Midea - Duo 10,000 BTU DOE Portable Air Conditioner with Smart Inverter (MAP12S1TBL)

Bad news for me is my Midea U-shaped in-window AC is on the recall list. I bought it a year ago at Costco on sale for around $300. I assume even if I might get a full refund, I probably won’t be able to get a new one with the same 12k BTU for $300, which makes me so angry. Anyway, we just bought the exact same portable model as you, but for $499 at Costco in the Seattle area. You got such a good deal. Anyway, I love this AC unit, it’s amazing! It’s currently 73 degrees inside the room where we put it, but it’s 84 degrees outside the house. It could be even colder in here (the machine is capable of that), but we don’t want to feel too cold, LOL. Every summer until now, I have suffered so much (the heat makes my health issue temporarily much worse, until the air cools down). I really hope this one won’t be recalled in the future. 

I got a Midea 10kBTU it's literally the best my apartment is 1,050sq it makes my whole place cold I love it so much

I’ve purchased a couple of Midea 10k smart inverter units and have had no issues so far. Time will tell how long they last though.

Get a 2 hose portable or a Midea with it's 2 in 1 hose system. 1 hose models are sold in America 'because installing 2 hoses is too hard for that market to figure out'. They are the single dumbest invention in the history of inventions, blowing out the very air you are trying to cool. Buy an inverter model, and just spend the money on the Midea.

Grab a dual hose one like the 3.3Kw Midea Duo Smart Inverter portable. If your region doesn’t have dual hose units, you can always try and convert it by laying a ducted box over the condenser coils.

No air conditioner is going to be particularly energy efficient but new ones are as good as they can be. If you have vertically-sliding windows then a window unit is definitely the best way to go. The U-shaped ones are best because you don't need to install brackets on the outside of the building. If you have horizontal-sliding windows then you'll need a portable AC unit, preferably a dual-hose model. The two best dual-hose brands are Midea and Toshiba. They're more expensive than window units but absolutely worth it in the middle of August.

YSK about these things: in general they're not the most efficient choice. (I know you may be stuck with this, but here's the tech.) The whole works sits inside the room, including the "hot side" of the mechanism (compressor, heat radiating coils etc.) That heat ends up radiating into the room, so you're recooling the heat the unit creates. (That's why window a/c's put the hot side outdoors.) There's also two kinds, single-hose and double-hose. Single-hose pulls air from the room, cools it, and blows the hot air outdoors, so part of the room air you've just cooled gets dumped outside. Dual-hose pulls air from the outside to cool the compressor and heat coils then dumps it outdoors, and a separate airflow pulls air from the room, cools it and blows back in the room. Finally, almost all of these have to be drained of condensate, although some evaporate the water and blow it outside with the hot air. I did a f/kton of research, and you might consider the Midea dual-hose models. They use a variable speed DC inverter-compressor which only runs as fast as it needs to, also quieter than most. As has been said here, not the cheapest but may be worth it in the longer run.

If you can do a window U shape that’s your best option. Next would be a portable but please get a two hose unit. The Midea hose within a hose one is quite popular. These allow for your internal pressures to be normalized as a single hose unit will cause negative pressure in your apt General consensus that I agree with is get a unit for each room, make sure they are sized appropriately for the room. Don’t get a huge unit for a small room as it will just cycle a lot. I have a lot of computer and electronics gear so I go like one size bigger than “needed” and that seems to work well for me so do consider that when sizing your units Get circulator fans, especially if no ceiling fans present. They help move the air around and stop hot spots from forming and give you a more balanced temp. Standing fans or any other fans are also good to have as a breeze across the face just makes you feel better.

Get a dual hose unit for sure. Its higher cost is made up in efficiency. I cant tell you about each models maintenance needs though they all have quirks in their design. I like Mideas hose in a hose design but theyre around $500. I have at least 5 portable ACs in storage, I collect them from thrift stores then maybe use em for awhile, then resell them. Portable ACs in general especially single hose ones, are really inefficient appliances. Almost all of them need extensive disassembly to clean dust buildup out of. If you have access to a good air compressor or powerful leaf blower you can keep on top of it by blowing out much of the dirt as it builds up. Do not overspeed the blower wheel when blowing it out, I like to stick a coat hanger in it to fix it in place. (They can fly apart at high speed) Having a good assortment of cleaning brushes helps a lot too.  I do like my ACs to be clean! First thing I did when I recently moved into an apartment was spend a couple hours thoroughly going through the window unit it came with. 

350? Shit this unit was like 450 at my Costco. Returned for a swamp cooler, its colorado so swamp cooler works wonders.

I have a Medea Duo and Ive had it for 4 months now. It raised my electric bill almost a $77 a month. It puts negative pressure into the room, it pushes humidity into the room So the room is more humid than the rest of the house, and it has a horrible mesh filter that allows dust to enter and wet. I'm on the second floor apartment, and it's the second one that I've had to drag up here and put set up. From here on out, I'm sticking with frigidair period

I just bought midea duo portable ac at 370 from costco online. If you have a membership or if you know someone with it, highly recommend getting this one. Probably #1 dual hose inverter portablr ac out there.

Ive been using it for few days and honestly it is mindblowing... very quite

Midea duo inverter unit with airlock seal or with custom acrylic piece ( will look more clean but gotta spend some money on it)

Second the Midea duo and I never even know it's on 

I love my Midea duo air conditioner. I think I got it for like $580 and it works great for cooling in the summer. You can check this article for some good recommendations. [Best portable air conditioners in 2025](https://mhtntimes.com/articles/best-portable-air-conditioner)

Midea DUO is the correct answer. Midea also makes this under many other names if you find one w/ the same DUO type hose.

The Midea DUO model has a concentric hose (hose inside of a hose) and the inverter compressor that ramps up & down depending on the level of heat. Midea also makes the U-shape window units for double-hung (up & down) windows which is an inverter as well. Inverters are also quieter

The midea duo is better at Costco. It was on sale for 350 for a month. If you have a chase credit card they have a thier own pay over time You di t wnat a cheap portable because most fo them are dogshit. You are shopping at the right store since you'll probably need to return it or swap it out after a year or two

Really needs to go out a window otherwise you're just dumping hot air into your house, even if it's another room. Are you in the US? I got a midea unit at Costco that works great. Only really use it when I have to (in Florida so power outage from a hurricane or if something happens to my AC) but never had an issue. Was a couple hundred bucks.

I have a Midea duo from Costco was $450. It’s nearly 2 years old. I recommend it. 

Hey! As an HVAC pro, I get this question a lot especially during those hot spells when central systems can’t cut it or there’s no ductwork. When choosing a **portable air conditioner**, I usually recommend looking for three key things: 1. **BTU rating that matches your room size** too small won’t cool properly, too big will short cycle and not dehumidify well. 2. **Dual-hose design** if possible it’s more efficient than single-hose models because it doesn’t pull in hot air from outside while exhausting. 3. **Easy maintenance** check how often you need to drain it, and whether it has washable filters. A few solid brands I’ve seen perform well in real homes: * **Whynter ARC-14S** – Dual hose, good build, strong performance for medium to large rooms. * **DeLonghi Pinguino Series** – Quiet operation and decent features. * **Midea Duo** – Newer tech, inverter-driven, very efficient and quiet. Also, make sure to vent it properly (window kit, sealed tight) that makes a big difference. If you can tell me your room size, noise sensitivity, and budget, I can recommend something more specific.

Looks to be the same model except in white. It's a very good deal. If your only option is a portable AC, this model is the second best model you can get. The only thing better is the same device which comes with a heat pump. The same machine (rebranded as Toshiba) is also sold at Home Depot and can be cheaper sometimes though not as cheap as the current deal.

The only kind of portable air conditioner that is effective on super hot summer days are those with two hoses. Get one with an inverter compressor if you can because they are so much quieter. Midea Duo used to be the only game in town, but now GE also makes one. Then, measure your window and the hose size and order a custom window insert from https://martinsonmanufacturing.com/collections/window-inserts. The window insert which comes with the air conditioner will not work for your windows.

Dual or concentric hose models are the best bet. Inverter is good for noise. I have a midea inverter, with concentric hose that is great

I have three Midea inverter portable units that actually keep a 1400 square foot house cool. The dual hose set up is kind of weird, but it works. They are all incredibly energy efficient. They are also pretty expensive. I got a couple of them used and one much cheaper than everywhere else at Costco. One of the best things about them is, once they cool things down, they ramp down and run really quiet.

100 off until 6/15, I bought mine from last year, it got me through last summer. You probably want to get it before sale end, summer is already here. costco also have a 8000btu dual hose Hisense for 280? it’s smaller and lighter, not sure about the power consumption. This 12000btu AC pulls 1400w at maximum power I use latex rubber hose for drain. I think I’m going to dock at an EV charger to charge my 20kwh power stations/batteries.

Have both of these... The 8k Hisense has a quiet mode that slows down the fan. If your room is borderline too big for 8k it may not be able to keep temp in this mode but it is genuinely quiet. The 12k Midea does not have this mode. In addition, when the inverter kicks on it really is quite the kick. It's also a bit bassy while it's spooling up. If you are a light sleeper it will wake you up.

I just put the Midea back in the window over the weekend, though it's the more expensive one Costco sold in 2023 with the heater. It's a bit loud when the condenser kicks in depending on mode but did the job. Had a second Midea like the one you linked last summer and the Dry function didn't work. Called Midea and they said to take it back to Costco and get my money back, no questions asked. What's your room size? One is 12,000 and the other is only 8,000. You don't want it too big for your room.

I got this same unit for the same price, but mine has this constant rattle sound. Does anyone have any experience with this and have a way to fix it? I'd rather not return it because frankly it was a huge pain in the ass to get home.

I have it in my living room right now with vaulted ceilings. Keeps it 72 at 100 degrees outside so far

I have this to cool my living room, dining room, and kitchen. There are no doors between these rooms so it works great. Each bedroom has the midea U (except for the 4 year old, she just gets an el cheapo unit that only runs for a couple hours at bedtime)

Ich hatte mal was gefunden vor nem Jahr. Hat damals knapp 2000 € gekostet und sah scheisse aus. Deshalb wurds halt dieses Jahr die Midea. Kan ich ja nix für dass die Europäer mal wieder pennen.

I paid $450 for it. It's been running throughout the day in 90F degree. Able to keep my room (110sqft) steady at 75F. Electricity average around $2/day. Worth it.

For 1 room its good. Don't get ambitious tho. That thing don't do shit in a living room.

Midea. It’s awesome! Expensive but portable and awesome.

Nekünk is volt egy darabig Midea, leírom a tapasztalatokat. 3. emeleten laktunk, 4 emeletes volt a ház. Apósom akinek klímás vállalkozása volt, azt javasolta, hogy legyen mindig nyitva egy ablak amikor használjuk a klímát. 42 nm lakásban használtuk a nappaliban, ami kb. 20 nm volt. Abban a helyiségben valóban jó hőmérséklet volt, addig amíg ment a klíma, viszont sajnos elég hangos volt. A fürdőben lévő szellőzőn keresztül lehozta a cigiszagot a felsőszomszédtól aki bent bagózott a lakásban. Ez állandó volt. Egyszer pedig bejelzett a szénmonoxid érzékelőnk is. Kivezetés: az ablakot akartuk kivágatni, aztán meggondoltuk magunkat és egy polikarbonát lapot vágtunk ki amit az ablak elé tettünk, azon vezettük ki a klíma csövét. Amúgy nélküle pusztulat volt, 30 fok és semmi levegő. Átmeneti megoldásnak elment, de aztán beruháztunk egy rendes klímára. El is tudtam adni jó áron a mobilklímát.

I am using a Toshiba and a Midea in the house. Toshiba must be a subsidiary of Midea because the Midea Smart Home app can recognize and control the Toshiba portable unit as well. I use the app to control the units remotely.

It keeps our small bedroom cool but it got full of mold in 6 months. I tried to remove the casing to clean the mold but it’s just in a really inaccessible spot deep in the cold air vent.

Midea hatte ich mir auch mal zugelegt. Nach zwei Jahren sind die Schläuche für das Kondenswasser einfach zerbröselt. Nun läuft überall Wasser aus. Kann ich absolut nicht empfehlen

I bought one a few months ago and it’s great

I have a portable AC from Midea. Bought it for $500 from Sam’s club, cut a hole in the bottom of my garage door and made it clip in there. I live in South Fl so the garage gets super hot, with this running I can get the whole garage down the low 70’s maybe 68,69 with a fan helping blow it around. I don’t use it all the time so I also made a piece of wood as a block off so I can take the exhaust hose off and close up the hole I made. Haven’t insulated the door yet but it’s on my list to do lol.

I love my Midea so much better than the onboard one. It only draws about 750 watts when on full blast, and my understanding is that it only fires up its compressor when the outdoor temperature is warm. I like that it gently “rolls” up the fan to higher intensity. The downside is that it has a tough time cooling my 27 foot TT when it gets into the upper 80s or 90s. Then I have to run my on board and the Midea. I get so frustrated with my 1600 watt onboard unit that is super loud and has to run its compressor and fan just to maintain a few degrees below outdoors. Not to mention my inverter gets very hot running close to 2.0k. Another downside is that the Midea is a pain to take out of the window if you move, but I’m parked. Don’t buy those trash hose ones. They’re very inefficient and can’t dump the heat very well. I’ve tried them and I’m lucky if they can drop the camper 10 degrees after hours of operation.

We have Mideas! I'm in the suburbs on a fairly quiet street, so I don't know if I can say definitively if the sound is less than a typical a/c, but I'd imagine it's less. It's a great a/c unit regardless, it runs so much quieter than a regular one. If I'm doing a quick audition I'll leave it on (I turn it off for paid gigs), which I could never do with our old a/c units. I would think you could throw some insulation blankets over it if it feels like it's too loud. Good luck -- stay cool!

Unfortunately did not install mine until after the Amazon return window ended and I had collapsed the box. I had emails with them back and forth about the smell, assuming that it was covered under the warranty. They were not very helpful. In fact they were very dismissive and told me to get someone to clean it (almost as expensive as the air conditioner) or clean it myself (which I believe would void the warranty) so I used the wick trick to drain water from the a/c and purchased an extended warranty.

I do have a Costco membership now. Costco is so much easier to deal with than Amazon. A much better company. I would never spend that much money on anything at Amazon ever again!! I just sent an email for my refund and forwarded my support communication along with it. I doubt I can get my extended warranty refunded.

I used to have 2 of these. 1 never cooled right out of the box. The other one had its hose cracked after 2 summers. Would I buy another? No. But it may work out ok for you so ymmv.

Yes, I returned it because the hose is just so big and very awkward to get into a window. That’s the only drawback I think. I have four of the Midea U-shape units and overall I prefer those.

Bought one 2 days ago. Works good but makes a terrible high frequency sound and I have to run the fan on high to drown it out. So be warned.

I just got this same unit, it was keeping our living room a real nice 75 degrees, on some 95 degree outside days...this was about a week long stint...but today it will NOT get COLD, and room temp is going up and up. Pretty bummed because its a nice unit, quiet, powerful when it was working.

Had great success with their window units. They really pump and are some of the quietest ones available. I have these 2 of these exact portable units and one fills up with condensation and has to be drained every 15 minutes. I ended up having to jury rig a constant drain hose to it and it works fine but I’ve never had to do that with a portable before. Support was crap. Just said “it has to have a drain hose connected when running in dry mode” even though I told them repeatedly it was not in dry mode. It was in “cool mode” which isn’t even mentioned in the generic users manual. Honestly I’d avoid this portable unit and get something else. If a window unit is an option I found both their traditional and u shaped window units to be fantastic.

Yes I put this in my rental property and it works wonderfully

I have this one! Although I paid 2x (in CAD). It works great for my 450sqft apartment and I've had it for 2 years now.