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ShrewdSoda611 35.8K Views
Aug 23, 2025 4:45 PM

Select Costco Stores: Midea 12000 BTU DUO Portable Air Conditioner w/ MShield

$300

$480

37% off
(In-Store Only)at Costco Wholesale
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Deal Details
Select Costco Wholesale Stores have for its Members: Midea 12,000 BTU DUO Portable Air Conditioner with MShield (MAP14AS1TWT-C) for $299.97. Valid for in-warehouse purchase only. You may check the warehouse section of the Costco App and search for local inventory using item number 2575354.

Thanks to community member ShrewdSoda611 for sharing this deal.

Note: This is a clearance item; availability will be limited.

Features:
  • 12,000 BTU DOE: 3-in-1 Comfort Cools, Ventilates, and Dehumidifies
  • Inverter Technology Delivers up to 40% Energy Savings Compared to US Federal Standard
  • Matter Certified Unit with App & Voice Control: Control From Anywhere with the Smart Home App
  • 2X Stronger, 2X Faster vs Single Hose Portable ACs, with 25ft Long Distance Airflow
  • MShield Air Ionizer Technology: Reduces Odors, Smoke, and Gases in the Air

Editor's Notes

Written by qwikwit | Staff
  • See the original post and forum comments for where our members have been able to find this clearance item.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by ShrewdSoda611
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Select Costco Wholesale Stores have for its Members: Midea 12,000 BTU DUO Portable Air Conditioner with MShield (MAP14AS1TWT-C) for $299.97. Valid for in-warehouse purchase only. You may check the warehouse section of the Costco App and search for local inventory using item number 2575354.

Thanks to community member ShrewdSoda611 for sharing this deal.

Note: This is a clearance item; availability will be limited.

Features:
  • 12,000 BTU DOE: 3-in-1 Comfort Cools, Ventilates, and Dehumidifies
  • Inverter Technology Delivers up to 40% Energy Savings Compared to US Federal Standard
  • Matter Certified Unit with App & Voice Control: Control From Anywhere with the Smart Home App
  • 2X Stronger, 2X Faster vs Single Hose Portable ACs, with 25ft Long Distance Airflow
  • MShield Air Ionizer Technology: Reduces Odors, Smoke, and Gases in the Air

Editor's Notes

Written by qwikwit | Staff
  • See the original post and forum comments for where our members have been able to find this clearance item.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by ShrewdSoda611

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63 Comments

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Aug 23, 2025 9:05 PM
268 Comments
Joined Aug 2011
1960BrookwoodAug 23, 2025 9:05 PM
268 Comments

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Quote from OliveActivity9779 View quoted comment :
does the invertor tech not help in this regard?
It sure will. They will idle down to about 100 watts in low demand. My experience is they run for far less than a conventional AC unit--and I have 3 dual inverter Mideas.
Last edited by 1960Brookwood August 23, 2025 at 02:09 PM.
2
Aug 23, 2025 9:31 PM
252 Comments
Joined Aug 2014
AnonymousA5351Aug 23, 2025 9:31 PM
252 Comments
Quote from justye View quoted comment :
Quote from AnonymousA5351 :
PSA: This air conditioner has an ionizer. Ionizers are linked in peer-reviewed studies to multiple health problems, including heart problems. For your safety, it is recommended to purchase air conditioners and air purifiers WITHOUT ionizers.
Any recommendations?
Window A/Cs are always the better pick versus portable A/Cs: more efficient, quieter, and don't take up space in your room. Go for a window A/C if you can
1
Aug 23, 2025 9:35 PM
252 Comments
Joined Aug 2014
AnonymousA5351Aug 23, 2025 9:35 PM
252 Comments
Quote from OliveActivity9779 View quoted comment :
Quote from AnonymousA5351 :
PSA: This air conditioner has an ionizer. Ionizers are linked in peer-reviewed studies to multiple health problems, including heart problems. For your safety, it is recommended to purchase air conditioners and air purifiers WITHOUT ionizers.
please post a link to study
There are multiple, here's one that I had saved:
https://www.sciencedirect.com/sci...232100158X
And here's the high-level overview if you're not good at deciphering studies:
https://natsci.source.colostate.e...n%20humans.
Aug 23, 2025 10:33 PM
1.5K Comments
Joined Sep 2006
linrickAug 23, 2025 10:33 PM
1.5K Comments
Quote from JollyLake715 View quoted comment :
Anyone know the wattage use at low med and high? Does this use more watts compared to a 12k mini split with 21 seer rating?
I was running mine at 68 degree and it is 1.5 - 1.7 Kwh. So it is very energy efficient.
Aug 23, 2025 10:36 PM
640 Comments
Joined Apr 2006
bbrainAug 23, 2025 10:36 PM
640 Comments
Quote from jmt553 View quoted comment :
This is a great unit for those who are curious. Also a great price for a dual hose, inverter, heat pump unit. I didn't one of these to the lobby of our business to help in the summer and winter from being so cold in there, and it runs like a top. Is also very quiet compared to other portable units.
Not a heat pump unit.
1
Aug 23, 2025 10:38 PM
179 Comments
Joined Jun 2017
jmt553Aug 23, 2025 10:38 PM
179 Comments
Quote from bbrain View quoted comment :
Not a heat pump unit.
Good catch my apologies. The model I have does have the heat pump and I got the model numbers mixed up. I thought they were the same.
Aug 23, 2025 10:41 PM
1.5K Comments
Joined Sep 2006
linrickAug 23, 2025 10:41 PM
1.5K Comments
Quote from jmt553 View quoted comment :
This is a great unit for those who are curious. Also a great price for a dual hose, inverter, heat pump unit. I didn't one of these to the lobby of our business to help in the summer and winter from being so cold in there, and it runs like a top. Is also very quiet compared to other portable units.
no heat pump on this one.
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Aug 24, 2025 12:17 AM
248 Comments
Joined Dec 2015
wratzAug 24, 2025 12:17 AM
248 Comments
I got one of these and it did absolutely nothing to remove humidity in my shop. I think it may have even increased it, but my cheap monitors aren't precise enough to be sure. I'm not sure if I got a bad unit because it really shouldn't be possible. Just fyi if you live in a humid environment.
Aug 24, 2025 12:44 AM
386 Comments
Joined Apr 2016
dakwoodsAug 24, 2025 12:44 AM
386 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from Armaan1 View quoted comment :
This thing is a energy hog. Be warned, your electric bills will double.
The previous model Midea 12,000 BTU 3-in-1 portable AC without inverter tech has the EnergyGuide estimated yearly energy cost of $123 with a 7.9 efficiency ratio. This model currently sold at Costco is listed at $68/year, 13.8 efficiency ratio.
7
Aug 24, 2025 1:01 AM
35 Comments
Joined Oct 2015
Gp_wwAug 24, 2025 1:01 AM
35 Comments
can we price match from a costco different than I brought it from, if it is in 30 days Window
Aug 24, 2025 1:54 AM
465 Comments
Joined Sep 2016
DharmaBummed69Aug 24, 2025 1:54 AM
465 Comments

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Quote from OliveActivity9779 View quoted comment :
does the invertor tech not help in this regard?
I got one of these refurbished for $199.99 from Walmart about a month ago. Our wiring isn't the greatest and I have problems running my computer while gaming and a higher than 5000 BTU air conditioner on the same circuit. When I first got it I tried playing my computer after I first turned on this portable unit and unfortunately it blew the breaker. I tried again later after the air conditioner had been running for awhile and it was cooled down and haven't had a problem since so the inverter is definitely using less power after it reaches the set temp.
2
Aug 24, 2025 5:11 AM
1K Comments
Joined Jan 2008
Armaan1Aug 24, 2025 5:11 AM
1K Comments
Quote from dakwoods View quoted comment :
Quote from Armaan1 :
This thing is a energy hog. Be warned, your electric bills will double.

The previous model Midea 12,000 BTU 3-in-1 portable AC without inverter tech has the EnergyGuide estimated yearly energy cost of $123 with a 7.9 efficiency ratio. This model currently sold at Costco is listed at $68/year, 13.8 efficiency ratio.
Kinda misleading, but I see your point. All I know is that after using this unit last year, between June - October, my bills went from $143/mo to $297-336/mo. We used the unit between 9pm - 2am and 12pm - 4pm.
3
Aug 24, 2025 6:26 PM
11.5K Comments
Joined Feb 2013
Hat-TrickAug 24, 2025 6:26 PM
11.5K Comments
Just picked one up today. Had to drive to a further Costco than normal since our local one was not on sale (stupid, right?). Now, for the hook-up! Smilie
Aug 24, 2025 9:12 PM
26 Comments
Joined Oct 2022
AmusedPear909Aug 24, 2025 9:12 PM
26 Comments
Quote from Armaan1 View quoted comment :
Quote from dakwoods :
Quote from Armaan1 :
This thing is a energy hog. Be warned, your electric bills will double.

The previous model Midea 12,000 BTU 3-in-1 portable AC without inverter tech has the EnergyGuide estimated yearly energy cost of $123 with a 7.9 efficiency ratio. This model currently sold at Costco is listed at $68/year, 13.8 efficiency ratio.
Kinda misleading, but I see your point. All I know is that after using this unit last year, between June - October, my bills went from $143/mo to $297-336/mo. We used the unit between 9pm - 2am and 12pm - 4pm.
I use mine about 11pm-8-am in San Diego and I believe my bills only went up $20-$40/mo. Granted, the inside air is 80 F, the outside air is 68 F, and I'm cooling to 70 F. It definitely runs the compressor but the amount of work it has to do is probably pretty minimal.
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Aug 25, 2025 2:04 PM
1.7K Comments
Joined Sep 2011
SoukaAug 25, 2025 2:04 PM
1.7K Comments
Quote from JollyLake715 View quoted comment :
Anyone know the wattage use at low med and high? Does this use more watts compared to a 12k mini split with 21 seer rating?
I have an older model Midea 12k unit, maybe 2-3yrs old. My KASA plug app measured about 1100watts max, but typical is around 300-400 watts.

No issues with condensation, mold, etc. Best portable AC unit I've used by far.

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