A new Black Friday feature is coming...A new Black Friday feature is coming...

Learn More
Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Missed This Deal? Get alerts when similar deals are posted.
expired
expired
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
Visit Retailer

Why are you downvoting this deal?

Good Deal?
63Comments
Save
Share
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

Community Voting

Deal Score
+31
Good Deal
Bad Deal

Why are you downvoting this deal?

Visit Retailer

Top Comments

dakwoods
386Comments
62Reputation
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.
Go to Comment
jmt553
179Comments
51Reputation
EDIT: thanks to a couple people that have pointed this out, but this particular model does not have the heat pump. The ones that I have does and the model numbers are pretty similar, my apologies. These are still pretty good units though.

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.
Go to Comment
nottrollin
12KComments
12.2KReputation
But if you know how to read, the majority of those bad reviews have to do with units that came damaged, probably during shipping.

Or they're complaining about stuff like water drainage issues, which is due to the humidity of the places they chose to live in.

Or "I Had to hire a contractor to carry it up the stairs and install it." That's not Midea or Costco's fault.
Go to Comment

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

63 Comments

Sign up for a Slickdeals account to remove this ad.

Aug 23, 2025 4:55 PM
179 Comments
Joined Jun 2017
jmt553Aug 23, 2025 4:55 PM
179 Comments

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

EDIT: thanks to a couple people that have pointed this out, but this particular model does not have the heat pump. The ones that I have does and the model numbers are pretty similar, my apologies. These are still pretty good units though.

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.
3
1
Aug 23, 2025 5:08 PM
2.6K Comments
Joined Apr 2013
mja28Aug 23, 2025 5:08 PM
2.6K Comments
this one got a heat pump?
1
Aug 23, 2025 5:22 PM
668 Comments
Joined May 2011
yuqian_liAug 23, 2025 5:22 PM
668 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.
This comparing to the windows u shared AC?? Parent's place doesn't have the up and down window.. will this work??
Aug 23, 2025 5:22 PM
252 Comments
Joined Aug 2014
AnonymousA5351Aug 23, 2025 5:22 PM
252 Comments
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.
2
8
Aug 23, 2025 5:27 PM
2.9K Comments
Joined May 2015
justyeAug 23, 2025 5:27 PM
2.9K Comments
Quote from AnonymousA5351 View quoted comment :
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?
Aug 23, 2025 5:28 PM
18 Comments
Joined Dec 2021
callumjonesAug 23, 2025 5:28 PM
18 Comments

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

Quote from AnonymousA5351 View quoted comment :
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.
Mshield (the ionizer) can be turned on/off. It doesn't just force you to ionize all the time.
2
Aug 23, 2025 5:46 PM
4.7K Comments
Joined Jun 2004
i3igheadAug 23, 2025 5:46 PM
4.7K Comments
I have this unit and it has negative pressure issues and also humidity problems. some units also have issues with ridding of the condensate so you have to deal with a bucket.

I have the non duo version which had humidity issues also but no condensate issue.
1

Sign up for a Slickdeals account to remove this ad.

Aug 23, 2025 5:51 PM
2K Comments
Joined Oct 2004
PassionsAug 23, 2025 5:51 PM
2K Comments
Tons of 1 star review on costco's site. Mostly poor quality related. No thanks!
1
6
Aug 23, 2025 6:10 PM
12K Comments
Joined Feb 2012
nottrollinAug 23, 2025 6:10 PM
12K Comments

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

Quote from Passions View quoted comment :
Tons of 1 star review on costco's site. Mostly poor quality related. No thanks!
But if you know how to read, the majority of those bad reviews have to do with units that came damaged, probably during shipping.

Or they're complaining about stuff like water drainage issues, which is due to the humidity of the places they chose to live in.

Or "I Had to hire a contractor to carry it up the stairs and install it." That's not Midea or Costco's fault.
Last edited by nottrollin August 23, 2025 at 11:13 AM.
2
2
Aug 23, 2025 6:12 PM
1.5K Comments
Joined Sep 2006
linrickAug 23, 2025 6:12 PM
1.5K Comments
I bought this unit Sunday at regular price of $449.99. It was the only one left with no other inventory anywhere near me. But, I'm returning this as the window unit with same specs are marked down to $269.97.
Aug 23, 2025 7:06 PM
217 Comments
Joined Feb 2022
JollyLake715Aug 23, 2025 7:06 PM
217 Comments
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?
Aug 23, 2025 7:16 PM
1K Comments
Joined Jan 2008
Armaan1Aug 23, 2025 7:16 PM
1K Comments
This thing is a energy hog. Be warned, your electric bills will double.
1
Aug 23, 2025 8:54 PM
129 Comments
Joined Feb 2024
MarkCalunAug 23, 2025 8:54 PM
129 Comments
Quote from AnonymousA5351 View quoted comment :
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.
Where did you get that info? I recall that was only for Ozone generating air purifiers. MShield function has to be turned on manually. You don't have to run it.
Aug 23, 2025 8:57 PM
181 Comments
Joined Feb 2021
OliveActivity9779Aug 23, 2025 8:57 PM
181 Comments
Quote from AnonymousA5351 View quoted comment :
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

Sign up for a Slickdeals account to remove this ad.

Aug 23, 2025 8:58 PM
181 Comments
Joined Feb 2021
OliveActivity9779Aug 23, 2025 8:58 PM
181 Comments
Quote from Armaan1 View quoted comment :
This thing is a energy hog. Be warned, your electric bills will double.
does the invertor tech not help in this regard?

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

Home & Home ImprovementLarge AppliancesAir ConditionersOccasionsLabor DayMideaCostco Wholesale