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expiredShrewdSoda611 posted Aug 23, 2025 04:45 PM
expiredShrewdSoda611 posted Aug 23, 2025 04:45 PM

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

(In-Store Only)

$300

$480

37% off
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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Top Comments

dakwoods
365 Posts
58 Reputation
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.
jmt553
179 Posts
51 Reputation
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.
nottrollin
11581 Posts
11729 Reputation
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.

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Pro
Aug 29, 2025 04:31 AM
124 Posts
Joined Feb 2014
txdf
Pro
Aug 29, 2025 04:31 AM
124 Posts
Quote from GinnyMaive :
If you're ever bored, this is a pretty nerdy video about how AC works and why portable units are less efficient [youtube.com]. REALLY NERDY but presented in about as interesting a way as possible lol. He's also got a pretty good one about ... the microwave popcorn button but I'm not sure I'm really selling this well hahaha
Everything you've said is excellent, and I nearly posted that same Technology Connections video myself! It's a great primer on AC, portable units, window units, etc.

And here's the best to worst hierarchy of air conditioning solutions applicable to most people when it comes to efficiency, comfort, and versatility:

Central HVAC ($$$$) > Mini Split AC ($$$) > Window AC Unit ($$) > Portable AC Unit ($$) > Evaporative (Swamp) Cooler ($$/$)

The prices shown basically show your up front cost in buying the equipment/installation, but not what you pay over time with electricity usage.

A central HVAC or Mini-Split (though much more pricey, and for most NOT DIY to install) will generally be much more efficient than a Window AC Unit, which in turn is generally much more efficient than a Portable AC Unit. A swamp cooler can be a cheaper effective tool but not comfortable or functional in moderate to high humidity climates.

The sweet spot for most people without significant DIY or Pro installation is for sure a Window AC
Unit. These are just so much more efficient and quiet indoors, and if you have an outward facing window and no HOA that will complain about it, it's the way to go.

I only used a Portable AC Unit for a while out of desperation, because HOA doesn't allow Window AC units.
Last edited by txdf August 28, 2025 at 10:34 PM.
Aug 29, 2025 06:03 AM
442 Posts
Joined Apr 2010
AoeRORAug 29, 2025 06:03 AM
442 Posts
no heat no bruno
Sep 06, 2025 09:35 PM
26 Posts
Joined Oct 2022
AmusedPear909Sep 06, 2025 09:35 PM
26 Posts
Quote from akronguy :
Quote from AmusedPear909 :
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.
Why not just open the window in that case?
i have an attic that isn't ventilated well and black roof tiles on top of that. it absorbs so much heat during the day that opening a window and using a fan to suck in cold air doesnt work - too much radiant heat.

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