10 Best Stand Alone Air Conditioner of September 2025

• QUIET & POWERFUL - Our 10,000 BTU compact air conditioner (16.5 x 11.5 x 26 in,) will keep you cool and comfortable all summer. An adjustable fan speed cools the air to 65°F at the coolest setting. Sleep mode makes it extra quiet while you rest.
• PERFECT FOR SMALL ROOMS - This floor-standing portable AC unit provides steady, fast, effective cooling for rooms 150 - 250 sq. ft. It’s the ideal small air conditioner for dorms, apartments, cabins, campers, offices, bedrooms, or living rooms.
• SIMPLE & QUICK TO INSTALL – Just roll this portable air conditioner with wheels into any room with a double hung or sliding window. Attach the included hose (4’ 11”) & window adapter, & plug it in to an outlet! When not in use, just unhook & store.
• EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back.
• 3-in-1 FUNCTIONALITY - Combines 3 energy efficient functions for all of your cooling & ventilation needs with cool, fan, & dehumidifying modes all in one machine. Bucket-less, self-evaporating operation makes your living space cool, clean and dry.

BLACK+DECKER

• PORTABLE A/C HEATER COMBO UNIT - Our 14,000 BTU dual compact air conditioner & heater will keep you cool & comfortable during the summer, & toasty warm in the winter. An adjustable fan speed cools the air up to 55 °F, and heats up to 81 °F
• HEATS & COOLS MOST ROOMS - This portable heat & AC unit provides steady & fast cooling and heating for rooms up to 350 sq. ft. It’s the perfect air conditioner & heater for dorms, apartments, cabins, campers, offices, bedrooms, garages, or living rooms
• SIMPLE & QUICK TO INSTALL – Since it’s easy to move around with handles & castor wheels, just roll it into any room with an accessible double hung or sliding window. Attach the included hose (4’ 11” long) & window adapter, & plug it in to an outlet
• EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back
• 4-in-1 FUNCTIONALITY – Combining 4 energy efficient modes in one small unit (17.1 x 13.8 x 28.1 in.), the COOL, FAN, HEAT & DEHUMIDIFY settings meet all of your home cooling, heating, & ventilation needs. SLEEP, MAX & AIR SWING functions control airflow

BLACK+DECKER

• PORTABLE A/C HEATER COMBO UNIT - Our 12,000 BTU dual compact air conditioner & heater will keep you cool & comfortable during the summer, & toasty warm in the winter. An adjustable fan speed cools the air up to 55 °F, and heats up to 81 °F.
• HEATS & COOLS SMALL ROOMS - This portable heat & AC unit provides steady & fast cooling and heating for rooms up to 250 sq. ft. It’s the perfect air conditioner & heater for dorms, apartments, cabins, campers, offices, bedrooms, garages, or living rooms. Ideal to use in spaces that cannot support traditional window-mounted AC units
• SIMPLE & QUICK TO INSTALL – Since it’s easy to move around with handles & castor wheels, just roll it into any room with an accessible double hung or sliding window. Attach the included hose (4’ 11” long) & window adapter, & plug it in to an outlet.
• EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back.
• 4-in-1 FUNCTIONALITY – Combining 4 energy efficient modes in one small unit (17.1 x 13.8 x 28.1 in.), the COOL, FAN, HEAT & DEHUMIDIFY settings meet all of your home cooling, heating, & ventilation needs. SLEEP, MAX & AIR SWING functions control airflow.

BLACK+DECKER

• POWERFUL PORTABLE AIR CONDITIONER - Beat the heat without having a central ac at home or office with Vremi Portable Air Conditioner. ASHRAE rated at 14,000 BTU (8,400 BTU 2017 SACC Standard) this machine is suited to cool a 500 to 650 square feet room. This unit is designed to be installed in standard windows with a horizontal opening.
• PROGRAMMABLE CONTROL PANEL - Our high-quality air conditioning machine is designed for comfort. It features an easy-to-read LED display and includes a compact remote control to easily set the time, temperature speed, and mode from across the room. Its 24-hour adjustable timer can cool a room to a temperature between 18°C-32°C (64°F-90°F) and has 4 modes to choose from - Cool, Fan, Dry, and Sleep.
• HASSLE-FREE INSTALLATION - This 17.3 x 28.2 x 14 inches portable aircon is equipped with built-in rolling wheels for you to easily move the unit to any room with an accessible window. All accessories are included and no need to use special tools or lift the unit to install. Simply roll the AC to your preferred cooling area, attach the 5.6 ft hose and the window slide adapter, turn the unit on and viola! You’re good to go!
• WASHABLE DUAL-LAYER AIR FILTER - To provide you clean cool air, we designed this air conditioner with a removable and washable double-layered filter. To extend the life and performance of this unit, we recommend you to clean the filter every week of operation

Vremi

• ❆【Fan Mode and 2 Optional Fan Speed: 】The multiple functional portable air conditioner offers fan mode as well as cool, dry, and sleep modes to meet various needs of users. Under the fan mode, there are 2 fan speeds accessible, and you can set the high or low speed as you wish.
• ❆【Sleeping Mode and Quiet Operation:】 In sleeping mode, this air conditioner will become quiet (Noise≦56dB). It’s able to maintain the temperature while you are sleeping. And you can use the 24-hour timer in combination to free you from additional worries.
• ❆【Fahrenheit and Celsius Display Data:】Like most air conditioners, the temperature settings of this portable air conditioner range from 64℉ to 86℉. The temperature display data can be switched between Celsius and Fahrenheit, the default is Celsius, but you can choose the unit that you are familiar with.
• ❆【Remote Control and Wide Coverage: 】There is a modern design that everyone loves, the remote control, that allowing you to set it up conveniently. The compact 8000 BTU/H air conditioner unit delivers fast, effective cooling for spaces up to 230 Sq.Ft in home, office, cabin or camper.
• ❆【Multiple Safety Protection Functions:】This air conditioner features multiple safety protection functions, such as 24-hour timer to set times as needs, water full indicator light to show when the internal bucket is full, self-evaporation system design to save energy and efforts of pouring water, etc. Notice：The most suitable window size is 22.5-42inch. This product is not for sale in california.

COSTWAY

• Award Winning: 1. Good Housekeeping's "2020 Best Overall" and "can cool down a room faster than other portable units" 2. Consumer Report's 2020 Highest Score; UL listed
• Dual hose operation; Cools up to a 500 square feet space(ambient temperature and humidity may influence optimum performance); Dehumidifying capacity: 71 pints per day; Air Flow (at high speed): 430 m3/h / 253 CFM; 3 fan speeds
• Three operational modes: Air conditioner, dehumidifier or fan; Cooling capacity 14000 BTU (ASHRAE-128 Standard) / 9500 BTU (DOE+ 2017 Standard); Maximum power consumption: 1300 W / 11.6 A.Never use harsh chemicals, oil-based products, detergents, chemically treated cloths orother cleaning solutions. These could possibly damage the body of the air conditioner
• 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
• Includes complete set window kit, remote control, activated carbon air filter, washable pre-filter, user manual and storage bag; Casters for easy mobility
• Extendable exhaust hose (up to 60″); Window kit dimension: 6.5″ W x 20″ L (minimum), 46″ (maximum); Unit dimensions: 19″ W x 16″ D x 35.5″ H

Whynter

• EasyCool : The Midea Portable Air Conditioner, ASHRAE rating 8, 000 BTU (5300 BTU 2017 SACC standard) delivers fast, effective cooling for spaces Up to 150 sq. ft while simultaneously providing fan and dehumidification functions in any home, bedroom, office or cabin; creating a relaxing and comfortable environment
• EFFORTLESS OPERATION：Enjoy the simplicity and comfort of digital controls. The portable AC features an easy-to-read LED display and includes a compact remote control (batteries included) to easily set the time, temperature, and mode, from across the room. Its 24-hour adjustable timer can cool a room to a temperature between 62°F-90°F and has 3 modes to choose from - cooling, dehumidification, fan only.
• EASY INSTALLATION：Roll your air conditioner to the preferred cooling area, attach the 5ft hose and adjustable window brackets (fits openings from 26. 5-48“), 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.
• WASHABLE AIR FILTER: To provide clean cool air, we designed a removable and reusable air filter to protect your family and living space from dust and pet hairs. We recommend you clean the filter every week of operation in order to extend the life and performance of this unit.
• WORLDWIDE - Midea is the world’s largest provider of air conditioning products. As a testament to our dedication to quality, we offer a one year parts and labor on this product
• Voltage: 110 volts
• Wattage: 850 watts

Midea

• Dimensions: 17.4’’ L x 13.4’’ W x 32.1’’ H | Weight: 62.1 lbs
• Your purchase includes: Portable Air Conditioner, Window Mount Kit, Quick Setup Guide, Remote Control (batteries not included).
• Handy and portable the SereneLife portable air conditioner system features a lightweight handy sleek body design intended to be used in the bedroom living room or garage at home or office It features rolling wheels for easy portability
• 3 operating modes The compact floor AC indoor cooler conditioning unit features a simple electric Plug in operation and has 3 modes - Cooling dehumidifier and fan Also features automatic swing mode W/ moving wind vent for maximum air circulation
• Built-in dehumidifier you don’t only get the cooling effect of the portable AC but it also helps reduce humidity levels acts as purifier which makes your home less hospitable to allergens such as dust mites & mildew by selecting dehumidifier mode
• Remote control features a digital touch button control panel which includes the power mode timer temperature and fan speed settings Other functions such as unit selector (°C/°F) Sleep key can be adjusted using the included remote control
• 10 000 BTU Cooling power with 1150W rated power and 10 000 BTU Cooling power the cold air can cover a room up to 350+ sq Ft Air flow is rated at 290 M3/hr moisture removal/dehumidifier at 1 5 liters/hr W/ an operating noise level of only 52-56 dB

SereneLife

• Four Operational Modes: Auto, Cool, Dehumidify, and Fan. Fan settings include 3 speeds with directional air discharge louvers
• Adjustable temp (62 -88 degrees F), 24 hour programmable timer, 71 pints/day dehumidifying capacity with continuous and manual drain methods
• Noise level: <55 dBA , air flow (at high speed): 497m3/h / 292 CFM, maximum power consumption: 1580W / 11.9A, power supply: 115 V / 60Hz
• UL listed, LCDI plug, R-32 refrigerant, single hose, 3M Filter and Silver shield washable pre-filter
• Remote control, extendable exhaust hose (up to 59"), and upgraded plastic window kit (up to 48") included

Whynter

• QUIET & POWERFUL - Our 8,000 BTU compact air conditioner (16.5 x 11.5 x 26 in,) will keep you cool and comfortable all summer. An adjustable fan speed cools the air to 65°F at the coolest setting. Sleep mode makes it extra quiet while you rest
• PERFECT FOR SMALL ROOMS - This floor-standing portable AC unit provides steady, fast, effective cooling for rooms up to 200 sq. ft. It’s the ideal small air conditioner for dorms, apartments, cabins, campers, offices, bedrooms, or living rooms
• SIMPLE & QUICK TO INSTALL – Just wheel this portable air conditioner into any room with a double hung or sliding window. Attach the included hose (4’ 11”) & window adapter, & plug it in to an outlet! At the end of the season, just unhook & store
• EASY TO USE & CLEAN – The simple remote control & top-mounted LED display with 24-hour timer allow you to precisely control the air temperature. To clean the filter, just slide it out twice a month, rinse it thoroughly under running water, & put it back
• 3-in-1 FUNCTIONALITY - Combines 3 energy efficient functions for all of your cooling & ventilation needs with cool, fan, & dehumidifying modes all in one machine. Bucket-less, self-evaporating operation makes your living space cool, clean and dry

BLACK+DECKER