The Best Ac For 400 Sq Ft of 2021 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Ac For 400 Sq Ft of 2021. Check our ranking below.

2,688 Reviews Scanned

Rank No. #1
COSTWAY 10000 BTU Portable Air Conditioner with Remote Control, Energy Efficient for Rooms Up to 400 Sq. Ft, Cooling, Dehumidifying, Fanning, Sleeping Mode, Time Settings, Clear LED Display (10000BTU)
  • ❄️【User-oriented Multiple Functions Modes: 】This portable air conditioner offers cooling, dehumidifying, fanning and sleeping modes to meet various needs of users. In sleeping mode, this air conditioner will become quiet (Noise≦52dB). It’s able to maintain the temperature while you are sleeping.
  • ❄️【Convertible Fan Speed and All-day Timer:】Under the fan mode, there are 2 fan speeds accessible, and you can set the high or low speed as you wish. There is an energy saving 24-hour programmable timer, allowing the air conditioner unit to shut down automatically once reaching the usage time.
  • ❄️【Strong Air Flow Rate and Wide Coverage:】The compact 10000BTU/H air conditioner unit delivers fast, effective cooling for spaces up to 400 Sq.Ft in home, office, cabin or camper. It comes with a strong air flow rate of 300m3/h that ensures air circulation and replaces with the outdoor fresh air in a few minutes.
  • ❄️【Water Full Warning and Long Drain Hose:】Among various protection functions, this unit is designed with a water-full control and warning, keeping your floor or carpet from getting wet. The drain hose provided is long with a length of 10ft, allowing you to drain the water to the bathroom easily.
  • ❄️【Easy Moving Casters and Remote Control:】At the bottom of the air conditioner, there are four all-direction casters, allowing it to roll freely from room to room. It's worth mentioning that the air conditioner features a modern design that everyone loves, the remote control, that allowing you to set it up conveniently.
Rank No. #2
Whynter ARC-12SDH 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Storage Bag for Rooms up to 400 sq ft, Multi
  • 12,000 BTU (ASHRAE) / 7,900 BTU (SACC) cooling capacity
  • AWARD WINNING : 1. Good Housekeeping's "Best Portable Air Conditioners to Buy in 2019" 2. Consumer Report's 2019 Top 2 highest Score
  • Four operational modes: air conditioner, heater, fan or dehumidifier. This unit can cool / heat up to a 400 square feet space (ambient temperature and humidity may influence optimum performance)
  • Full thermostatic control (61°F - 89°F cooling)/ (61°F – 77°F heating) with digital readout, 24 hour programmable timer; Eco-friendly CFC free Green R-410A refrigerant; Patented auto drain function fully exhausts all condensate automatically in most environments
  • Full installation set includes extendable exhaust and intake hose (up to 60") and window kit (up to 46") Max. window kit length = 46" , Min. window kit length = 20".
Rank No. #3
Shinco 12,000 BTU Portable Air Conditioners with Built-in Dehumidifier Function, Fan Mode, Quiet AC Unit Cools Rooms to 400 sq.ft, LED Display, Remote Control, Complete Window Mount Exhaust Kit
  • ✅【EASY-COOL】- Compact 12,000 BTU Portable Air Conditioner Unit, Delivers Fast, Effective Cooling for Spaces Up to 400 Sq.Ft in Home, Bedroom, dorms, apartments, cabins, campers, offices, bedrooms, or living rooms. When the room is cool enough, switch to the first speed level,this air conditioner will become quiet(Noise ≤52dB), enough to maintain the temperature while you are sleeping.
  • ✅【3-in-1 FUNCTIONALITY】- It has 3 modes to choose from - cooling, dehumidification, fan only. Air conditioner cools your room quickly; 3-speed fan satisfies your needs. With 43.2L/day dehumidifying capacity, the dehumidifier function is a quick fix for stopping the growing of bacteria and mold in hot and humid environment.Bucket-less, self-evaporating operation makes your living space cool, clean and dry.
  • ✅【EASY-TO-USE】- LED display and simple selections control panel,full-featured remote, 24-hr timer, plus a quiet <52dB output on Low speed mode for disturbance-free nights.Four castors wheels make it easy to move from place to place, You can place it on bedroom, study, living room, kitchen, small office, RV, party and etc.
  • ✅【QUICK INSTALLATION】- Your purchase includes: Portable Air Conditioner, Sliding Window Mount Kit, Quick Setup Guide, Remote Control (batteries not included). Move your air conditioner to the preferred cooling area, attach the 59" hose and adjustable window brackets (fits openings from 25 - 51“), turn the unit on and let your cooling begin! An exhaust hose and window kit are included, no extra tools are needed for assembly. Installation instructions are simple and can be done by anyone.
  • ✅【Perfect After Service】- All of Shinco Portable Air Conditioner Units are covered with 30-Days Money Back, 1 Year Warranty and lifetime expert tech support. If you have any problems, please contact our team to get help.we will reply to you within 24 hours and help you solve the problems.
SaleRank No. #4
Whynter Elite ARC-122DS 12,000 BTU Dual Hose Portable Air Conditioner, Dehumidifier, Fan with Activated Carbon Filter Plus Storage Bag for Rooms up to 400 sq ft, Multi
  • 12,000 BTU (ASHRAE) / 7,000 BTU (SACC) cooling capacity
  • Three operational modes: air conditioner, fan or dehumidifier. This unit can cool up to a 400 square feet space (ambient temperature and humidity may influence optimum performance)
  • Full installation set includes extendable exhaust and intake hose (up to 60") and window kit: 6.5" W x 20" (min)/ 46" (max) L
  • AWARD WINNING : 1. Good Housekeeping's "Best Portable Air Conditioners to Buy in 2019" 2. The New York Times Wirecutter named "the most efficient and fastest cooling portable AC"
  • Full thermostatic control (61°F - 89°F) with digital readout, 24 hour programmable timer; Eco-friendly CFC free Green R-32 refrigerant; Patented auto drain function fully exhausts all condensate automatically in most environments
Rank No. #5
Portable Air Conditioner, 12000 BTU, 400 sq.ft, Standing Room AC Unit with LED Display, Remote Control and 24-Hour ON/OFF Programmable Timer, Low Noise Level, ETL Certified
  • COOLING- 12,000 BTU Cooling Capacity (R410A refrigerant) cover up to 400 sq.ft. Great for using in bedroom, home living room, office, apartment, or other personal spaces.
  • MULTI-FUNCTION – Cooling / dehumidifier / fan three function in one unit . With 2 fan speed optional . Tem. Setting is only available in Cooling function .
  • DISPLAY & TIMER - LED DISPLAY and simple select control panel features mode selection button, up/down temperature adjustments, fan speed selection and timer. TIMER allows you to turn unit on and off at desired.
  • SELF-EVAPORATION - Automatic self-evaporation technology - no bucket to empty (except in some high humidity area) - Built-in dehumidifier removes up to 50 pints/24 hours with continuous drain option for long unattended operation. Condensing water can Pump to Evaporator self to support energy and make high efficient .
  • WINDOW KIT - Venting it by a simple three step process with WINDOW KIT (Included). Simply connect the vent hose to the back of the unit, remove the cap from the window vent kit and connect it to the exhaust hose.
SaleRank No. #6
Whynter ARC-12S 12,000 BTU Portable Air Conditioner, Dehumidifier, Fan with Activated Carbon Filter Plus Storage Bag for Rooms up to 400 sq ft, Multi
  • 12,000 BTU (ASHRAE) / 5,000 BTU (SACC) cooling capacity
  • Three operational modes: air conditioner, fan or dehumidifier ; Noise level (dBA): < 52.5
  • Full thermostatic control (61°F - 89°F) with digital readout, 24 hour programmable timer. Maximum power consumption: 1080 W / 9.5 A
  • Remote control, upgraded plastic window kit (46" max.), carbon air filter and washable pre-filter included, Eco-friendly CFC free Green R-410A refrigerant
  • Dehumidifying capacity of 91 pints per day, 3 fan speeds. Includes extendable exhaust hose (up to 60") and window kit: 6.5" W x 20" (min)/ 46" (max) L
Rank No. #7
AireMax 12000 BTU 3-in-1 400 Sq Ft with Remote Control, 2 Washable Filters, Exhaust Hose and Window Kit Portable Air Conditioner for Rooms, White
  • With 3 operating modes – cool, fan, and dry – this versatile unit keeps your area cold. 2 fan speeds, 2-way adjustable front louvers, and dehumidification up to 60 pints per day keep you reliably comfortable
  • Product size – 14.2” D x 11.8” W x 30” H | Weight – 63 lb. | BTU – 12,000 | Cover area – 400 sq. ft. | Hose size – 11”-59” | Temperature range – 62.6ᵒ-86ᵒ F | Voltage – 115V/60Hz | Noise level – 60 dB
  • Push conveniently on four rolling casters using the integrated side handles | Easily adjustable, mobile window installation kit is optimum for both vertical and horizontal windows
  • Dual filters catch pet hair, dust, and other particles to keep them from clogging internal components | Wash and dry the filter periodically to keep your machine in working efficiently
  • Comes with Exhaust Window Installation Kit, Remote Control with batteries and Manual | Soft-white LED display is modern and sleek without being obtrusive | Top-mounted, easy-to-use electronic controls are supplemented by multifunction remote control
Rank No. #8
Honeywell MN12CES Portable Air Conditioner with Fan & Dehumidifier with Thermal Overload Protection, 12000 BTU, Black, Rooms Up To 400-550 Sq. Ft
  • [3-IN-1 APPLIANCE] 3-in-1 Honeywell Portable AC with Fan & Dehumidifier cools a room up to 400-450 square feet. Automatic vertical wind motion helps distribute powerful cool/warm air evenly for fast & consistent cooling/heating. 12000 BTU (ASHRAE-128 Standard) / 6500 BTU (DOE+ 2017 Standard)
  • [ADVANCED SAFETY FEATURES, TRUSTED AMERICAN BRAND] Thermal overload protection for added safety & peace of mind. Dual Dust Filtration extends product life and performance by keeping internal system clean. UL, ETL certified to meet applicable & strict U. S. safety standards. ISTA-6 certified packaging for advanced product protection during delivery. One Year Wty with Local U. S. Support Team ready to help.
  • [DUAL DUST FILTRATION, EASY SET UP & MAINTENANCE] Dual filters designed to protect from dust & hair to extend product life & performance. Filters clean easily under a faucet for easy maintenance. Full set window kit included for quick & easy installation for vertical and horizontal windows (max. Hose length is 4 feet)
  • [DESIGNED FOR COMFORT] Full digital controls with 3 fan speeds, 24-hour energy saving timer & remote control with convenient digital display. Stress-free auto evaporation in cooling mode – no bucket to empty (except in areas with high humidity).
  • [STAY DRY, DEHUMIDIFY] Built-in dehumidifier removes up to 69 pints/24 hours with continuous drain option for long unattended operation
SaleRank No. #9
Whynter Elite ARC-122DHP 12,000 BTU Dual Hose Portable Air Conditioner and Heater, Dehumidifier, Fan with Activated Carbon Filter Plus Autopump and Storage Bag for Rooms up to 400 sq ft, Multi
  • 12,000 BTU (ASHRAE) / 7,000 BTU (SACC) cooling capacity
  • Four operational modes: air conditioner, fan, heat or dehumidifier. This unit can cool up to a 400 square feet space (ambient temperature and humidity may influence optimum performance)
  • Remote control, activated carbon air filter, washable pre-filter, and product manual packaged inside exhaust hose; Noise level (dBA): <52; AutoPump function that pumps out excess condensate.
  • AWARD WINNING : 1. Good Housekeeping's "Best Portable Air Conditioners to Buy in 2019" 2. The New York Times Wirecutter named "the most efficient and fastest cooling portable AC"
  • Eco-friendly CFC free Green R-32 refrigerant; Full installation set includes extendable exhaust and intake hose (up to 60") and window kit (up to 46") Max. window kit length = 46" , Min. window kit length = 20".
Rank No. #10
Ukoke USPC01W Smart Wifi Portable Air Conditioner, Works with Alexa & Mobile App Control, 12000BTU, 4 in 1 AC Unit with Cool, Heat, Dehumidifier & Fan, up to 400 Sq. ft, white
  • ★ Voice Control – Ukoke’s Smart Portable Air Conditioner HVAC Unit works with Alexa to easily turn ON/OFF your AC unit and adjust your desired temperature all by a voice command.
  • ★ Mobile App Control – Download the Ukoke App in Apple App Store and Android Play Store to control your Portable AC anywhere with your smartphone, tablet or computer. Our App is your personal smartphone remote controller allowing users to easily control all Ukoke Smart Home products in one App, making home and family life easier.
  • ★ Traditional Remote Control – Manually control your Portable AC from the digital LED display panel and provided remote control.
  • ★ 4-in-1 Multi-Functional Appliance – 4 functions in 1 HVAC machine combining Cool, Heat, Dehumidifier and high, medium and low Fan mode with an added Swing function to adjust the wind direction.
  • ★ High-end technology -- 12K BTU cooling capacity cools up to 400 square feet of floor space, or a medium-sized room. Switch from Cooler to Heater warming up your room in less than 10 minutes. Eco-friendly R410A refrigerant and efficient compressor lowers noise down to 53 dB, enough to maintain your desired temperature while sleeping.

Last update on 2021-02-24 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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