4 Best Ventless Air Conditioner – (Reviews & Guide of 2020)

Last Updated on by

Ventless air conditioners can go where traditional air conditioners can not, making them a popular choice for air temperature control in versatile situations. In this ventless air conditioners buying guide an overview is given of some of the best ventless air conditioners currently on the market.

Only the very best models of air conditioners that are made by reputable manufacturers are included in our buying guides. Our reviews give a 100% unbiased and comprehensive look at the pros and cons of the bestselling ventless air conditioners on the market. Each of the air conditioning units included in this buying guide have been tested and certified for safe and long-lasting performance.

In addition to detailed reviews of some of the best ventless air conditioners, in this handy ventless air conditioners buying guide you will find answers to frequently asked questions such as: What are the pros and cons of a ventless air conditioner? What kind of maintenance does a ventless air conditioner require? How much does a ventless air conditioner cost?

Finding the right ventless air conditioner for home doesn’t have to be a hassle. After reviewing this ventless air conditioners buying guide you will have a better idea of what features to look for when shopping for a ventless air conditioner, and what you can expect in terms of cost and maintenance for a ventless air conditioner.

Ventless Air Conditioners Review

BLACK+DECKER BPACT08WT Portable Air Conditioner
  • 4 Customer Rating
  • BTU: 8,000
  • Coverage: 100 - 150 square feet
  • Dimensions: 16.5 x 11.5 x 26 in
  • Color: White
  • Weight: 52.9 pounds
  • Warranty: Manufacturers

Honeywell MO08CESWK Compact Portable Air Conditioner
  • 4 Customer Rating
  • Honeywell MO08CESWK
  • BTU: 8000/ 10000
  • Coverage: 250 to 450 Sq.Ft.
  • Dimensions: 13.5 x 14.6 x 27.7 in
  • Color: White
  • Weight: 43 pounds
  • Warranty: Manufacturers

Whynter ARC-14S 14,000 BTU Dual Hose Portable Air Conditioner
  • 4 Customer Rating
  • Whynter ARC-14S
  • BTU: 14,000
  • Coverage: 500 sq ft
  • Dimensions: 16 x 19 x 35.5 in
  • Color: Platinum And Black
  • Weight: 80 pounds
  • Warranty: One year warranty

Honeywell 300-412CFM Portable Evaporative Cooler, Fan & Humidifier
  • 3.5 Customer Rating
  • Honeywell 300-412CFM
  • BTU: N/A
  • Coverage: N/A
  • Dimensions: 15.7 x 13.5 x 31.5 in
  • Color: Silver/Grey
  • Weight: 18.5 pounds
  • Warranty: Three year warranty

BLACK+DECKER BPACT08WT Portable Air Conditioner

BLACK+DECKER BPACT08WT Portable Air ConditionerThis ventless portable air conditioner by the respected brand Black + Decker is a high-quality fan at an affordable price that has several great features. It provides adequate cooling power for a room of up to 100-150 sq ft. It’s a great choice for those looking for a ventless air conditioner for dorms, rooms, and garages. It works well as single-zone unit and provides powerful cooling with almost silent operation. It is operated via a convenient remote control which is included with your purchase.

This ventless air conditioner is made for installation with double-hung or sliding windows only, and can not be properly installed in crank windows. The installation process is simple and you can easily move the unit from room to room because it comes with handles for lifting as well as built-in casters. If you don’t want to vent it through a window, you could also vent the air conditioner into a room you don’t mind getting warm such as a laundry room. You can make your window larger with a saw to accommodate the unit, but there is no way to make the unit wider to fit a window that is too large.

This air conditioner for small rooms provides cooling and dehumidifying to the space, helping you live and breath more comfortably. It is best suited for a small room such as a bedroom or small garage. It provides powerful ventilation and dehumidifying and is very quiet even at its highest setting.

Black + Decker is a reputable manufacturer with years of experience creating air conditioners and other home appliances. Each air conditioner is engineered for exceptional performance and safety. They never cut corners when it comes to quality, so you can depend on Black + Decker products to be extremely long-lasting.

It is easy to control via an LED panel on the unit, as well as a remote control that allows you to remotely turn the unit off and on as well as adjust the temperature. The convenience of the remote control means that you don’t have to leave your bed to adjust the air conditioner in the middle of the night. It also will not wake you since it has such quiet operation while you sleep.


  • Remote control included.
  • LED digital temperature display.
  • Window installation.
  • Cools and dehumidifies.
  • Slide out filter is easy to clean.
  • Filter doesn’t require replacement.
  • Made for 10×12 rooms.
  • Wheels and handles included for easy moving.
  • Operates best in room temperatures between 64 and 95 degrees.
  • Required components for installation are included.
  • Environmentally friendly.
  • One-year warranty for parts and labor.
  • Five-year warranty on compressor only.

Honeywell MO08CESWK Compact Portable Air Conditioner

Honeywell MO08CESWK Compact Portable Air ConditionerThe second ventless portable air conditioner in our guide, which is made by Honeywell, is made for an even larger room with a maximum room size of 350 sq. ft. compared to the previous Black + Decker model which could only cool up to 150 sq. ft. effectively. This air conditioning unit has a sleek black and white shiny exterior and comes with built-in wheels and handles for easy lifting from room to room. This model is available for 250 sq. ft. rooms and for 350 sq. ft. rooms.

It has a small compact size and yet it can powerfully cool, ventilate, and dehumidify a moderate to large room. The installation process is fast and hassle-free. For the best results and to prevent voiding your factory warranty, consult with a contractor or installer, but the kit does come with everything you need to install this product yourself.

The air conditioner has an LED display panel from which you can easily control the temperature and flow. It also has a timer setting that can help you to conserve energy and save money. It also comes with a remote control with digital display that allows you to control the airflow remotely from anywhere in your room. The convenience of the remote control means that you won’t have to get up in the middle of the night to turn the air off or on.

This model has thermal overload protection which is an additional safety feature. In addition to this, this ventless portable air conditioner has a dual filtration system that helps your system keep working efficiently for longer. The model is very compact and one of the lightest models available of its size, and it also comes with handles and wheels which make it easy to move.


  • Quiet operation.
  • Compact size.
  • Easy to install.
  • Wheels and handles built-in.
  • Very portable.
  • Thermal overload protection.
  • Dual filtration system.
  • Self-evaporation system.
  • Continuous drain can be set up.
  • Remote control included.
  • Convenient timer setting.
  • Comes with hose and window venting necessities.

Whynter ARC-14S 14,000 BTU Dual Hose Portable Air Conditioner

Whynter ARC-14S 14,000 BTU Dual Hose Portable Air ConditionerThis incredible award-winning portable air conditioner is the best rated ductless air conditioner for a space of this size. It provides fan, air conditioning, and dehumidification to rooms of up to 500 sq. ft. making this one of the best air conditioners for large rooms and spaces. According to consumer reports, it has the best reviews for 2019 and one Best Housekeeping’s “Best Overall” award for portable air conditioners.

Unlike other portable ductless air conditioners which only come in white and beige, this air conditioner has a sleek black body with white stripes and an LED control panel. The look of the air conditioner is luxurious and beautiful so it will not be an eyesore in your home. The thermostat can be set between 61 and 89 degrees and uses eco-friendly refrigerant to efficiently cool the air and pump it directly into the room.

It has a patented auto-drain system which makes it easier than ever to clean and maintain your air conditioner. The auto-drain system prevents condensation and humidity which could cause the unit to rust or corrode over time. It also means that you will need to clean the filter less often. The kit comes with everything you need to get started with installation such as the appropriate hoses and window venting.

This air conditioner not only cools the air, but is a very powerful humidifier–removing 101 pints of water per day. The fan has three speeds so you have control of not only the temperature but also the flow of air. At high speed, the airflow has a rate of 222 CFM, or cubic feet per minute. This means that for the full 500 sq ft of room, it takes only about 120 seconds to circulate the air completely. This is the best portable air conditioner for a large room or space.


  • Digital control panel.
  • Remote control included.
  • Timer setting.
  • Three fan speeds.
  • For rooms up to 500 ft.
  • Award winning operation.
  • Self-draining function.
  • Comes with everything you need for installation.
  • Full temperature range.
  • Very portable.
  • Eco-friendly.
  • Uses CFC free GREEN R-410A refrigerant.
  • Hassle-free installation.
  • One year warranty on unit.
  • Three year warranty on compressor.

Honeywell 300-412CFM Portable Evaporative Cooler, Fan & Humidifier

Honeywell 300-412CFM Portable Evaporative Cooler, Fan & HumidifierThis is the smallest of the portable air coolers included in this buying guide, and is the best for small spaces. It works best in dry and hot temperatures and may be best suited for those living in the midwest, southwest, or similar environments. Honeywell has 10+ years in manufacturing air conditioners and coolers, and has a reputation for creating incredible products and this one is no exception. It is certified safe and long-lasting.

The air cooler system uses moisture to create the cooling effect. Fill the humidifier with water or ice to cool the air. It has an easy to use filter and detachable water tank for hassle-free operation and maintenance. This is not a traditional air conditioner or fan, but a combination of both. It’s a cost effective solution to offering a little extra cooling power to a space. A full tank of water in the humidifier will last you 7 – 8 hours and it will warn you when the water starts to get low. It is very small so it is easy to move around, and also has wheels on it so you can roll it across the floor.

Unlike the other models of air conditioners on this list, this super compact and portable air cooler doesn’t require a compressor. It doesn’t use refrigerant the way other ventless air conditioners do, and instead uses evaporated cold water to add additional cooling to the room. It doesn’t require any of the installation that other ventless air conditioners do. It only targets a specific area in the room, although it may slightly cool the entire room over all.

This cooling system is more powerful than a fan as it uses evaporation to add coldness to the air, but it also is not as powerful as the other systems on this list. It’s best used in homes where you already have a cooling solution, but maybe you want a boost of cold air in the room that you spend the most time in such as a bedroom or office.

Another thing that sets the operation of this ventless air cooler apart from that of other ventless air conditioning models is that with other ventless models for the best results you will want to close all of the doors and windows. However, with this cooler by Honeywell, you can open windows for cross ventilation. This fan system is great because it is a cheaper and more eco-friendly solution for temperature control in only one location.


  • Low power consumption.
  • Detachable water tank.
  • Low water alarm.
  • Remote control operation.
  • Digital display control panel.
  • Cools and dehumidifies air for a small space.
  • No compressor.
  • No installation.
  • Uses water to cool.

What is a Ductless Air Conditioner?

What is a Ductless Air ConditionerA ductless air conditioner cools the air in the room without using a system of ductwork. Ducts are the passageways for air that are installed throughout a home that blow air through vents to heat or cool. Traditional heating and cooling systems use ductwork systems within the house to ventilate air, heat, and cool the house. A ductless air conditioner does not require any ductwork which makes it more versatile for nontraditional spaces. In some cases, a ventless air conditioner is a more cost effective solution to heating or cooling a room.

Ductless air conditioners can be installed almost anywhere.

For old homes with no ducts, ductless air conditioners may be the only solution to effectively heating and cooling the space. If you are converting a space, such as a garage or shed, ductless air conditioners can help you control the climate all year round. Installing ductwork can be expensive and require messy remodeling, and ductless air conditioners are often the easiest and most cost effective solution for renovated outdoor spaces and extra rooms.

Ventless air conditioners have benefits over central air systems.

A ventless air conditioner is an efficient fix for controlling the temperature within a single room and they have results very similar to that of a traditional air conditioning system. A central air system uses a system of ducts throughout the house to heat and cool the entire home, whereas a ventless air conditioner has an indoor unit which is connected to an outdoor unit via wiring and piping to create localized, or restricted to a single area, air conditioning. Ventless air conditioning has many benefits over central heating systems, but which one is right for you will depend on several factors.

There are single-zone and multi-zone ventless air conditioners.

Many ventless air conditioning systems use what is called a split system, meaning that there is both an inside and outside part which is connected via wiring and tubing. The inside ventless air conditioning system will often be mounted to a wall to make the most out of the space. A ventless air conditioner is a form of single-zone heating and cooling, which means that it controls the space for a single room. A multi-zone ventless air conditioning system can offer heating and cooling for multiple rooms in the home or the entire building.

Provides cooling directly to the space.

Ductless air conditioners use a chemical refrigerant to chill the air, filtering out humidity to provide cooled and less humid air to the space, and the chemical refrigerant returns to its liquid form to be reused for cooling. Ventless air conditioners are a highly efficient form of air conditioning that is safe and effective for providing air temperature and humidity control for a home or workplace. A cooling system with ducts will lose some of the temperature as it travels through the ducts, making it up to 20% less efficient than a ductless system.

Frequently Asked Ventless Air Conditioner Questions

Frequently Asked Ventless Air Conditioner QuestionsHow Do You Know If A Ventless Air Conditioner Is Right For You?

Your home doesn’t have ducts and you want a hassle-free installation.
If you are moving into a home that doesn’t have ducts or would need serious repairs or remodeling to renovate old ductwork, you should consider a ventless air conditioner as a most cost effective solution. Installing ductwork can be a messy and lengthy process. The installation process for a ventless air conditioner is far less intensive than that of a central heating system, which is typically integrated as the house is built and not after the fact.

You want to downsize your cooling to one or two rooms.

A ventless air conditioning system can be used to cool a localized area so you can use it only in the rooms that you will use the most such as a living room or bedroom. If you live in an old house with an inefficient heating and cooling system, instead of replacing the entire system you may want to consider the installation of a ventless air conditioner so that you can at times cut off the central air and only use the air conditioner in the room that you’re in, such as in your bedroom while you sleep. This is better for the environment as well as you aren’t using as much energy.

You need air conditioning solutions for a renovated space.

For a renovated space or an outdoor space, a ventless air conditioner may be one of the only solutions to providing adequate cooling. A ventless air conditioner can be installed in a shed, garage, or other renovated outdoor space. Ductwork is not possible for every structure, and ventless air conditioners are just as effective without the hassle.

The versatility of a ventless air conditioner is often the most attractive aspect to consumers, as well as it’s potential for saving you a lot of money and being better for the environment. If you’re looking for an air conditioning system for an old house, a house without ducts, or a renovated space, a ventless air conditioner may be right for you.

What Are The Pros And Cons Of A Ventless Air Conditioner?


Heating and Cooling When and Where You Need It

Ventless air conditioning, also referred to as ductless air conditioning, is a far more versatile solution to heating and cooling a space than using ductwork. A ventless air conditioner can be installed almost anywhere, making it easy to control the temperature within a converted space such as an extra room, work shed, or garage. If you need to condition or heat almost any room, there is a ventless air conditioner out there that can help.

Save Money By Localizing Heating

To make the most of your heating and cooling system, use a ductless air conditioner with single-zone function to cool only the room that you will be using. By closing the doors in your house to unoccupied rooms and using a ventless air conditioner in the room that you are in, you can have a comfortable environment without wasting money and energy heating and cooling the entire house, when you will only be using one or two rooms.

Ventless Air Conditioners Are Quiet

If you have to talk over your air conditioner, it may be time to upgrade to a modern model with quiet operation. Old, rusty air conditioning systems can make a variety of unpleasant noises as they struggle to inefficiently heat or cool the room. The ducts themselves can also be a source of obnoxious noises as the air passes through, rattling the ductwork. Modern high-quality ventless air conditioners offer near-silent operation so you can enjoy a temperature-controlled environment without noise pollution.

Can Be Used in One or Multiple Rooms

A single-zone ventless air conditioner is great for cooling a single room such a bedroom, living room, or garage. Both single-zone and multi-zone ventless air conditioners employ the same strategy of cooling via a split system of one compressor outside that is connected to the air conditioning unit inside. One outdoor compressor can provide cooling for five indoor conditioning units, meaning that you can use ventless air conditioners to cool your entire house and not just one room.

Controlled Via Remote Control

Most central heating and air systems use a wall control to adjust the temperature and fan of the heating or cooling system. This means that to adjust the temperature in one room you may have to go to the other side of the house to reach the wall control panel. Most modern ventless air conditioning systems operate using a remote control, so you can easily turn the temperature up and down, and the air conditioner off and on, with the convenient click of a remote button.

Easy Installation

Ventless air conditioners are often used instead of window air conditioners because they use only a small home for installation which prevents back draft from the outdoors and is less damaging to the existing structures, which can even be a security issue. A window air conditioner could be compromised in break in, where as a ventless air conditioner doesn’t give any weak spots. The installation process is easier, and the results are a less visible and loud air conditioning unit.

Energy Efficient

Compared with central heating systems a ventless air conditioner is far more efficient. Duct systems lose a lot temperature as the air flows through the vents, reducing the power of the cooling by the time it reaches the room, which is why it uses more energy overall. Central heating and cooling systems cut on and off to cool the air, whereas a ventless cooling system can be turned up and down, which saves more energy.

Tip: When buying an air conditioner or other appliance look for an ENERGY STAR label. ENERGY STAR certified appliances are tested by a third party and certified more energy efficient.


Up-Front Cost

A ventless air conditioner for a single room costs several times more than a window air conditioner, so the up-front costs can be more expensive. If you already have a ductwork system in your home, it will be more expensive to replace the whole thing with a multi-zone ventless system instead of a new ductwork system or repairing the existing ductwork system. The reason why it’s worth the up-front cost is because you will trade the up-front cost for reduced energy bills over time. The total amount possible saved in energy bills by switching to a ventless air conditioner will depend on the space and climate.

May Not Work For Extreme Conditions

While a ventless air conditioning system offers many of the same benefits of central cooling system, a ventless air conditioning system may not be powerful enough to handle extreme weather conditions. For extreme weather conditions, you may need to invest in a more industrial cooling or heating system.

Requires Monthly Maintenance

Compared with other air conditioning systems, a ventless air conditioner requires maintenance more often. You will need to clean the filter at least once a month to keep the air conditioner working in top condition. If you do not change the filter often enough you will risk damaging the system and spending more money in the long-run in repairs. Doing regular maintenance will prevent the hassle of hiring a professional to repair issues that could have been prevented by washing the filter out regularly. Most modern ventless air conditioners make it easier than ever to find and clean the filters.

Tip: Don’t trust your gut. Actually do the calculations to see how much money you can save. To get the correct calculations you can consult with a local contractor to determine what is the most efficient air conditioning solution for your home or workplace.

What Kind Of Maintenance Does A Ventless Air Conditioner Require?

A ventless air conditioner may require more maintenance than other kinds of air conditioning systems. The filter will need to be washed every single month. If you live in a home with a lot of people, animals, or smokers, you will want to change the filter even more. Failure to appropriately maintain the filter can cause a system failure that could compromise the cooling system requiring expensive repairs.

Don’t skip maintenance!

Skipping maintenance will not save you money in the long run. If you don’t replace the filter, the quality and efficiency of the airflow will diminish and the air conditioner will begin to struggle to effectively cool the space. Maintenance can be done yourself with the proper safety precautions, such as wearing gloves, goggles, and slip-proof shoes, as well as a few tools such as a screwdriver to take the unit apart and put it back together. Clean the filter at least once a month.

New models of ventless air conditioners make it easier than ever to clean the filter. For the best results, hire a professional to take care of all maintenance on your HVAC units. Hiring a professional HVAC technician for even small jobs can ensure that you don’t accidentally damage the system and void the product warranty.

What Kind Of Installation Does A Ventless Air Conditioner Require?

While some homeowners are hesitant to go for ventless air conditioners for aesthetic reasons, many who were hesitant at first report that after installation they forget that the ventless air conditioner is even there. Often ventless air conditioners have a white or beige color and don’t have any other options. They are usually built in to a wall in place of a window or baseboard cooling system. You can not cover a ventless air conditioning unit as it will not work properly and without proper ventilation serious damage can be done to the unit.

Ventless air conditioners are less expensive to install than central air systems.

Installation for ventless air conditioners is less expensive than central air conditioning. If the home already has a central heating/cooling system and it is inefficient or broken, it may be less expensive to repair or replace that existing system, but for a home without ducts, installing ventless air conditioners will be less expensive than installing a central air conditioning system. The up-front installation costs may be slightly more, but they make up for by being more energy efficient over time.

A split-system air conditioner has a unit inside and a compressor outside.
For a split-system you will need to work with a contractor to determine the best placement of your outdoor compressor. Inside the house, the compressor will be connected to an indoor air conditioner which is usually installed into a wall or be a stand alone unit. The size of the ventless air conditioner can vary.

DIY installation risks voiding the factory warranty.

Working with a contractor or professional installer is the best wall to ensure the correct results, but some new ventless air conditioners are so easy to install that you may be able to do it yourself. The risk of trying to install the air conditioner yourself is that you may damage the parts, void the factory warranty, and an improper installation can cause the unit to be less efficient over time which will cost you a lot of extra money before you even realize it.

Time needed for installation can vary depending on the space.

The installation process for a single-zone unit is usually completed in a couple hours or less, but for a multi-zone installation it may take multiple days. The time frame for the installation of a ventless system can vary, but it is typically a lot less time consuming and messy than the installation of a central heating system. Installing ductwork is a huge project to take on, and ventless air conditioners have the same effect, but with a hassle-free installation.

Ventless Air Conditioner Comparison Chart

Air ConditionerBTUCoverageDimensionsWeightRating
BLACK+DECKER BPACT08WT8,000100 - 150 square feet16.5 x 11.5 x 26 in52.9 pounds 8
Honeywell MO08CESWK8000/ 10000250 to 450 Sq.Ft.13.5 x 14.6 x 27.7 in43 pounds 8
Whynter ARC-14S14,000500 sq ft 16 x 19 x 35.5 in80 pounds 8
Honeywell 300-412CFMN/AN/A15.7 x 13.5 x 31.5 in18.5 pounds 7


In this ventless air conditioners buying guide we have presented a list of the top ventless air conditioner reviews that are currently on the market, in order to help you obtain a better understanding of what a ventless air conditioner is, why you might need one, and what to expect from it in terms of installation and costs. In order to find the best ventless air conditioner for you and your family there are several things to take into consideration.

Easy to Install & Eco-Friendly

The best rated ductless air conditioners on the market are easy to install and offer powerful, energy efficient operation that saves you money over time. Many are drawn to ventless air conditioners because they are a more eco-friendly and secure solution to cooling for a single room or space. Ventless air conditioners can at times be more expensive in up-front costs, but over time will make up for it by being more energy efficient than other solutions. Using a ventless air conditioner to cool only the room that you actually use will greatly reduce your environmental impact and reduce your monthly energy bills.

Utilizes Compressors

Most of the ventless portable air conditioner systems in this list are split system, meaning that they utilize a compressor of some sort, which uses a refrigerant to cool air and blow it back into the house via a system of pipes and wires that attach the compressor to a unit inside of the home. The unit inside of the home may vary in size, shapes, and colors, and are often portable so you can move them from room to room. Not every unit on this list uses a compressor system, so take note of the difference between the different kinds of air coolers/conditioners.

Not Best Solution for Extreme Climates

Ventless air conditioners that are portable are best used in conjunction with other heating or cooling methods, or for localized use in only one part of the house. If you close all the windows, doors, and secure any drafts you can get the most out of a ventless air conditioner. There are also other kinds of ventless cooling solutions such as an evaporative cooler which uses evaporated water to add coldness to the air. These kinds of products work best in moderate temperature environments, and may not be effective in extreme heat or cold.

Hassle-Free Cooling For Renovated Spaces

If you’re looking to renovate a room, garage, or shed, a ventless air conditioner is great for single spaces such as this. A window air conditioner may give intruders a way into your home, but with a ventless air conditioner there is only a small hole needed for connection so it does not weaken the integrity of your windows or walls. If your home doesn’t already have an existing duct system, the up-front costs of a ventless air conditioning system are less expensive than a new central cooling system.

Requires Regular Maintenance

You will need to do maintenance on your unit such as cleaning the filter at least monthly if not more often. If you smoke or have pets you will want to clean the filter even more often. To save money, opt for a ventless air conditioner that has a filter that can be cleaned and doesn’t require replacement. You will want to take maintenance costs into consideration since failing to complete the required installation can destroy your unit or cause it to function ineffectively, which will end up wasting your money.

Finding the Air Conditioner Right For You

Finding the right air conditioner for your home is essential to saving the most money while providing a safe and comfortable environment for you and your family. A ventless portable air conditioner has many benefits, such as easy installation and reduced energy bills. The up-front cost for a good portable air conditioner is more than that of a baseboard or window air conditioner, but it is worth it in terms of long-term performance and air quality as well as long-term costs in utility bills.