The Best portable battery operated ac of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best portable battery operated ac of 2022. Check our ranking below.

2,484 Reviews Scanned

SaleRank No. #1

Portable Air Conditioner -5200mAh Rechargeable Mini Air Conditioner with 3 Speed Settings, 5-10 Hours Runtime,Quiet Desk Cooling Fan, Personal Air Cooler for Home, Bedroom, Travel, Office, Outdoor

【Ultra Quiet and Comfortable Sleep】The portable air conditioner has an upgraded system that can work effectively at low noise levels, with 3 wind speeds to choose from, you can adjust it freely according to your needs, the air conditioner allows you to comfortably spend the night at the appropriate temperature and low level noise
【5200mAh Powerful Life】Portable air conditioner built in 5200mAh rechargeable battery has strong battery life to make this USB air cooler can be used wirelessly, easily carry to anywhere.Air Conditioner fan is perfect for your room, bedroom, kitchen, office, dorm room, car, on your desktop and table top and so on
【Energy Saving】The air cooler fan operates at a low energy consumption, much cheaper than running a Freon air conditioner in hot summer days. The mini air conditioner is both space efficient and economical. It is an essential tool for hot summer
【Personal Air Cooler & Air Humidifier 】It is not only an personal air cooler, but also an air humidifier. Cools, humidifies for better air, can moisturize skin and air humidification, keep away from dry air, enjoy your moist cooling summer. A full tank of water can continuously keep spraying for 2.5-12 hours (depending on the speed).
【Adjustable Wind Speeds】 3 wind speeds (high,Medium,low) can be adjusted, manual up-down to adjust blowing direction within 30℃ and with spray function to meet your different needs, you coulde choose the most suitable one to enjoy your life

SaleRank No. #2

Battery Powered Portable Air Conditioner,6000mAh Rechargeable Small Air Conditioner Fan for Room,Personal Air Cooler with Mist,Timer & Light,Mini AC Unit Cooling Fan for Bedroom,Camping,Tent,Car

❄️【High Efficient Cooling Fan】Azoiito Portable Air Conditioners Fan adopt high-torque motor and 5-blades fan and 2 Ultrasonic Nebulizer.Which can convert hot airflow into 65-75°F cool,fresh airflow fast.Great small air cooler fan for bedroom,dorms,office,tent,garages,camping etc.
❄️【Rechargable with Build-in 6000mAh Battery】The Portable Air Conditioners Fan with build-in large capacity battery,to offering long-lasting operation,max up to 8H duration(low speed without sray).Come with Type C USB cable and adapter,it can also powered by power bank.Small and compact shape mini air cooler,ideal mini for camping,tent,picnic,car,outdoor party ect.
❄️【3 Wind Speeds】The personal cooling fan has 3 wind speeds modes options--Low/Mid/Strong wind,you can choose the modes accordding to your request. Adopts high-torque motor and 5-blades fan,powerful but quiet working,the low speed wind noise＜50dB.Bring you into a cooling and peace summer.Suitable for study,working,exercise,relax and sleep.
❄️【3 Mist Modes】The portable evaporative cooler with 700ml water tank and 3 spray mode,no mist-natural wind,low mist--cool wind;high mist--cold wind.It's not only a fan but also a humidifier,and It's advice to add ice cube into water,that will efficienct cooling the surrounding hot air,make you stay away from hot summer and enjoy the powerful,cool,refreshing airflow.
❄️【3 Timer&Colorful Night Light】You also can set the auto timer (2-4-8H) according to your needs. Additional,the mini air conditioner has 7 color night light and you can easily enjoy a romantic and charming atmosphere.A good partner especially for baby,kids,children,to give a peaceful,sweet splee in hot summer.

Rank No. #3

Yestono Portable Air Conditioners Rechargeable,5000mAh 3-Speed Small AC Fan,Portable Air Cooler with Remote,Timer function,7-Color Night light,3-Level Mist modes,Personal AC for Office,Camping.

❄【5000mAh Battery,Intelligent Control】The Yestono Portable Air Conditioner built-in 5000 mAh large-capacity battery with Intelligent battery management chip, a single charge can provide ultra-long battery life, and the chip will intelligently control the charge and discharge, so that the battery life cycle than the ordinary battery twice.
❄【Powerful motor,Efficient Cooling】Yestono AC Fan is equipped with a unique high-performance three-phase motor, more powerful wind, more stable operation, improve the service life of ac unit, with a unique air duct design, 3 atomizing humidification holes, instantly provide you with strong, cool and refreshing air flow.
❄【3 speed & 3 Level spray mode】Yestono Mini Air Conditioner hashigh, medium and low wind speeds and 3 spray modes (natural wind/Low cold fog/High Cold fog) to be configurable for the combination of multiple modes and wind speeds, whether you want fast cooling or soft moisture. Can meet your needs, bring a cool touch to your summer.
❄【Remote Control & Timing function】Our Air Cooler is equipped with a remote control that can be easily adjusted while lying in bed or on the sofa with a 16.4-foot distance control. Air Cooler also supports three timing modes (2-4-8H), whether it is a deep sleep at night or a short nap in the afternoon, it can be precisely set, so that comfort and convenience will be with you to spend every good time.
❄【34 OZ waterless automatic protection tank 】 The cooling fan uses a 34OZ sealed water tank. It can work continuously for 8-10 hours after being filled with water to avoid frequent water refill. When the water is used up, the spray mode will automatically stop and the fan will automatically switch to natural wind. The Water level window allows you to view and control the water level at any time.

SaleRank No. #4

Portable Air Conditioners, 5000mAh Rechargeable Air Cooler with Remoter, Evaporative Personal Mini AC, 3 Wind Speed, 2-4-8H Timer, 3 Modes, Colorful Night Light, Portable AC for Room, Car, Camping

❄【Cool Down the Air Effectively】Our air conditioners use the triple ultrasonic nebulizer and upgraded motor double refrigeration technology. It can instantly produce cold air and make your room cool down to drop to 75℉. The air cooler of industry-leading technology help you keep away from hot environment. You also can adjust the shutters 120°up or down to direct airflow according to your desire.
❄【5000mAh Battery for 2 Power Choice】The Battery powered air conditioner offer two power options: plug-in and battery-powered. You can plug the mini air conditioner in for continuous use when a power outlet is nearby (the adaptor is included). For outdoor activities, you can choose the built-in battery-powered mode. 5000mAh battery can work continuously for 15 hours.
❄【Remote Control & Panel Control】The air cooler can be adjusted multi-function by remoter. 3 adjustable wind speeds (natural/med/high) and 3 wind modes ( strong cool, light cool, natural wind) can meet your individual needs. You also can set the auto timer (2-4-8H) according to your needs. At the same time, This portable air conditioner has clear panel control buttons, which can be easily operated and used by the elderly and children.
❄【Low noise & Low Energy Consumption】The air conditioner can work powerfully at a low noise level and make you enjoy cool, comfortable and quiet sleep in the night in summer. The energy consumption is not only very low of the 9W mini ac, but also the costs of the evaporative air conditioner is also generally cheaper to purchase and maintain than traditional air conditioners.
❄【Easy to use & Lightweight】The portable air conditioner is easy to use. You only need to fill the sink with water or ice cube and turn on the cooler fan. The AC is great for room, bedroom, car and office. It is lightweight and portable, both for outdoor camping and picnic. You can use the portable air conditioner anywhere.

Rank No. #5

AIRTHRYL 5 IN 1 Small Portable Air Conditioner, Evaporative Air Cooler with 3 Speeds, 2 Ice Packs, 5400mAh Built-In Battery, 1200ML Water Tank, 7H Smart Timer, Quiet Cooling Fan for Bedroom Office

❄️ 【𝟐𝟎𝟐𝟓 𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝟑𝐒 𝐂𝐨𝐨𝐥𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦】Thanks to the dual-motor power and ultrasonic nebulizer of the mini air conditioner, AIRTHRYL’s advanced cooling system delivers a blast of icy air in just 3 seconds — chilling the air from 80°F down to 59°F fast. And easily adjust the airflow angle up and down within a 120° range to direct cool air exactly where you need it.
🔋【𝟓𝟒𝟎𝟎𝐦𝐀𝐡 𝐁𝐮𝐢𝐥𝐭-𝐢𝐧 𝐁𝐚𝐭𝐭𝐞𝐫𝐲】The air conditioner portable has dual power options: use it plugged in via USB or go wireless with the powerful 5400mAh built-in battery. ⚡ Just 3-hour charge gives you 9–15 hours of wireless cooling— perfect for outdoor adventures, camping, or desk use. Stay cool anywhere — no outlet required!
❄️ 【𝟓-𝐈𝐍-𝟏 𝐀𝐂 𝐔𝐧𝐢𝐭 – 𝐅𝐚𝐧 + 𝐀𝐂 + 𝐇𝐮𝐦𝐢𝐝𝐢𝐟𝐢𝐞𝐫 + 𝐌𝐢𝐬𝐭 + 𝐋𝐢𝐠𝐡𝐭𝐬!】Perfect for dry climates and hot summers, 5 smart functions in one: ①🌬️ Fan Mode – No water needed, ideal for stuffy rooms. ②💧 Humidifier Mode – Adds moisture on dry days. ③❄️ Air Cooler Mode – With ice water + 2 upgraded ice packs, cools in just 3 mins! ④💦 2 Cool Mist Modes 💡 ⑤ 7 Soothing Night Lights.
❄️ 【𝟏𝟐𝟎𝟎𝐌𝐋 𝐋𝐚𝐫𝐠𝐞 𝐖𝐚𝐭𝐞𝐫 𝐓𝐚𝐧𝐤 + 𝟐 𝐈𝐜𝐞 𝐁𝐨𝐱𝐞𝐬】The AIRTHRYL personal air conditioner cooling fan features a high-capacity 1200ml water tank that delivers up to 10 hours of continuous cooling. ✅ Top-fill design & clear water level window – easy to refill and monitor. ✅ 2 upgraded ice boxes for faster, stronger cooling.
❄️【𝐑𝐞𝐦𝐨𝐭𝐞 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 & 𝐓𝐨𝐩 𝐏𝐚𝐧𝐞𝐥】AIRTHRYL portable air conditioners has a control panel and a remote control. When you are relaxing on the sofa, just press the button on the remote control to easily operate this ac fans and ice fan that blow cold air.

SaleRank No. #6

Mini Air Conditioner Battery Powered 6000mAh,Rechargeable Small Air Conditioner for Room,Personal Air Cooler with Mist,Timer & Light,Portable AC Unit Cooling Fan for Camping,Tent,Car Desktop,Bedroom

❄️【HIGH-EFFICIENCY COOLING FAN】 Stay cool with the Azoiito Battery Powered Air Conditioner Fan! Equipped with a powerful high-torque motor, 5-blade fan, and dual ultrasonic nebulizers, it quickly transforms hot air into a refreshing breeze (65-75°F). Perfect for bedrooms, dorms, offices, tents, garages, cars and outdoor camping, a nice bedroom personal air conditioner choice too
❄️【RECHARGEABLE WITH BUILT-IN 6000MAH BATTERY】This portable air cooler comes with a built-in 6000mAh battery, offering up to 6 hours of continuous cooling (on low speed, without spray). Recharge via USB-C or power bank. Cordless & compact—ideal for camping, picnics, travel, or outdoor parties, a real portable AC unit
❄️【3 SPRAY MODES & 3 STRONG MIST OUTLET FOR CUSTOM COMFORT】Enjoy personalized cooling with 3 mist modes: no mist for natural wind, low mist for a cool breeze, and high mist for a cold wind. Add ice cubes to the 1000ml water tank for enhanced cooling. Perfect for relieving summer heat and staying comfortable all day long.
❄️【ADJUSTABLE WIND SPEEDS WITH QUIET PERFORMANCE】 3 wind speeds: LOW, MEDIUM, HIGH. Powerful airflow yet ultra-quiet (<50DB) for study, work, or sleep. Enjoy cool comfort at home, in dorms, beedroom, apartment, on the road or for your pet
❄️【PORTABLE & COMPACT DESIGN】Designed with a soft artificial leather lifting rope, this mini air cooler is lightweight and easy to carry. Built-in Battery and Power it via USB (from a power bank or adapter), perfect for outdoor activities like camping, car trips, or picnics.

SaleRank No. #7

Portable Air Conditioners Fan,AI Portable AC Unit With 1500ML Water Tank,4-IN-1 Evaporative Air Cooler with Remote Control 7 Color Light Personal Mini Air Conditioner Portable for Room Office Car

Extended 14-Hour Runtime: Equipped with a high-capacity sealed reservoir, the JYewroom Portable Air Cooler delivers up to 14 hours of continuous cooling in energy-saving mode (low mist setting) when fully filled. The unit’s programmable timer further enhances convenience, allowing you to customize operation for up to 14 hours—perfect for overnight comfort or daytime productivity. Enjoy focused work, relaxation, or uninterrupted sleep without the harsh, overcooled airflow typical of traditional AC units. (Note: A built-in low-water sensor automatically pauses mist output to safeguard the system and ensure safe, efficient operation.)
4-in-1 Versatile Cooling System: JYew compact, windowless portable air conditioners combines four essential functions: a powerful cooling unit, an energy-efficient evaporative cooler, a soothing cool-mist humidifier, and an ambient mood enhancer. Featuring customizable 7-color LED ambient lighting, it doubles as a stylish nightlight or modern bedside lamp. The integrated universal USB charging port supports seamless connectivity to power banks, laptops, wall adapters, car outlets, and other devices—ideal for home, office, or travel use.
Customizable Cooling Control: This portable AC unit features 3-speed fan settings (Low/Medium/High) and 120° adjustable louvers, allowing precise airflow customization to match your comfort needs. The dual-mode cooling system offers effortless operation: a single button press activates continuous misting for steady cooling, while a double press switches to an intermittent 5-second mist cycle—ideal for balancing humidity without over-saturation. (Note: Adapter sold separately; requires a USB adapter rated 5V/1.5A or higher for optimal performance.)
Silent, Smart Climate Control:Engineered with precision airflow technology, this compact portable AC delivers ultra-quiet performance (<25 dB), ensuring restful sleep or focused productivity. The included long-range remote (16.4 ft/5m) lets you adjust cooling modes, fan speeds, timers, and ambient lighting instantly—no need to leave your bed or couch. A dedicated night mode optimizes settings for minimal disturbance, while the ergonomic design prioritizes effortless operation day or night.
All-Environment Cooling Power:Engineered for indoor-outdoor versatility, this portable air cooler adapts seamlessly to any setting—home offices, bedrooms, patios, or campsites—delivering rapid, energy-efficient relief from sweltering heat. Its ultra-compact, lightweight build and dual power options (battery-operated or USB-powered*) ensure hassle-free setup anywhere, eliminating the need for bulky installations. Whether escaping summer heatwaves indoors or embracing outdoor adventures, enjoy 360° adjustable cooling that keeps you comfortable wherever life takes you.

SaleRank No. #8

Portable Air Conditioners Rechargeable, 5200mAh Mini Air Conditioner, Personal Air Cooler with 3 Speeds, Small Desk Air Cooling Fan for Bedroom, Office, Outdoor

【Fast and Efficient Cooling】Mini air cooler multifunction design takes you away from the hot summer, enjoy your cooling summer. Personal air conditioners have multi-directional air vents that are adjustable to point the air to the area you want
【5200mAh Rechargeable】Air cooler is rechargeable and portable in design, small in size, and easily carried anywhere. With 5200mAh Large capacity battery, it can be refrigerated continuously for 5-10 hours to keep you cooling
【Energy Saving】Small air conditioner doesn't contain harmful refrigerant, no freon, and no use of a compressor. Desk air cooler has low energy consumption to decrease your electricity bill and it’s completely fit for our low-carbon lifestyle
【Ultra Quiet & Removable Air Deflector】Air conditioner for bedroom with 3 wind speeds can work effectively at low noise levels. The Air Deflector can be disassembled and cleaned, which is very convenient
【Indoor and Outdoor Use】Just pour some ice water in the water tank, then use a USB cable to connect the adapter, power bank, and computer, and it will cool the hot air around you in a few seconds, making it ideal for usage in the room as well as on outdoor, travel, and camping

SaleRank No. #9

JYew Portable Air Conditioners,Misting Fan With 10000mAh Rechargeable Battery Operated Fan, Outside Camping with Hook USB for Bedroom Outdoor Tents Travel Summer

【10000mAh Rechargeable Battery Capacity】The JYew portable air conditioners no windows needed comes with a built-in 10000mAh rechargeable battery, capable of operating continuously for 8 to 36 hours, providing prolonged cooling comfort, ensuring prolonged cooling comfort even in remote outdoor settings where access to power sources may be limited.
【Potent yet Peaceful Breeze】Featuring tri-blades, JYew Outdoor Misting fan portable cooling fan delivers significantly stronger airflow while remaining remarkably quiet. With 3 adjustable speeds, it caters to various needs for different occasions. An ideal outdoor cooling fan to provide instant relief on sweltering days.
【2025 Upgraded Misting Version】JYew portable AC unit features a 400ml water reservoir with two adjustable spray settings: intermittent and continuous modes. Once the water tank is depleted, you can easily refill it through the top hole, ensuring all-day cooling and moisture.
【Adjustable Angle & Hook Design】The portable battery-operated fan offers rotation adjustment, enabling you to direct airflow from various directions. Equipped with built-in foldable hooks, our outdoor fan can be easily hung on tents, cars, branches, walls, or simply placed on a table at home or in the office.
【Durable & Ideal Gift】The 4-in-1 portable misting fan is crafted from robust and long-lasting ABS material, designed to withstand rigorous use and prevent damage from strong impacts, ensuring your confidence in its performance across different occasions. Moreover, it comes elegantly packaged, making it an ideal gift for your friends and family. 【Warm Tips】 If you don't use the atomization function, you need to cover the atomization hole with the silicone plug to avoid water leakage.

Rank No. #10

Upgraded Portable Air Conditioners- Evaporative Air Cooler,Portable AC with 3 Wind Speed & Mist, Mini Cooling Fan Personal Air Conditioner with 7 Night Light & 2-4H Timer for Bedroom Office Home-Black

❄️【2025 Upgraded High-efficiency Air Cooler】TLXLT portable ac air conditioner has a 4-in-1 design, helping you realize the dream of having a mini personal air cooler, humidifier, adjustable wind direction fan and LED night light at the same time, which can reduce the ambient temperature to 45-50°C °F, instantly provides you with strong, cool and refreshing air flow, you can add cold water and ice cubes to the water tank for better cooling effect.
❄️【Eco-Friendly Energy Saving & 3 Wind Speeds】Our portable cooling fan is upgraded with a powerful and quiet motor, and the small misting fan uses evaporative atomization technology to achieve low energy consumption. You can adjust 3 wind speeds (high, medium, low) and 2 adjustable sprays (low/high), the portable USB air ventilator can adjust the wind direction according to your preference (inside and downward 30°).
❄️【Large Water Tank & LED Night Light】The evaporative cooler comes with a 1200ml large-capacity sealed water tank (not exceeding the maximum water level), and the room portable air conditioner can work for up to 8 hours when filled with water (low cooling mist mode). The built-in LED atmosphere in seven colors has the function of a night light for sleep. Two auto-off modes: 2/4 hours. You can adjust the light to your intention to improve sleep quality.
❄️【Portable Fan & Easy to Use】 The ideal size of this USB mini mobile air conditioner is 12 x7 x 6 inches, only 2.2 pounds. USB design (1.5m Type-C cable).At the same time, personal cooling fans have an portable handle, easy to carry. Small air conditioners fan can be used with adapters, mobile power supply,computer, and automotive chargers. Very suitable for home, office, travel, outdoor activities,etc.Can easily carry anywhere!Note: Spray mode cannot be used without cotton swab installed.
❄️【Best Summer Gift】The cooling fan allows you to enjoy a full cool, clean air, let you enjoy a comfortable summer.USB cooling fan is the ideal gift for your friends in summer. In order to ensure that our customers have a perfect experience. Package includes: usb cable, charging head, 2*cotton swab，if you encounter any problems,we will solve the problem for you within 12 hours!

Last update on 2025-06-05 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best portable battery operated ac?

Do you get stressed out thinking about shopping for a great portable battery operated ac? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching portable battery operated ac, which is why we have assembled a comprehensive list of the greatest portable battery operated ac available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for portable battery operated ac that you consider buying. Your questions might include the following:

Is it worth buying an portable battery operated ac?
What benefits are there with buying an portable battery operated ac?
What factors deserve consideration when shopping for an effective portable battery operated ac?
Why is it crucial to invest in any portable battery operated ac, much less the best one?
Which portable battery operated ac are good in the current market?
Where can you find information like this about portable battery operated ac?

We’re convinced that you likely have far more questions than just these regarding portable battery operated ac, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for portable battery operated ac, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible portable battery operated ac. Make sure that you are only using trustworthy and credible websites and sources.

We provide an portable battery operated ac buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available portable battery operated ac currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of portable battery operated ac has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an portable battery operated ac?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your portable battery operated ac.
Customer Ratings: Number ratings grade portable battery operated ac objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their portable battery operated ac.
Product Quality: You don’t always get what you pay for with an portable battery operated ac, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an portable battery operated ac is should be an indication of how long it will work out for you.

We always remember that maintaining portable battery operated ac information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding portable battery operated ac is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: What is the best portable air conditioner?

A: – Best Overall Portable Air Conditioner: Whynter Dual Hose Portable Air Conditioner – Best Value Portable Air Conditioner: Honeywell Portable Indoor Evaporative Air Cooler – Best Portable Air Conditioner for Bedrooms: Black + Decker Portable Air Conditioner – Quietest Portable Air Conditioner: Frigidaire Portable Room Air Conditioner – Best Portable Air Conditioner with Heat: Whynter Dual Hose Portable Air Conditioner with Heater – Best Portable Air Conditioner for High Humidity: Whynter Portable Air Conditioner and Heater – Best Portable Air Conditioner and Air Purifier: Whynter Elite ARC-122DS Portable Air Conditioner – Best Portable Air Conditioner for Large Rooms: Whynter Elite ARC-122DS Portable Air Conditioner – Best Smart Portable Air Conditioner: LG Smart Wi-Fi Portable Air Conditioner

Q: What is a portable AC unit?

A: A portable air conditioner is an air conditioner that is mobile. Unlike window, through-the-wall, or central air conditioning units, portable units do not require permanent installation. Commonly, these units have caster wheels for easy portability, are relatively lightweight and are generally about 28″ to 34″ tall.

Q: What is the best air conditioning unit?

A: Igenix IG9704 Portable 4-in-1 Evaporative Air Cooler. … De’Longhi PACAN98 Air Conditioning Unit. … De’Longhi PACN82 ECO Air Conditioning Unit. … AEG ChillFlex Pro AXP26U338CW Air Conditioning Unit. … AEG ChillFlex Pro AXP26U558HW. … De’Longhi PAC EX100 Pinguino Silent Air Conditioner. … De’Longhi Pinguino PACCN92 Air Conditioning Unit. …

Q: Is there a portable air conditioner without an exhaust hose?

A: A portable air conditioner does not work without an exhaust vent; however, it is possible to minimize the hose length by installing vent similar to the one used for a dryer to exhaust the unit. Portable air conditioners work by moving heat from the room and must vent to cool.