Top 10 Best Air Conditioners Without Hose
of November 2024
1
Best Choice
TURBRO
TURBRO
TURBRO Greenland 14,000 BTU Portable Air Conditioner and Heater, Dehumidifier and Fan, 4-in-1 Floor AC Unit for Rooms up to 600 Sq Ft, UV-C Light, Sleep Mode, Timer, Remote Included (10,000 BTU SACC)
10
Exceptional
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2
Best Value
TURBRO
TURBRO
TURBRO Portable Air Conditioner Exhaust Hose, 5.9 Inch Diameter Counter Clockwise, 78 Inch Length
9.9
Exceptional
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3
YOUHO
YOUHO
Portable Air Conditioner Hose - AC Hose YOUHO 5" Diameter - 80" Long. Universal Flexible Counter-Clockwise Room Airconditioner AC Vent Replacement Tube
9.8
Exceptional
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4
SereneLife
SereneLife
SereneLife Compact Freestanding Portable Air Conditioner - 10,000 BTU Indoor Free Standing AC Unit w/ Dehumidifier & Fan Modes For Home, Office, School & Business Rooms Up To 300 Sq. -SLPAC105W
9.7
Exceptional
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5
Whynter
Whynter
Whynter ARC-14S 14,000 BTU Dual Hose Portable Air Conditioner with Dehumidifier and Fan for Rooms Up to 500 Square Feet, Includes Activated Carbon Filter & Storage Bag, Platinum/Black, AC Unit Only
9.6
Exceptional
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6
Midea
Midea
Midea Duo 12,000 BTU (10,000 BTU SACC) HE Inverter Ultra Quiet Portable Air Conditioner, Cools up to 450 Sq. Ft., Works with Alexa/Google Assistant, Includes Remote Control & Window Kit
9.5
Excellent
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7
Della
Della
DELLA 14000 BTU WiFi Enabled Portable Air Conditioner & Heater, Freestanding Electric Auto Swing Fan Dehumidifier AC Unit w/Remote Control Window Kit For Rooms Up To 800 Sq.ft
9.4
Excellent
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8
Dreo
Dreo
Dreo TwinCool 12000 BTU Smart Inverter Portable Air Conditioner with Dual Hose, 42dB Quiet,Powerful Cooling, Up to 450 Sq Ft, Remote Control, Dehumidify, 24H Timer, Window Mount Kit, White
9.3
Excellent
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9
R.W.FLAME
R.W.FLAME
R.W.FLAME 10,000BTU Portable Air Conditioner for Room Up to 450 Sq.Ft,with Dehumidifier & Fan,Standing Air Conditioner for Room,Portable AC unit with Remote Control & Window Kit,LED Display
9.2
Excellent
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10
De'Longhi
De'Longhi
DeLonghi Portable Air Conditioner 14,000 BTU,cool extra large rooms up to 700 sqft,remote,energy saving mode,extremely quiet,dehumidifier,fan,programmable,window venting kit,AC Unit for room,EX390LVYN
9.1
Excellent
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11
BLACK+DECKER
BLACK+DECKER
BLACK+DECKER 8,000 BTU Portable Air Conditioner up to 350 Sq. with Remote Control, White
9.0
Excellent
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12
Midea
Midea
Midea 8,000 BTU U-Shaped Smart Inverter Window Air ConditionerCools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
8.9
Very Good
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13
CENSTECH
CENSTECH
CENSTECH Evaporative Air Cooler, Swamp Cooler Air Conditioner w/ 12H Timer for Auto-off, 6 Upgraded Ice Packs, 3-Speed Windowless Air Conditioner, Smart Remote, Dual Tank Portable Air Cooler for Room
8.8
Very Good
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14
Laluztop
Laluztop
Portable Air Conditioners - 4-IN-1 Air Conditioner Portable for Room, Evaporative Air Cooler w/ 4 Modes, 3 Speeds, 1.32 Gallon Water Tank, 90Oscillation,7H Timer, Portable Ac for Room Home Office
8.7
Very Good
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About Air Conditioners Without Hose
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TURBRO Greenland 14,000 BTU Portable Air Conditioner and Heater, Dehumidifier and Fan, 4-in-1 Floor AC Unit for Rooms up to 600 Sq Ft, UV-C Light, Sleep Mode, Timer, Remote Included (10,000 BTU SACC)
Keep Fresh and Cool TURBRO 14,000 BTU 10,000 BTU 2017 New DOE air conditioner provides powerful cooling for up to 600 square feet of large living rooms, bedrooms, offices, etc. A bonus UV-C light function eliminates harmful pollutants from the air keeping indoor air clean and fresh.. Not Just an AC This 4-in-1 unit delivers powerful relief from the summer heat and brings cozy warmth 13,300 BTU in winter. It also removes moisture and humidity up to 81 pintsday in damp conditions or creates a draft of fresh air using the 3-speed auto swing fan mode.. A Real Penny-Pincher The auto function will adjust the operating mode to maintain a constant room temperature of 68-73 degrees without wasting energy. When it gets too cold, the heater will start. If it gets too hot, the cooling mode will start. Take even more control by setting the unit to shut off automatically with the 24-hour timer.. Easy-Peasy Installation After you open the box, installation can usually be completed in less than 15 minutes. The full window kit allows you to run the heat exhaust hose to any vertical or horizontal sliding window.. Simple Controls You dont have to be a rocket scientist to use this AC. The control panel is easy to understand, and the remote control with a backlit LCD screen makes it clear to operate in the middle of the night.. Note After opening the box, please allow the unit to sit upright for at least 3-4 hours before powering on..
TURBRO Portable Air Conditioner Exhaust Hose, 5.9 Inch Diameter Counter Clockwise, 78 Inch Length
Portable Air Conditioner Hose - AC Hose YOUHO 5" Diameter - 80" Long. Universal Flexible Counter-Clockwise Room Airconditioner AC Vent Replacement Tube
Our AC exhaust vent has an anti-clockwise thread direction so make sure to check this is correct for your AC before purchasing. The diameter of our AC hose is 5.0 inches which means it can fit most portable air conditioners on the market including LG, GE, Delonghi,Frigidaire, Whynter, SPT, Honeywell, Haier, Emerson ,Newair and many more.. Kaysection Air Conditioning Hose is made of strong, flexible polypropylene which makes it long lasting - withstanding any wear and tear without leaking. Keep your portable LG air conditioner in excelleng condition with our AC hose.. Extend the AC hose to meet up with the existing vent, line up the front of the hose and put on the unit specific coupler sold separately, usually comes with AC unit. Turn ANTI-CLOCKWISE until it snaps into place - its that simple.. Keep the AC vent at its shortest length, 15 inches, or fully extend it to 80 inches. At home or in the office, our flexible, extendable air conditioning hose fits into any space.. Weve spent years developing our AC hoses so they are the best quality possible. We truly believe that these are the best AC hoses on the market and we stand by that - if our AC hose has left you feeling hot and bothered, well FULLY REFUND YOUR PURCHASE. So, click Add to Cart now and buy with confidence..
SereneLife Compact Freestanding Portable Air Conditioner - 10,000 BTU Indoor Free Standing AC Unit w/ Dehumidifier & Fan Modes For Home, Office, School & Business Rooms Up To 300 Sq. -SLPAC105W
10, 000 BTU COOLING POWER With 920W rated power and 10, 000 BTU ASHRAE 6,000 BTU SACC cooling power, the cold air can cover a room up to 300 sq ft Air flow is rated at 360 m3hr, moisture removaldehumidifier at 1. 2 litershr w an operating noise level of only 57 dBa. 3 OPERATING MODES The ac unit portable room air conditioner 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 dont only get the cooling effect of the portable AC but also helps reduce humidity levels, a huge financial and space saving. REMOTE CONTROL This stand up air conditioner portable AC unit features push-button control panel w led display comes w a remote control so you can easily adjust the mode, time, temperature fan speed select the temperature unit C F. FREE STANDING DESIGN The portable air conditioning unit features a free-standing design w modern style, sleek body housing can be used in any bedroom, living room or garage at home or office. Also has rolling wheels includes window mount kit.
Whynter ARC-14S 14,000 BTU Dual Hose Portable Air Conditioner with Dehumidifier and Fan for Rooms Up to 500 Square Feet, Includes Activated Carbon Filter & Storage Bag, Platinum/Black, AC Unit Only
Portable AC Unit Our portable room air conditioner keeps your room cool while aligning with better environmental standards and helping reduce your energy consumption. Multipurpose Portable AC air conditioner with dehumidifier features a cooling range of 500 square feet and 3 operational modes air conditioner, fan, or dehumidifier. Auto-Drain Technology Our dual-hose portable ac units for rooms use and recycle moisture collected during the cooling process to produce cool air and feature a dehumidifying capacity of 71 pints per day. Powerful, Efficient, and Quiet This Energy Star Rated 14,000 BTU portable air conditioner features CFC-free Green R-32 refrigerant and lead-free RoHS-compliant components Noise is kept to under 56 dBA. Includes Portable air conditioner comes with protective cover, window kit, remote control, activated carbon air filter and washable pre-filter, and user manual Exhaust hose extends up to 60 inches Window kit measures 6.5 inches W by 20-46 inches L.
Midea Duo 12,000 BTU (10,000 BTU SACC) HE Inverter Ultra Quiet Portable Air Conditioner, Cools up to 450 Sq. Ft., Works with Alexa/Google Assistant, Includes Remote Control & Window Kit
INNOVATIVE DUO HOSE DESIGN - Midea's industry-first hose-in-hose design enables the unit to intake and exhaust air outdoors. The hose-in-hose portable air conditioner can form balanced air circulation indoors, effectively preventing hot air from seeping into the room through gaps around doors and windows.Controller typeRemote Control,Voice Control,Android,iOS.Air Flow efficiency375.88 CFM. INVERTER TECHNOLOGY - Engineered with the variable-speed inverter technology, Midea Duo Inverter portable air conditioner cools more with considerably less electricity than traditional portable units. It saves more than 40 energy compared to U.S. federal standard.. MORE THAN 2X FASTER AND STRONGER COOLING - Empowerd by the Duo hose design and an optimized air duct system, Midea Duo can lock and maximize cooling indoors. Now you can enjoy a 2X faster and stronger whole-room cooling experience like never before. 42dB ULTRA-QUIET OPERATION - The sound level of Midea Duo is as low as 42dB when cooling. That is almost as quiet as a library.. SMART WI-FI, WORKS WITH ALEXAGOOGLE ASSISTANT - Wi-Fi module enables you to control from anywhere with the Midea Air smartphone app or by voice assistant with the Google Assistant and Alexa..
DELLA 14000 BTU WiFi Enabled Portable Air Conditioner & Heater, Freestanding Electric Auto Swing Fan Dehumidifier AC Unit w/Remote Control Window Kit For Rooms Up To 800 Sq.ft
COOL YOUR ROOM 14,000 BTU ASHRAE 10,000 BTU SACC This convenient, portable air conditioning unit provides cool air, heating and dehumidifying for spaces up to 800 square feet. This freestanding fan is ideal for any room with poor ventilation. The heater can reach temperatures of up to 90 degrees Fahrenheit.. WORKS IN ANY SPACE Ideal for indoor use, this fan will cool down your bedroom, living room, apartment, condo or office. The bottom is equipped with wheels and the whole unit is portable. It's suitable for bedrooms, living rooms, dorms, garage, apartments, cabins, campers or offices.. APP CONTROL With the Della app, you can adjust the temperature setting from anywhere within range. While you're relaxing at home, you can adjust the temperature without getting up off the couch.. SMALL, BUT POWERFUL Measuring at 17.91L x 14.72W x 29.8H, this unit has a small stature but a large cooling capacity. A 24-hour timer allows you to pre-set when the fan turns on or off.. WINDOW KIT INCLUDED Vent the air conditioner with the included window kit. 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..
Dreo TwinCool 12000 BTU Smart Inverter Portable Air Conditioner with Dual Hose, 42dB Quiet,Powerful Cooling, Up to 450 Sq Ft, Remote Control, Dehumidify, 24H Timer, Window Mount Kit, White
Dual Hose, Double Effect The hose-in-hose innovation promotes efficient air circulation by keeping the cold in and pushing the heat out. 12,000 BTU cooling capacity blows massive cold that reaches as far as 28 feet. Ideal for your garage, bedroom, living room, workplace or larger rooms up to 450 sq ft.. Customize Your Comfort With 5 powerful modes CoolFanHumidifyAutoSleep, 60-86F temperature control, memory, I Sense and more functions, you can easily maximize your comfort with the touch of a button.. Hear Less, Feel More Enjoy the cool comfort quietly as you do in a library. Dreo's ingenious airflow and inverter technology minimize the noise down to 42 dB, ensuring your peace of mind day and night.. Over 40 Energy Savings Unlike conventional PACs, this inverter portable air conditioner operates at variable speeds, along with the hose-in-hose design, to save over 40 on energy costs compared to fixed-frequency single-hose air conditioners.. So Easy to Use All-in-one touch panel offers a range of useful functions like swing and 24h timer so you can get the cool wherever and whenever you need it. You can also operate this portable air conditioner from 26 feet away with the handy remote control.. Hassle-Free Installation Install in your bedroom or any other room with a hung window or slide window with the included kit. 47-inch pre-assembled long flexible hose for easy maneuver. Window requirements Slide window width 26.8''-49'', sill level height 4''-47''. Hung window length 26.8''-49'', sill level height 4''-47''. Wattage 115.0. Voltage 115.0 volts_of_direct_current. Capacity 6.14 cubic_centimeters. Installation type Packaged Noise level 43.0 decibels.
R.W.FLAME 10,000BTU Portable Air Conditioner for Room Up to 450 Sq.Ft,with Dehumidifier & Fan,Standing Air Conditioner for Room,Portable AC unit with Remote Control & Window Kit,LED Display
3 IN 1 MULTIFUNCTIONALThis 10000BTUASHRAE portable AC contains three different functions and two fan speed settings.Cool Cool the room to the set temperatureDehum Reduce the humidity in the room 24L24HFan Circulate the air in the room without cooling.A variety of functions to meet your various needs in the all season. 24H TIMER SLEEP MODEThe Portable Air Conditioner is built-in timer from 1 to 24hours, the fans can be turned off at the time you set it when you fall asleep or forget to turn it offYou can also turn on the air conditioner in advance through the timer function, and feel the cool air immediately when you get home.. INTELLIGENT CONTROL PANEL REMOTE CONTROLUser-friendly function settings, all functions can be completed through the top operation panel or remote control, to meet the needs of various scenarios. EASY TO INSTALL PORTABLEIt features rolling wheels for easy portabilitydo not require any permanent installation, allowing you to move to the space where you need.It can be used in many places where the installation of outdoor units of air conditioners is limited, such as temporary houses and garages.. EASY TO CLEAN ETL CERTUFYThe rear filter can be easily removed for easy cleaning, ensuring that every breath is as fresh as ever.In addition, this air conditioner is ETL certified.Using the refrigerant with the highest safety level, green and environmental protection. COMPLETE ACCESSORIES Includes exhaust hose, window kits,round connector and remote controlwith battery no extra tools are needed for assembly.. AUTO WATER EVAPORATIONStress-free auto evaporation in cooling modeThe bottom is equipped with a water storage tray, so there is no need to pour water frequently. Under normal use, it can be cleaned once a month.
DeLonghi Portable Air Conditioner 14,000 BTU,cool extra large rooms up to 700 sqft,remote,energy saving mode,extremely quiet,dehumidifier,fan,programmable,window venting kit,AC Unit for room,EX390LVYN
3-in-1 Unit Delivers a Precise, Targeted Cool. COOLS EXTRA LARGE ROOMS. Supplies 14000 ASHRAE8600 SACC BTU cooing power where it is needed most.. Targeted Cool Delivered Right to You. Cool Surround Technology uses Bluetooth technology to monitor temperature and humidity around the remote control and delivers targeted cool right to you.. Multifunctional for Maximum Comfort. 3-in-1 unit serves as an air conditioner, dehumidifier, or fan.. .The Quietest Cool. With all of this power, you might expect the noise to matchbut the PAC EX390LVYN is equipped with Arctic Whisper Extreme Technology quiet mode, meaning your comfort doesnt have to cause a clamor. Operating at near-whisper levels, this portable AC unit cools and dehumidifies your room without disruption.. Balance Temperature and Humidity. Industry exclusive ECO Real Feel technology provides an unmatched level of comfort, securing the ideal balance between temperature and humidity while saving up to 30 in energy consumption. With ECO Real Feel, the EX390LVYN monitors your surrounding climate to optimize comfort and efficiency. It cools and dries the air, turning any room into your ideal comfort zone.. Cleaner Air. The washable filter screens impurities from entering the unit and is simple and easy to clean under the faucet. Portable Comfort with Easy Setup. Cast handles and wheels allow you to move the unit from room to room with ease while setup is simple and takes only minutes.. Even, Cool Airflow with Programmable Timer. Motorized air direction control for custom comfort. Set the timer to turn on or off to match your scheduling needs and save energy..
BLACK+DECKER 8,000 BTU Portable Air Conditioner up to 350 Sq. with Remote Control, White
3-in-1 Our 4,100 BTU DOE 8000 BTU ASHRAE 128 air conditioner also functions as a dehumidifier fan. This portable air conditioner 45.8 lbs. has a convenient remote control top mounted control panel with LED display.. Impressive Features Set the temperature just right with this ac portable air conditioner. Our ac unit portable also has a slide-out washable filter, auto water evaporation, 24-hour timer.. Easy Mobility Thanks to casters on the bottom and side handles on both sides of the small air conditioner, this air cooler can be moved from room to room without any hassle.. Installation Kit When it comes to fans that blow cold air, this indoor ac unit includes an easy-to-install window kit. A large, vented airflow outlet ushers in cool air..
Midea 8,000 BTU U-Shaped Smart Inverter Window Air ConditionerCools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
ULTRA QUIET - The Midea U Smart Inverter AC unit is 9 times quieter than traditional units. The U-shape design uses your window to blocks noise outside and the high efficiency Inverter system warrants ultra low noise and vibration. This design allows for extremely quiet operation as low as 42 dBA - almost as quiet as a library so you can get a restful nights sleep or binge your favorite shows undisturbed.Controller typeVoice Control,android,ios.Air Flow efficiency202.94 CFM. MORE THAN 35 ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U achieves over 35 energy savings compared to other traditional units, and it's the first window AC to obtain the ENERGY STAR Most Efficient 2022 Certification. You may also get exclusive benefits from your local energy distributor.. FLEXIBLE WINDOW OPENING - Midea U-shaped design allows your window to open, bringing fresh air into your home anytime and allowing you to maintain more of your view even when the unit is installed. The Anti-Theft Mechanism locks the closed window for added security. SMART CONTROL - The Midea U Smart Inverter Air Conditioner is Wi-Fi enabled and can be controlled from anywhere through the cloud using the MideaAir app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant.. ROBUST INSTALLATION - Install the included quick-snap bracket, set the unit on the bracket, and secure the sidearms. After that, you are all done and ready to enjoy. Available for single-hung or double-hung windows with size 22-36, minimal height at 13.75..
CENSTECH Evaporative Air Cooler, Swamp Cooler Air Conditioner w/ 12H Timer for Auto-off, 6 Upgraded Ice Packs, 3-Speed Windowless Air Conditioner, Smart Remote, Dual Tank Portable Air Cooler for Room
-- CENSTECH Swamp Cooler functions as an Air Cooler, Humidifier, and a Fan. Unlike conventional ACs, the evaporative air cooler provides optimal cooling and humidity, enhancing your living and work spaces without excessive drying, helping to keep skin hydrated. Tailored for areas like the Southwestern US, California, and New Mexico, where summers can be uncomfortably dry.. With 3 fan speedslow-12fts, medium-19fts, and high-26fts delivering a cooling breeze at up to 26 fts. Choose from 3 modesNormalSleepCooling Normal for daily use, Sleep for restful nights, and Cooling for maximum cooling effect. Beat the heat effortlessly and enjoy a cool, comfortable living space with CENSTECH portable air conditioners. , No hoses, no assembly needed. CENSTECH ductless air conditioner can be used after being unpackaged. Unlike traditional wall-mounted ACs, our windowless air conditioner operates at a mere 65W, slashing installation and maintenance costs while cutting electricity usage by up to 60. Plus, the easy-to-clean removable cooling pad simplifies upkeep.. CENSTECH's upgraded portable air cooler utilize the 2024's latest cooling technology high-performance motor, innovative air duct design, and high-density cooling pad. Quickly reduces ambient temperatures by 41-49F as water evaporates to absorb heat, achieving rapid cooling. Tip Enhance the cooling effect by adding frozen ice packs to the water tank. Tested at 95F in the lab, the cooling effect varies based on indoor humidity. Enjoy the cooling breeze from any corner of the room with CENSTECH evaporative cooler, featuring dual control via remote 26ft range and touch panel. You can easily adjust the personal air conditioner from any room without standing. Its sleek, intuitive design is family-friendly for everyone. It's not just a cooler it's a step towards smart living.. - - With a 12-hour smart timer, CENSTECH portable swamp cooler is automatically turned off to save energy and reduce bills. Operating at a mere 40dB, the ultra-quiet air conditioner portable for room ensures a peaceful environment that won't disrupt work, study, or sleep. The gentle illumination from the top panel serves as a soothing night light, promoting restful sleep and creating a serene space for you.. . .CENSTECH swamp cooler air conditioner can auto-swing horizontally by 70 and manually adjust vertically by 25, ensuring even cooling the entire room. With a strong airflow of 1440 cubic ftmin, our air cooler for bedroom can efficiently cover an area of up to 300 sq. ft. The upgraded cooling pad provides ample cooling and humidifying airflow for dry, hot rooms.. - With dual water tanks, refilling from the top or bottom is a breeze. CENSTECH personal air cooler features a 1-Gallo
Portable Air Conditioners - 4-IN-1 Air Conditioner Portable for Room, Evaporative Air Cooler w/ 4 Modes, 3 Speeds, 1.32 Gallon Water Tank, 90Oscillation,7H Timer, Portable Ac for Room Home Office
4 In 1 Humidifying Cooling Fan Negative IonsThis portable air conditioners introduce innovative cooling technology with quiet high speed spinning fan along with plant fiber curtain to release ice water into the fresh cold and moist wind, cool and humidify the surrounding in the most comfortable and fastest way. No more hot and dry this summer. It can be used as a tower fan without water running.. Sleep Mode Timer Remote ControlThis portable air conditioner is designed with 4 modes cool, normal, natural and sleep and 3 wind speeds highmediumlow. Sleep soundly throughout the night without waking up in a sweaty mess. Set the 1-7hrs timer function, no worry about being cold at night. And the remote control offers you total peace and enjoyment without getting up from bed.. Ultra-quiet Energy SavingThanks to the ultra-quiet spinning fan engine, the noise of this air conditioner portable for room is lower than 50 dB, which is considered whisper-quiet. With 65W rated power, no installation is needed it reduces your bills by 80, no damaging refrigerants, no vent is needed, let this portable AC cools you and adds moisture to air-reducing dry air symptoms such as itchy eyes, throat, or skin in dry climates.. Top Refilling 5L Big Capacity Bottom Water Tank 4 Ice PacksTired of bending over and adding water frequently Our evaporative air cooler is designed with easy top refilling which is friendly to the elder and disabled people, besides, the bottom 1.32 Gallon big capacity water tank allows this air conditioner portable to run for up to 21 hours. The air cooler comes with extra 4 Ice packs which could deliver continuous cooling repeatably.. 90 Oscillation 360 Universal WheelsDo you need a portable ac air conditioner that is easy to remove in rooms, well, Laluztop portable air conditioners are a perfect choice. Comes with 4 universal wheels which allow you easily take it to any room, no extra installation is needed. The inner blades are designed with 90 swing automatically to cool down your room evenly, moreover, you can manually adjust the blowing direction vertically at 120 freely.. 100 SATISFYING CUSTOMER SERVICE We back you up with our 724 online customer service, with 60 days money back and 12 months replacement, if there is any problem with portable air conditioners, just feel free to contact us for a solution. Love it or pay nothing.. Warm Note Please make sure the blades are manually opened before you turn on the fan. tear off the protective film on two sides and manually open the blades by pulling one of them up. Make sure the water is refilled till it's above the MIN markthe water line at the bottom of the machine. It will start to pump water and go down through the top tank, then it realizes a cooling-off effect when you choose COOL mode. Please notice that This machine DOESN'T MIST under COOL mode..