Using a Portable Air Conditioner in a Room Without a Window

Portable Air Conditioner

Portable air conditioning is not a new thing, and there are plenty of devices that fall under this particular category.

When looking for something more powerful than a regular fan, you should consider getting a portable air conditioner, as it can cool any room in your home or business.

Can I use a portable air conditioner in a room without a window? Yes, you can vent your portable air conditioner without a window through either a dryer vent or a drop-ceiling wall. You can use these methods to vent your portable air conditioner and cool your room without any potential danger.

This article will learn how to vent your portable air conditioner even without a window properly.

Portable Air Conditioners

The portable air conditioner is a type of window air conditioning system that comes in different formats.

They are both self-contained systems that are used to cool your indoor spaces. Portable A/Cs are known to be less expensive than a whole-house HVAC system.

A portable air conditioner is designed to sit inside a room and not hang from a window, but both regular and portable ones need proper ventilation.

The advantage of portable A/Cs is that you can use them in rooms with or without windows. With portability in its features, you can expect it to be moved from one location to another.

Ways to Ventilate a Portable Air Conditioner

When it comes to proper ventilation, a portable air conditioner always relies on placement. It is not advisable to use an extension cord, and you need to have your hose straight for it to work efficiently.

While the machine is known for its aesthetics, hoses are not. Here are some ways to ventilate and use your portable air conditioner even without a window:

Venting Through a Door

Because of how a portable air conditioner is designed, warm or hot air needs to go elsewhere. The idea is that it should be outdoors, and it will always depend on where the unit is placed.

If you plan to put it in the living area in the middle of your home, door ventilation can be an option.

The easiest way to vent it through a door is by using a sliding door, as there are many kits available that are made specifically for sliding doors.

This will allow you to vent the exhaust outdoors, and it is known to be easy to use and can accommodate any machines.

Venting Through the Ceiling

Another option is venting through your ceiling. If you have a drop ceiling in the room, this is recommended.

The only drawback is that you won’t find drop ceilings in many modern residential homes, though they can be quite common in older homes with higher ceilings.

It would help if you rigged an exhaust vent to work with a drop ceiling tile in your home, but fair warning: It can be quite tricky.

However, it is worth a try if you have a problem with your portable air conditioner. This is because hoses are not supposed to be light, so you might need to get a ceiling vent kit for this.

Venting Through a Wall

If all the options above fail, and you have no other choice, as you need to send the exhaust from your portable A/C outside, you can try this last option. This can be the most drastic, as you need to install a vent in your business or home wall.

It is not easy for many DIYers out there, so it is recommended that you hire a professional. If going on this path, you need to take a minute and think about how often you will use your portable air conditioner.

If you are okay with putting a large hole in your wall, consider placement, and then proceed with this solution.

Cutting a hole in your wall is very simple in a residential home, although you need to be aware of some wiring, plumbing, and studs. It is a good idea to consider what is outside of the wall and not just the inside.

Drywall and wood can be easily cut through, whereas stone and brick can be quite hard to do.

Best Ventless Portable Air Conditioners

If you still have difficulty finding the right ventilation for your portable air conditioner, you can always opt for ventless portable air conditioners.

This will alleviate the issue of finding a perfect place to put your portable A/Cs, and it works well for homes that do not have a window. Here are some of the best brands out there to choose from:

Luma Comfort EC110S

This Luma Comfort is the best portable air conditioner for small rooms; it is 500 CFM and 250 square feet. It is one of the best-buy portable A/Cs out there, as it caters to people who do not need a window.

It is also known to be the most cost-effective unit for a small room and has three cooling modes, a low noise level, oscillation, and a seven-hour timer.

The features on this particular air conditioner come in handy, as it can be operated with remote control and it has wheel casters to make it easy to move around.

It cools the air by misting it with water and, as a result, will keep you feeling refreshed. It has a water tank that can hold up to 1.76 gallons of water, and it can last for up to 8.5 hours of continuous cooling before refilling.

Honeywell CL201AE Ventless Air Conditioner

Honeywell has also developed a portable air conditioner designed for small rooms. If you need to cover a bit more space, you can try this brand.

It can cool up to 300 square feet and also includes wheels for portability. The best feature of this appliance is that it has three rhythmic wind modes that can mimic the wind’s feel.

You should also check out its washable Activated Carbon filter, which can help purify your indoor air by trapping dust or odors.

As for the cooling capacity, it has a 5.3-gallon water tank that can chill your room for at least six to eight hours.

Haier HPP08XCR

If you’re looking for a ventless portable A/C for your room, you should check out this model from Haier.

This indoor air conditioning unit is perfectly designed for bedrooms, dens, and home office spaces because of its low noise level and energy efficiency.

It can handle at least 250 square feet and has three cooling settings, a 24-hour timer, and wheels that can make it easier to move from one place to another. It has a single hose that can exhaust hot air out of your indoor living spaces.

The best part about this model is that it has a dehumidifying setting, and it can remove up to 3.6 pints per hour. It has a self-evaporation design.

Honeywell CO30XE

Another trusted brand model is this Honeywell CO30XE, a ventless air conditioner that is the best in its class.

It is the perfect choice if you live in an area with low humidity, and it can cover up to 320 square feet, which makes it the ideal home appliance.

It is the best choice if you are looking for an air conditioner without window access.

This model has three cooling speeds, an oscillation mode, an LED control panel, and a remote control. Under regular use, the 7.9-gallon water tank needs to be replenished only every four hours, so you can enjoy cool air for longer periods.


A portable air conditioner is a perfect solution for many people and homeowners who need efficient spot cooling.

It can be temporary or not, but if you do not have a window, you do not have to rule out portable air conditioning systems.

There is more than one way to vent these machines. All you have to do is ask questions and do some research.

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