Best Room Air Conditioner Review 2021

Last Updated: June 9, 2021

When the temperatures begin to climb, efficient air cooling in the home becomes very important. Our team found these units, with their dehumidification and filtration options, to be the most efficient and best room air conditioner units on the market.

by AC Rated
Best Room Air Conditioner

While the best central air conditioner systems can be incredibly effective in terms of instant results, often they are not the most energy-efficient solution, and if budget is an important consideration for you, perhaps the best room air conditioner appliance might be a better option.

Some of the world’s leading names in cooling and power generation market a range of cooling options, including the best portable air conditioner and free-standing appliances as well as split and ductless systems. Our team have assessed the available options in the portable and free-standing appliance sector for the purposes of this post.


Best Room Air Conditioner Review

Check out our team’s verdict on great air conditioner units from Honeywell, LG Electronics, NewAir and Whynter in this roundup of the best room air conditioner appliances.


Best Room Air Conditioner Brand Name & Model Check Price
Honeywell MN10CESWW > Check Price >
LG LP1415WXRSM > Check Price >
NewAir AC-10100E > Check Price >
LG LP1215GXR > Check Price >
Whynter ARC-143MX > Check Price >



1. Best Room Air Conditioner Review – Honeywell MN10CESWW

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Honeywell comes in at the top of our review, right off the bat with a powerful 10000 BTU room air conditioner that combines value for money with useful features and tough-to-beat energy efficiency.

The Honeywell MN10CESWW combines powerful air flow and appealingly quiet operation to effectively and efficiently cool rooms of up to 450 square feet.

This unit is no-bucket and non-drip, operating by means of an auto-evaporation system. It is also a useful dehumidifier, with the capability to extract up to 66 pints of moisture from the hour every 24 hours. The machine’s digital LCD display and featherlight touch controls make it a dream to use.

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2. Best Room Air Conditioner Review – LG LP1415WXRSM

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LG has a worldwide reputation as a manufacturer of superior household electronics, and the LG LP1415WXRSM is no exception to the general rule. This air conditioner incorporates wi-fi technology also, so in addition to the system’s easy-to-use LED display panel and remote control, you will also be able to switch on/off and control this appliance remotely via a smartphone app.

This appliance is not only a 14,000 BTU air conditioner (which, you’ll be glad to know, uses the standard 115V electrical outlet), it is also an air purifier (with a washable mesh filter that cleans the air as well as cooling it), and a dehumidifier that can extract up to 3.4 pints of moisture from the air per hour.

With its easy-roll caster wheels allowing for easy movement of the unit in addition to features such as multiple speeds, timer, Energy Saver mode and an auto-swing top air discharge, the LG LP1415WXRSM is one of the best room air conditioner units on the market currently.

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3. Best Room Air Conditioner Review – NewAir AC-10100E

Image Source: amazon

This is a strikingly compact air conditioner from New Air that will blend in well with any room in which it is situated, and is a solid air handling performer too. It will not only cool, but also ventilate and dehumidify, most effectively in spaces of up to 325 square feet.

The NewAir AC-10100E minimises energy consumption thanks to its cutting-edge energy-efficient technology, and its auto-evaporative system that will allow for hours of continuous operation without draining.

It’s also incredibly easy to use and adapt to your own requirements, with a range of customisable cooling options and temperature settings, as well as a 12-hour programmable timer and a sleep mode function. The unit is supply with an easy window installation kit.

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4. Best Room Air Conditioner Review – LG LP1215GXR

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The second appliance from LG Electronics in our review of the best room air conditioner appliances, the LG LP1215GXR is a portable 12,000 BTU air conditioner, that is ideal for use in rooms of up to 300 square feet.

In addition to this cooling efficiency, the LG LP1215GXR is also a dehumidifier, mixing the cool dry air with the warm air to extract up to 1.2 pints of moisture from the air every hour.

Oscillating air vent technology has been devised to circulate air more efficiently, so you can say goodbye to hot spots, and the 24-hour timer is a great option if you want to programme a schedule that will keep your living space comfortable throughout the day so that things are exactly the way you like them when you arrive home.

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5. Best Room Air Conditioner Review – Whynter ARC-143MX

Image Source: amazon

Whynter’s ARC-143MX is a 14,000 BTU dual-hose unit that incorporates with 3M antimicrobial filter, which is designed to remove particles from the air including dust and pet hair, and also inhibit the growth of mould and mildew. The filter makes the unit particularly suitable for environments with mission-critical equipment, such as a server rooms, data centres and wiring closets, but really, it’s eminently suitable for any space of up to 50 square feet.

This unit’s patented advance auto-drain technology uses and recycles moisture collected during the cooling process to produce cool air, while the dual-hose operation of the system means that it’s extremely fast. Its dehumidification and filtration functionality make this unit a versatile must-see in any round-up of the best air conditioners.

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