2020’s Best Portable AC for Vehicles

May 13, 2020

You want to be comfortable when you are in your home on wheels. One sure-fire factor that affects your level of comfort is the temperature in your motorhome. Almost all RVs have AC pre-installed, but not all do.

If you don’t have an ultra-modern motorhome you will have to opt for a portable AC for a car that suits your vehicle. You also have to consider purchasing one if you are buying a secondhand RV that doesn’t have an AC unit or that has an irreparably broken one.

Here we will give you a list of the best options to choose from when you’re looking to purchase a portable AC unit. Let’s kick things off by showing you the different types of portable coolers out there.


  1. Suitable Portable Coolers for Your RV or Camper Van
  2. Comparison Table of Different Cooling Units
  3. Take These Factors into Consideration When Choosing a Portable RV Cooler
  4. Best Air Coolers for Your Vehicles
  5. Wrap Up

Suitable Portable Coolers for Your RV or Camper Van

There are a number of different types of portable coolers, but not all of them are practical for use in your RV or camper van. You will find that handheld options, for example, will only be good for cooling one person and may only work for cooling a person’s face. To help you sort through the many options on the market, here are the most suitable for cooling down your camper van or RV.

Portable AC

Portable AC for RV or Van

A portable AC for a van is self-contained and is an ideal choice for use in RVs or caravans in climates with higher humidity levels. They are good for cooling small spaces and typically have wheels so they can be moved around easily if necessary. They are designed to sit on the floor and come with a setup kit so they can be easily and quickly put together.


  • Effective: These types of coolers are some of the most effective on the market thanks to how well they cool a space.
  • Different size options: They can be found in different sizes to accommodate different size rooms as well.
  • Dries out the air: If you are in weather that has more humidity you might want a cooler that will dry out the air. This will help you stay cool as well as comfortable on the road.


  • Uses a chemical refrigerant: You will have to spend more time and finances on maintenance.
  • Doesn’t work well for a dry climate: AC contributes to dehydration and aggravation of respiratory problems.
  • Most models are bulky and heavy: This makes it hard to move them around, from vehicle to vehicle or room to room.
  • High energy consumption: This makes these units more expensive to run for longer periods of time.

Portable Electric Fan

Electric fan for RV and Van

Portable electric fans are a good option for RVs since they can be easily moved from one place to another. There are different types and sizes available. You can find window box fans, regular box fans, clip-on fans, desk or table fans, dual window fans, pedestal or floor fans, and hassock fans.


  • Lightweight: Designed to be very lightweight, these types of cooling units are easy to lift and move around from place to place and vehicle to vehicle.
  • There are cheaper models: You will find that these come at very affordable prices when compared to other types of coolers.
  • Low energy consumption: These are great for on the road, as they don’t use a lot of energy. So you can be cool while conserving energy, and your trips can be longer and more exciting.


  • Ineffective: don't actually cool the air, just move it
  • Doesn’t work well for a dry climate: dry out your skin since they blow air on your body

Evaporative Coolers

Evaporative cooler for RV

This is a type that cools the air by evaporating water. It provides a solution for the downsides of AC units and portable fans. The machines work by pulling in stale air and moving it over a cooling pad or rigid cooling media. Cool water evaporates and as a result, decreases the temperature of the air.

There are multiple factors that affect just how much this type of cooler will be able to cool the air. The cooling power of evaporative coolers is higher when you have higher temperatures and lower humidity.


  • Energy-efficient: Unlike your vehicle’s AC unit, they can be very efficient, as they use only a fraction of the energy required to power your vehicle's AC.
  • Effectively cools down the air: Unlike fans that just move the air around, an evaporative cooler effectively cools down the air.
  • Humidifies the air: Since it uses water to cool down the air, it also adds moisture, which is great for arid conditions.
  • Doesn’t use chemical refrigerants: This makes it safer and also lowers your maintenance costs.
  • Doesn’t require installation: You simply need a socket, a USB port, or a battery to work an evaporative cooler.
  • No need to run the car engine to use: Since they can run from a battery or power bank via a USB cable, there is no need to have your vehicle engine running to get this cooler to work.
  • No need to install and fit the side of a car: These are small, portable units that can be taken inside and placed on a desk or other surface.
  • Eco-friendly: By using these types of coolers you greatly reduce your carbon emissions, and also
  • There’s no heat exhausted as a result of the evaporation process.
  • It doesn’t use any Freon-like liquids.
  • It allows you to decrease the energy spent.


  • Doesn’t work for a very humid climate: Since these types of coolers use water, they will create more humidity.

Comparison Table of Different Cooling Units

Cooler Type Pros Cons
Portable AC
- Effective
- Dries out the air (pro if the weather is usually humid)
- Uses a chemical refrigerant
- Contributes to dehydration and aggravation of respiratory problems
- Most models are bulky and heavy
- High energy consumption
Portable Electric Fan - Lightweight
- Most Affordable
- Low energy consumption
- Simply moves air around, DOES NOT cool it
- Dries out skin due to how it works to simply blow the current air onto your body
Evaporative Cooler - Energy-efficient, unlike an AC unit
- Effectively cools down the air, unlike a fan
- Humidifies the air
- Doesn’t use chemical refrigerants
- Doesn’t require installation, as it can be powered by a plug socket, USB, or even a battery
- No need to run the car engine to use
- No need to install and fit the side of a car
- Eco-friendly
- Doesn’t work for a very humid climate

Take These Factors into Consideration When Choosing a Portable RV Cooler

The type of portable AC for RVs you need depends on a number of factors. You have to take into consideration your climate conditions, including dryness and humidity. You need to consider just how much cooling you need. This also depends on the size of your van, as well as extreme weather averages. Will you be spending time in a cooler area, a parked spot with shade? Or will you be on the road, in the sun for hours? When you are out in the sun, you will, of course, need more cooling power.

Powering your AC unit with the use of your RV’s engine will not be very feasible when you are on the open road for multiple days. This is where a generator comes in. Your AC unit will work on power that is supplied through a 12V socket. There is also the option to run AC units on a gas generator, but this is a very costly option, and there will be a lot of refilling stops. You can even find solar items that can help you harness the power of the sun and reuse it to power your cooling unit.

If you are using a handheld cooler you will have options for battery-powered units, as well as will be able to power them with a USB cable.

The size of the cooler you choose should be dependent on the size of the space it needs to cool. If you don’t choose a cooler with an adequate capacity you will be wasting energy, and the temperature will still be uncomfortable for everyone.

Best Air Coolers for Your Vehicles

Here are a few top options you might want to consider for your car or motorhome.

Evapolar Swamp Cooler

Evapolar evaporative air cooler

This option is quite a compact one. It is a cooler and humidifier that will work to keep small spaces cool. It is more of a personal unit and has a modern aesthetic with a 3-in-1 design. It is easy to set up and is powered by a USB plug. The unit has a compartment that houses the evaporative pad and a compartment where water is added. The pad can be easily replaced, and the unit only takes 800 ml of water.

The unit is easy to operate — you only need to add water, plug it in, and you are ready to go.


  • Cooling Capacity: Perfect for cooling personal space inside a car, caravan, or a tent up to 33 ft² or 4 m²
  • Effective Cooling: Decreases temperature by 27oF or 15oC
  • Purifies and humidifies: Makes the environment cleaner and even more comfortable
  • Patented technology: Patented evaBreeze® material in filters doesn’t allow bacteria or mold buildup, so you get cleaner air
  • High-quality materials: Made with the highest quality plastic, so you don’t get that “plastic smell” you would get from other types of coolers
  • Aesthetic design: Very pleasing to look at
  • Portable: Small and lightweight for easy portability
  • Excellent value: Reasonably priced, starting from $99


  • Personal Cooler: Best suited for cooling smaller areas
Learn more about Evapolar

Honeywell Contempo Portable AC

Honeywell Contempo

This portable unit from Honeywell is a fan and dehumidifier with a dual filtration system. It is suited for rooms no larger than 400 feet2 that have poor circulation, which is more than enough for a caravan or car. It is also portable enough so you can move it from home to car.


  • Dual hose design: This allows for effective air cooling for areas up to a size of 400 feet².
  • Low energy consumption: It can run on 2 AAA batteries.
  • Remote Control: Allows more convenience for users
  • Multiple Modes: Three fan speeds and a sleep mode meet your different needs at different times.


  • Dehumidifies air: As such, it is not a good choice for dryer climates.
  • Expensive: With an approximate cost of $399.99

O2 Cool Electric Fan

O2 Cool

If you just need a fan, this model is battery-operated but also comes with an AC adapter so you can plug it into an outlet. It is good for personal use in your RV or another vehicle and can be used both indoors and outdoors.


  • Energy-efficient: Works from rechargeable batteries
  • Multipurpose: Includes a USB port for charging other devices through the unit
  • Lightweight: Weighing in at 3.52 pounds
  • Slim design: Helps you keep more of your floor real estate


  • Does not cool air: It merely moves the present air around and does not actually cool the air.
  • Lacks versatility: Only speed settings

Wrap Up

When you are on the road in your RV, camper van, or car, you want to ensure you keep yourself and all your passengers or guests comfortable. You can’t always rely on the cooling units the vehicle comes with. In these times you may benefit from having a portable AC for a car. There are a couple of units types to choose from, all with their own sets of advantages and disadvantages.


An optimal solution is an evaporative cooler as it provides a solution for the cons of the other types of coolers. Where AC units or fans are not energy-efficient or do not actually cool down the air respectively, an evaporative cooler does. And if you need a truly portative option that is quite affordable, very user-friendly, and highly effective, try Evapolar.