as three computers running. It gets warm in there, and I don't feel like cooling the whole house just to keep that one room comfortable. Since I only need a couple of degees, I figured I would give the ol' swamp cooler a try. My first purchase was one of those tiny desktop ones, and it didn't do anything except spray water in my face. My second attempt was a larger, floor-sized model. Since the price goes up pretty quickly, I decided to go with a budget option that was on sale. It leaked out of the box and made a massive mess, but for the brief moment that it was running, it did make a noticeable difference in the room temp. I didn't want to deal with that kind of mess again, so my third option was this Hessaire model. After talking with a couple of HVAC guys, it seems to be a consensus that Hessaire makes the best evaporative coolers. I read through a couple dozen of the negative reviews, as there area lot of them on here. Most of them were from folks who were purchasing this item for conditions where it would not function optimally. As I said before, I totally get that frustration. The room I need to cool isn't very large, and that's my biggest complaint with this item. It's too big for the room I want to cool. It works too well, and I'll explain why in a bit. I'm looking to cool a room that is less than 200 square feet by a couple of degrees. I had realistic expectations going in. I knew that I didn't have any place to legitimately vent this, but the other unit did just well enough to convince me that this would work since I only needed a couple of degrees out of it. My one window in this room faces the sun during the time of day I need to use it the most (part of the reason why it gets so warm), so I didn't figure a swamp cooler would be able to keep up with that kind of direct radiant heat in June/July when the sun is most direct. I did try it, and it was no good. I experimented with a few different placements, and the one that works best is to have it near the doorway with a second fan blowout out over the top of it. When I first turned it on, the room had a relative humidity of 22% and an ambient air temp of 82 degrees. Earlier, I mentioned that it worked too weel. On my first attempt, I ran it for five minutes on "high". The air coming out of the front at that humidity was 71 degrees. Within five minutes, it had cooled the ambient room temp to 78 degrees. The problem was that it also increased the relative humidity to 65%. At 65% relative humidity, the air coming out of the front was the same 78 degrees as the ambient room temp. So I know not to use the "high" setting. I had to let the room air out a bit before trying it again. On the second attempt, the relative humidity had gotten down to 40%. I ran it on "low" for about five minutes. It didn't have the same dramatic effect. At 40% humidity, the air coming out of the front was 76 degrees. After five minutes, the relative humidity had only increased to 50%, and the ambient air temp had only degreased to 80. But that was actually comfortable for me with the fan blowing in my direction. So then I turned it to "fan only", and it continued to blow cool air for a good 30 minutes. The room remained comfortable for the remainder of the day. I can't wait to see how it performs tomorrow when I have it turned off all night and the relative humidity drops back into the 20s. The reality, though, is that monsoon is just around the corner, and once monsoon hits, I'll typically be starting with 40% to 50% humidity. There are some negatives. It seems that everyone likes to make these types of units with tanks that are hard to fill. I have a large humidifier as well, and those tanks are removable. A removable tank would make this thing awesome. As it is, it's easier to fill than the last one I bought. It has a side door to pour in water. I use a bucket and a funnel, but since I don't have a bucket anywhere near that large, it takes 3-4 buckets to fill it. It looks like I'll only have to fill it every 3-4 days, though. It is bulky. I really do wish they had a smaller size. The dripping water is actually really loud. It's much louder than the fan. I would definitely not leave this unattended. I also like the fact that there is no remote control. Why does everything need to come with a remote control? As long as you have a good understanding of what a portable swamp cooler is and know that you need one, this is probably the best one you're going to find. Of course, Hessaire makes larger models. Much, much larger models. But given the fact that this one is too big for my room, I would only buy one of the larger models if you have a very large area to cool. Or if you're going to use it outdoors.

This is a great portable cooler. I debated whether to get a whole home cooler or just a portable cooler. I’m glad I went this route as many reviews had varying ratings. Here’s my situation which may help others decide. I have a 2 story home. The upstairs is approximately 900 sq ft and is basically an open floor plan loft which has a bedroom, bathroom, and livingroom area. The downstairs is about 2200 sq ft that has the livingroom and kitchen centrally located with other rooms located around this central location. I explain this because I get great circulation in my home due to the layout. I live in SW Colorado and our typical humidity in the summer season is under 20% and most of my home never gets direct sun for too long in one location. Due to this, my home rarely gets warm until about 3-4pm in the west side. And it’s only gets a bit warm for me until about 8-9pm when the heat breaks due to the sun setting. So with that info, I bought the unit for approximately 900 sq ft. I placed my unit in the western most room and have it facing at an angle towards my centrally located rooms which is the livingroom and kitchen. On Low Setting, this thing easily knocks the heat out on the main floor. I’ve not had to use the Medium or High Settings what-so-ever even in mid to high 90s. I run a window fan upstairs to just pull heat out of the upstairs, run my ceiling fans (2) per normal, and typically I don’t have to open up any windows downstairs. While it’s recommended to run in front of an open door or window, I never do. When it begins to cool off in the evening, I may or may not open up a window while this thing is running. Due to how dry it is out here, typically I do not get any mugginess in the home from running as I do. Your situation may differ depending on humidity. Installation of the wheels was a breeze. The only thing I’d suggest is DO NOT use power tools such as a drill driver and DO NOT over tighten the screws for the wheels. I just hand tightened to snug and had zero issues with stripping out the plastic. You just have to take care. My wheels were loose within the box as the plastic storage cover was not securely screwed down. It was a non-issue for me and I didn’t have to build any wood base. The only real issue I had was the whole thing is molded plastic and my water storage section has a small area that is a tad warped. It was also a non-issue for me. As for loudness... I can hear my tv just fine with it on Low and I’m sure would hear everything just fine on the other settings. When I set a box fan next to it, I can hear the box fan on low over the cooler to give ya an idea. The only part that I find a bit annoying is the oscillating setting. It sounds like plastic rubbing on plastic with just little creaks. I’m sure a little Teflon spray, chain wax spray, or even a little WD-40 could curb that, but I don’t bother with the setting. All in all this is a great cooler and I waited to pick it up when it had a price reduction. It cools pretty much my entire downstairs, with the central house receiving the most benefit and the hallway and rooms that the breeze is directed towards in my home. I’d say it easily knocks the home temp into the mid to low 70s for about 1500 of the almost 2200 square feet I have in the main level and that’s on low. The remaining 700 sq ft is cooler, but not as noticeable. It could be if I ran it on the other settings, but no one is in those rooms or upstairs until after 9pm and my house is opened up at that point since I get temp drops of 25-30+ degrees when that sun sets. If you have my situation, this thing will easily cool your main level of your home beyond it’s minimums depending on your situation. I’ll end this review with this thought, just take into consideration your home layout, your typical humidity, the rooms that actually need cooling during the times it’s uncomfortable for you. Each situation is different. My cooler usually only gets run on 85+ degree days for about 4-6 hours, due to my locale. Once the outside temp drops into the 70s, my home gets opened up. Your situation may vary.

This is a terrific cooling fan, far better and more effective than I had hoped. Very simple to set up, with excellent instructions. It seems like it will have excellent durability, as well. I only deduct one star because it's a little tedious to keep refilling the reservoir throughout the day. It goes through a tank in about 4 hours. Attaching a hose would be pretty questionable inside the house, though of course it would solve the problem outdoors. We are using it as an assist to our central a/c during a pretty serious heatwave. With outdoor temps of 112F to 117F, the a/c just can't keep up. But this cooler is taking the 86 degree air inside, and cooling it down to an almost comfortable 78 -80 in a large room. It is not the recommended set-up, but it is working for us in this heat emergency.

If you live in a dry climate that gets to be on the toasty side, an evaporative cooler might be your ticket to cutting down your electric bill while still getting the relief you need. I live in Idaho, and our summers (especially the entire month of August) tend to be brutal. Being in a desert, there's almost nothing to speak of by way of humidity. An ideal setting, then, to talk about this product. I've used several portable evaporative coolers over the years, and most of them have the same problem: the designers focused on the fan, not the evaporative space. So sure, you've got all of these nifty little features where you can create intermittent breezes, maybe a "silent" mode that barely pushes any air at all, and then a setting which pushes so much air you could create your own jet stream. Of course, the area for water evaporation is tiny, and you rarely get a water pump more powerful than a standard 5V fountain pump. Here's the problem with that: your fan is simply there to move air. Pushing hot air around isn't going to cool much of anything. With the evaporative pads being so small and underpowered, the fan easily overwhelms the very thing you bought a swamp cooler for. With most of these units, the slower the fan runs, the more the evaporative pads can cool... but of course, the smaller the space they'll cool, as well. This Hessaire does not have that problem. As the product photos demonstrate, the entire back of this unit (at least, right down to the water reservoir) is devoted to the cooling pad. Hessaire doesn't skimp on the water pump, either; you'll keep that pad saturated, which is exactly what you want. Now understand that I'm not implying that they neglected the fan--they most certainly did not: its low setting is very likely all you'll need depending on your application. Hessaire's low is their competitor's high. As to how well it works, as I type this, the outside temperature is 94 degrees. We have the Hessaire in our living room in front of our open front window, and it's aimed down a hallway where it circles air through our kitchen, then back into the living room again. The temperature in that hallway is 78 degrees. Yesterday it hit 97 outside, and that hallway never cracked past 80. The living room and kitchen are both at a pleasant temperature. Keep in mind that a swamp cooler's not an air conditioner. If you like your rooms a bit on the chilly side, no swamp cooler ever made will do that for you (unless, of course, it's also chilly outside). Rather than suck humidity out of your living space the way an air conditioner will, swamp coolers will add it. You'll have to rethink everything you know about room cooling when you rely on these things. Keep windows open--if you don't, humidity will build up, and your cooler will stop working as well. In our case, by keeping the windows shut, we'd be adding Florida's humidity to Idaho's heat. No thanks. But now back to this particular cooler. While I mentioned the bells and whistles others put into their coolers, there's little of that here. There's no remote control that you'll never use. There's no timer that'll shut it off after so many hours. There's not even an automatic shut-off in the event you run the pump dry (so be vigilant about keeping the water reservoir full--something you don't have to worry about if you're using the hose feature). Yes, a hose feature. If you're using it to cool a patio or deck, you can hook a standard garden hose to the water reservoir. Inside the unit is a float valve much like you'd see in a toilet tank, and it functions the same: as the water level gets lower, it allows water in from the hose. No muss, no fuss. You've got five power settings--and that's it: High fan with pump; Low fan with pump; High fan only; Low fan only; and Pump only (for saturating your pad before turning on the fan). All of these setting work exactly as expected, and they will keep working until you turn the knob yourself. It's a swamp cooler, and that's all it tries to be. Maybe that's why it works so much better than competitors' Swiss Army Fans. Yes, there's better-looking units out there--but for the money, it's hard to find anything that works better. Or is as easy to maintain. Once you remove the back cover, you have access to everything. Try cleaning the gunk out of the pump of a Frigidaire EC300W-FA evaporative cooler. Go ahead. Have fun. With the Hessaire, it's no problem at all. Hard water deposits building up on the water distributor? A toothbrush and a bit of vinegar sets you free. You can reach it, you can clean it... And you can replace it. Burned out the water pump? You can find them at several places online. One of the kids stuck a pen in the front grill and broke a fan blade? You can find a replacement for that, too. Try to find a replacement evaporative pad for a Luma Comfort evaporative cooler. I'll wait. (No, really. If you find one, let me know.) With the Hessaire, that's no problem, either. A lot of the stuff I just mentioned is available right here on Amazon, or on Hessaire's website. You're covered. So what are you waiting for? If you're in a dry area that has pounding heat, you're going to love the day you received your Hessaire. Maybe mark it on your calendar and celebrate it. It really is that good!

I love this swamp cooler! It lives in the garage so we can sit outside and be nice and cool. Also very convenient as filling with a hose is really the way to go with this thing. It rolls pretty well on flat surfaces and is so easy to use. For reference I live in the Nevada desert so for dry heat it’s great. Also I bought it in mid 2024 so it’s reliable.

My AC for my home went out and needs to be replaced. Even when it worked it only worked on the main level and not in the basement. I started out looking for AC units that do not need to be vented for my basement and purchased some 2 in 1 breezewell units. The first one I got worked pretty well. When my main AC went out I thought well maybe as a temporary fix I oould buy a few more. I had bought a 2 in 1Breezewell and a 3N1 Breezewell. The 3N1 was smaller and I was a little disapointed but, I have had no problems with it. The 2n1 unit seemed to be working well and so I thought I would buy one more. The day after I bought the 3rd one the second 2n1 unit quit blowing air after 5 days. Nothing I could do would fix it. I did all the troubleshooting suggestions that came with it. I reached out to the seller with no success and then the third one arrived I thought ok the other one going out must be a fluke so I hooked up the third one relieved that it was working. Until the next day when the third one quit blowing air. Now I was furious. It was hot and I had spent too much money of these units. I contacted Amazon who by the way are the best cutomer service people I have ever worked with. They got me a refund and I was able to order something else. Not trusting the reviews on Amazon I went out to Google and searched for the best AC that did not need to be vented and this little baby popped up on a Bob Vila website on top evaporated coolers. It did not look that great. It did not have the bells and whistles that Breezwell had but, after reading reviews I was convinced enough to give it a try. I live in UT which is a dry climate and the reviews from California and Nevada who have similar hot dry climates were very convinving. When I got it there was nothing to really put together but to attach the wheels on the bottom of the unit and add water. When we turned it on we could tell how powerful it was. It takes 4 gallons of water. But, when you turn the fan on with the pump, the air coming out was very cold. Almost like a refrigerated unit. It cools the entire room down to the point I have to turn it down because it gets too cold. That is without adding ice or anything like what my breezewell was recommending. You can put ice in it but you do not need to. Maybe I will try that on the hotter months. This AC is strong and has strong fan that blows the air out. I do not mind the sounds. I am pretty sure it is a little quieter than the Breezewell that bills itself as a quiet unit. I compared the force of the fan with my working breezewell and this one is stronger, ,colder and I am happy with it. I finally found a unit that really works. So what are the negatives? You have to watch the water level and you will need to fill it up about every 4 hours if you run it all the time. You have to do this with all evaporated coolers from what I can see but, this one uses 4 gallons of water. I will sometimes turn off the pump and put it on fan only to conserve water. There is a way to hook it up to a hose to avoid to having fill it up with water as often. It is still pretty cool without the pump because it is a strong fan. On warmer days you will be glad for the water to cool down the air. Read the directions that come with it and you will be fine. I highly recommend this unit if you live in a dry climate.

This unit is advertised with totally false CFM claims. I used a digital anemometer and calculated the 12 point average in a ring across the outer edge and the inner edge, excluding the very center point which has no flow, and the average was 837CFM. I did this 3 times, and the average of the 3 x 12 point averages was 829 CFM. So we can safely say that this unit, on HIGH, only has around 830 CFM. That is 46% LESS than the advertised CFM! This means it has a much less cooling power than advertised. It does cool the air, but it could only cool a small room. I use it inside a small indoor vegetable garden. It works fine for this. However, when summer hits, I am uncertain if it can maintain the low temperature cooling I need to keep growing veggies year-round, especially colder crops like collard greens, kale, carrots, etc. There's a lot of water dropping noise because they did not include a catch-tray below the media pads, so the water drips directly into the reservoir and makes a lot of noise. The fan itself is reasonably quite on low, but louder than other larger, higher CFM units I own. It has only 1 cooling bad in the rear - no side cooling pads. The biggest benefit of this unit is that it has "auto resume" functionality, meaning that when the power goes out and back on, it resumes the previous mode of operation without any user intervention. This means it can be plugged into a smart plug and connected to a home automation system, allowing advanced control and integration with other sensors (shut off / shut on at a given VPD, etc). That's the main reason I bought this unit. However, due to the lack of actual CFM as advertised and the noise it produces, I've knocked off 2 stars. Summary: The unit works to cool the air, but not at the advertised level. It's a big noisy, but nothing excessive. Overall a decent unit for a small room around 200sq ft.

I waited until the end of summer to leave my review, so I could have an idea of how this evaporative cooler would hold up after months of use. I live in So Cal, and specifically bought this for work. I work in a large outdoor booth without any kind of cooling. After several summers of suffering from sweltering heat, I finally decided to take the plunge and buy a portable swamp cooler. Initially I was hesitant, as a few hundred dollars is a lot to spend on something I’d likely only use for 3 or 4 months. But I am sooo glad I did! This cooler really does blow out cool air! I was surprised and delighted! The wheels glide across the concrete floor with ease, and the drain is easy to plug and unplug. I don’t have access to a hose, so I can’t attest to how the hose connector works. But it’s very easy to add water manually. And no leaks! You can also add small chunks of ice, although I don’t think using ice made much of a difference. Also, the little window showing the amount of water left in the tank is very convenient. Be prepared for the air flow being strong, and a bit loud. Even on low, which is the only setting I used. Being outdoors a little noise is not a big deal. But I think it might be too loud to use indoors. If I have one thing that’s negative, it’s that the latch on the manual fill door, which is only a tiny piece of plastic, broke after a couple of days. All in all, this portable cooler works great and was worth every penny!