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normz04 34.3K Views
Jun 8, 2025 5:41 PM

Costco Members: Midea 12,000 BTU DUO Portable Air Conditioner with MShield

$380

$480

20% off
+ Free Shippingat Costco Wholesale
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Deal Details
Costco Wholesale has for its Members: Midea 12,000 BTU DUO Portable Air Conditioner with MShield (MAP14AS1TWT-C) for $379.99. Shipping is free.

Thanks to community member normz04 for sharing this deal.

Note: Item may be available in your local warehouse; prices may vary.

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
  • The sale is valid through today (6/15/25). While supplies last. Limit 5 per member.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by normz04
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: Midea 12,000 BTU DUO Portable Air Conditioner with MShield (MAP14AS1TWT-C) for $379.99. Shipping is free.

Thanks to community member normz04 for sharing this deal.

Note: Item may be available in your local warehouse; prices may vary.

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
  • The sale is valid through today (6/15/25). While supplies last. Limit 5 per member.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by normz04

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Top Comments

Gregory_Julian
46Comments
21Reputation
Bought it at Costco warehouse. It's $349.99 or $30 cheaper than on costco.com. The $100 OFF is valid from 5/14/25 to 6/15/25. I installed it in my son's room. He said it's a lot better than the old Sharp single-hose AC.
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JimG5349
443Comments
82Reputation
A 20K BTU unit will need a 240V circuit. A 10K can usually run on 15A 120V circuit. If you can plug them into different 120V circuits, you can run 2 10K units simultaneously. On the same circuit, they will likely trip the breaker.
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53 Comments

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Jun 9, 2025 6:01 PM
46 Comments
Joined May 2009
Gregory_JulianJun 9, 2025 6:01 PM
46 Comments

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

Bought it at Costco warehouse. It's $349.99 or $30 cheaper than on costco.com. The $100 OFF is valid from 5/14/25 to 6/15/25. I installed it in my son's room. He said it's a lot better than the old Sharp single-hose AC.
1
Jun 9, 2025 6:13 PM
1.2K Comments
Joined Oct 2015
BobertbosunJun 9, 2025 6:13 PM
1.2K Comments
Quote from Gregory_Julian View quoted comment :
Bought it at Costco warehouse. It's $349.99 or $30 cheaper than on costco.com. The $100 OFF is valid from 5/14/25 to 6/15/25. I installed it in my son's room. He said it's a lot better than the old Sharp single-hose AC.
Does the fan continue running at volume when it reaches temp and the compressor turns off? I have a different that has a very noticeable clunk on and off when it reaches temp and then turns back on. It's basically unusable at night with the noise.
Jun 9, 2025 6:41 PM
50 Comments
Joined Dec 2016
kinnarrkJun 9, 2025 6:41 PM
50 Comments
Quote from Bobertbosun View quoted comment :
Does the fan continue running at volume when it reaches temp and the compressor turns off? I have a different that has a very noticeable clunk on and off when it reaches temp and then turns back on. It's basically unusable at night with the noise.
I have been using this for about a month now. In dry mode which works as a dehumidifier turns machine on and off that makes some noise but cool mode (air conditioner) doesn't make much noise since it uses inverter. It's pretty quiet unless you keep the fan at the highest setting. Highest fan setting has significant noise.
1
Jun 9, 2025 6:45 PM
483 Comments
Joined Feb 2007
m3rdpwrJun 9, 2025 6:45 PM
483 Comments
Quote from Gregory_Julian View quoted comment :
Bought it at Costco warehouse. It's $349.99 or $30 cheaper than on costco.com. The $100 OFF is valid from 5/14/25 to 6/15/25. I installed it in my son's room. He said it's a lot better than the old Sharp single-hose AC.

I believe for Mass, there is also an additional $40 rebate going on for these more energy efficient models.
Jun 9, 2025 7:29 PM
52 Comments
Joined Apr 2014
lost_gollumJun 9, 2025 7:29 PM
52 Comments
Quote from Bobertbosun View quoted comment :
Does the fan continue running at volume when it reaches temp and the compressor turns off? I have a different that has a very noticeable clunk on and off when it reaches temp and then turns back on. It's basically unusable at night with the noise.
Yeah, this one has a explicit setting which says to keep running the fan continuously even after you hit the target cooling temperature.
Jun 9, 2025 7:41 PM
1.9K Comments
Joined Nov 2022
L97Jun 9, 2025 7:41 PM
1.9K Comments
Is it better to just get one 20K+ BTU or two 10K+ BTU units for my condo and close all unnecessary doors for rooms we aren't in?

also, do these ever come with external temp sensors? IE if the other side of the large living room is 75 degrees, but the temp by the air conditioner is 65, it would kick on based on the other temp sensor
Jun 9, 2025 7:56 PM
6.4K Comments
Joined Oct 2010
IamProJun 9, 2025 7:56 PM
6.4K Comments
In this house we obey the laws of thermodynamics!
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Jun 9, 2025 8:01 PM
386 Comments
Joined Apr 2016
dakwoodsJun 9, 2025 8:01 PM
386 Comments
$350 at my local warehouse.
Jun 9, 2025 9:01 PM
2.7K Comments
Joined Feb 2005
bostonlouJun 9, 2025 9:01 PM
2.7K Comments
Quote from m3rdpwr View quoted comment :
I believe for Mass, there is also an additional $40 rebate going on for these more energy efficient models.
just checked the mass save site or whatever it linked me to and didnt' see this model?
Jun 9, 2025 9:01 PM
313 Comments
Joined Aug 2007
solarium_riderJun 9, 2025 9:01 PM
313 Comments
Quote from _lukas View quoted comment :
Is it better to just get one 20K+ BTU or two 10K+ BTU units for my condo and close all unnecessary doors for rooms we aren't in?

also, do these ever come with external temp sensors? IE if the other side of the large living room is 75 degrees, but the temp by the air conditioner is 65, it would kick on based on the other temp sensor
The remote can be used ad a remote sensor
Jun 9, 2025 9:07 PM
1.7K Comments
Joined Sep 2017
CoreyH8836Jun 9, 2025 9:07 PM
1.7K Comments

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

Looks exactly like the Toshiba 14,000 BTU 115V Inverter Dual Hose Portable Air Conditioner I got last year for 250 from Woot! Same remote and everything. It did its thing when my HVAC was down for a week. I bought an extended hose from Amazon. It can be loud at high, but it kept the temp down. I should have bought two.
1
Jun 9, 2025 9:18 PM
145 Comments
Joined Nov 2022
JollySpaniel3428Jun 9, 2025 9:18 PM
145 Comments
Quote from _lukas View quoted comment :
Is it better to just get one 20K+ BTU or two 10K+ BTU units for my condo and close all unnecessary doors for rooms we aren't in?

also, do these ever come with external temp sensors? IE if the other side of the large living room is 75 degrees, but the temp by the air conditioner is 65, it would kick on based on the other temp sensor
Two units will likely outperform a single if you can space them out at opposite ends of the area you're cooling.
Jun 9, 2025 9:49 PM
443 Comments
Joined Feb 2017
JimG5349Jun 9, 2025 9:49 PM
443 Comments

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Quote from JollySpaniel3428 View quoted comment :
Two units will likely outperform a single if you can space them out at opposite ends of the area you're cooling.
A 20K BTU unit will need a 240V circuit. A 10K can usually run on 15A 120V circuit. If you can plug them into different 120V circuits, you can run 2 10K units simultaneously. On the same circuit, they will likely trip the breaker.
1
Jun 9, 2025 10:21 PM
257 Comments
Joined Nov 2010
Is2rJun 9, 2025 10:21 PM
257 Comments
Quote from CoreyH8836 View quoted comment :
Looks exactly like the Toshiba 14,000 BTU 115V Inverter Dual Hose Portable Air Conditioner I got last year for 250 from Woot! Same remote and everything. It did its thing when my HVAC was down for a week. I bought an extended hose from Amazon. It can be loud at high, but it kept the temp down. I should have bought two.
Got the same one and used it non stop in a upstairs bedroom during summer, does work great. My issue with it was the really bad mold growth deep in it; not just the vents. I kept it clean and ran the dry mode? and fan etc etc. I never had a drain hose hooked up to it (never said too). I took it apart as much as I safely could after removing like 40 screws and still couldn't get to the most inner workings; cleaned it as much as I could. Did my best putting it back together and still had a handful of screws left over haha. Still works, but I'm hesitant to use again. Maybe I'll try spraying some vinegar in it.
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Jun 9, 2025 11:35 PM
1.6K Comments
Joined Nov 2009
baracludeJun 9, 2025 11:35 PM
1.6K Comments

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Quote from Is2r View quoted comment :
Got the same one and used it non stop in a upstairs bedroom during summer, does work great. My issue with it was the really bad mold growth deep in it; not just the vents. I kept it clean and ran the dry mode? and fan etc etc. I never had a drain hose hooked up to it (never said too). I took it apart as much as I safely could after removing like 40 screws and still couldn't get to the most inner workings; cleaned it as much as I could. Did my best putting it back together and still had a handful of screws left over haha. Still works, but I'm hesitant to use again. Maybe I'll try spraying some vinegar in it.
There's currently a recall on their popular U shape window AC unit due to mold growth.
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