Window fan vs. Box fan. The comparison

Window fan vs. Box fan. The comparison

When choosing between a window fan and a box fan, the most important thing is to understand how they work and what circumstances they work best.

Window fans and box fans work to keep you cool in different ways. The best box fans are used to being close to people to get wind directly from the fan.

The fresh breeze from the fan makes one feel cooler. Window fans work a little differently. Their purpose is to draw warm air from inside the room and push it outside while bringing cooler air from outside into your room.

To be more clear, those basic differences will make it easier for you to determine if a window fan or a box fan is a better choice for you. With that said, let's explore the pros and cons of each.

The pros and cons of the best window fans


It can be used in conjunction with other window fans: If you have two windows in your room, you can use some window fans to

The best window fan can be reversed: Normally, these fans can be used in reverse at any time of the day; you can draw cool air in or push cool air out depending on the outside temperature and room temperature.

Very effective: Window fans effectively cool the air in your home/room.

Use electricity at night when cheap: The idea is that when it is cooler at night, you can use a window fan to bring in cool air and use that cool air to keep your home cooler during the day.


May bring bad smell: If there is trash or odors around your windows, a window fan can transmit that smell into your home or room (depending on how the fan blows).

You may need a windows monitor: Obviously, when the window is open, the chances are that bugs are entering the surroundings inside your house. You may want to have a window fan screen to keep pests out if you are in an environment with a lot of pests! In addition, things like pollen and dust can also be introduced through window fans.

Criminal: We hope you are not in an area where you need to worry about criminals jumping into your windows, but it can be thought of as a window fan that will leave your windows open.

Noise: As you probably already know, opening the window helps to make your room airier before the noise from outside. There are no windows to reduce noise, which can be an issue if you live outside in a noisy environment.

You can refer to some models of the best window fan below:

Air King 9166F 20" Whole House Window Fan

best window fan, best box fan

Air King's 9166F is a durable, powerful, and affordable fan that can be used in any indoor setting, from industrial to residential. With its rugged housing and impact-resistant plastic blades, this fan can stand up to the toughest environments. The front-mounted switch with rotary controls makes it easy to adjust the speed of the fan and the rear-mounted cord allows you to plug it in without having to reach behind the unit.
This powerful window fan is perfect for drying out damp basements, removing odors from kitchens and bathrooms, or providing relief from the oppressive summer heat.

Comfort Zone CZ310R 3-Speed 3-Function Expandable Reversible Twin Window Fan

best window fan, best box fan

The Comfort Zone CZ310R 3-Speed Functional Twin Window Fan is a great addition to any living space. It features three different speed settings, so you can adjust the airflow to suit your environment. The fan also has a cooling function, so you can use it in the summertime to keep your house cool and comfortable.
Stop sweating in the summer and shivering in the winter. With Comfort Zone's CZ310R 3-Speed Functional Window Fan, you can stay cool all year round, no matter what your thermostat says. This twin window fan has 3 different speeds to choose from, so you can customize airflow to suit any environment. It also has a multi-function option that allows you to either refresh the room or cool it down.

The pros and cons of the best box fan


Portable: The best box fan is small in size and very portable, so it can be easily moved when you move from room to room.

More airflow: On average, box fans tend to have higher CFM. Since the fan has direct airflow towards or at the person, it creates a more immediate cooling effect.

Can double as a window fan: It is not uncommon for a box fan to be used in a window as a window fan to push air out, drawing cool air in.

Can double as an air filter and be used as a small replacement AC: It is not uncommon for a box fan to double as an air filter. It sounds crazy, but some people have placed water and ice packs in front of their box fans so that the fan blows cold air throughout the room.


When used in windows, they are not optimally suited: In case the best box fans are used in windows like window fans, they will not fit in the space as well as the best window fans, leaving space for bugs, dust, pollen, etc., to enter through the window. And also affect the optimal cool/warmness ratio of air to and from the window.

There are better options for direct cooling to people: If you are looking for a stronger breeze to go directly into yourself or the room, there are stronger options than box fans. Tower fans, pedestal fans, or floor fans all have more power and deliver more breeze than box fans.

Tips for using the best box fans in windows

The best way is to use 2 (or more) box fans, one that effectively draws in air and one that effectively pushes it outside, creating drafts through your room.

You want to place a window fan that draws in outside air on the coolest side of the house to bring in cool air. The inside of your house is the warmest place, so the air is blown out.

Is it better to have the best window fan blowing in or out?

If you only have one fan, you will want one to blow in if it is cooler outside, so bring in fresh cool air at night. If the air outside is warmer than inside, then you will want to blow the air out.

Things to keep in your mind when choosing the best window fan

Consider these features when navigating today's many window options. Some fan characteristics will be more suitable for your space that you need to keep in mind to get the best cooling effect.


When purchasing for the best cooling fan for windows, it is important to consider which of the three is best suited for the job. The best window fans come in three different types: standard frame, floor, and countertop.

Standard frame: This type of window exhaust fan is designed to be placed inside the window between the glass door and the sill. Unlike box fans, which are placed simply on the door sill, window fans are installed using mounting hardware and have a panel to fill in the gaps on either side of the fan. Some standard frame fans can have single or double blades.

Unlike other fans, the standard chassis fan is reversible, allowing it to operate as an exhaust fan, exhaust fan, or both simultaneously. Since the standard frame is placed inside the window, it does the best to move air in or out of the room.

Table: A table fan is smaller than a window fan but has a bracket that allows it to stand upright on a flat surface, such as a tabletop, without installation. Unlike standard fans, fixed frame fans, table fans have a tilt feature that allows users to face up or down.

Floor: Floor fans, like desktop models, are attached to the base. They are taller than table fans and often have larger blades, providing more air movement. They often have an adjuster that allows the user to tilt them up or down like table fans.


Since the window fan is designed to be installed inside a window, it should not be larger than the size of the window. For this reason, most standard window fans can fit windows about 26 inches to 34 inches wide.

When purchasing a window fan, make sure to choose one that is small enough to fit the size of the window when opened to ensure there are no large gaps around that could allow warm air to enter the room or reach bugs, so the window has no screen. Many window fans have sliding screens on the sides that cover these gaps to prevent drafts around the fan while also preventing bugs and rainwater from escaping.


The best window fans consist of a housing containing one or two blades protected by a mesh. These parts are usually constructed from high-grade plastic or metal.

Fan blades: Window fans with plastic or metal blades. Fans with plastic blades are lighter and more energy-efficient than metal fans. However, since plastic parts aren't as durable as metal, they don't create much airflow.

Metal fans, although heavier, can carry more loads and can therefore be equipped with larger motors that produce more RPM. As a result, metal fans can generate an air flow of 3,500 CFM or more compared to plastic fans, which are limited to around 2,500 CFM.

Mesh: All fans have a metal or plastic mesh to prevent objects or hands from coming into contact with the blades. While metal meshes are more durable than plastic and can withstand more abuse, they are also susceptible to rust and corrosion.

Housing: Most window fans have housings made of durable grade plastic. Although not as sturdy as metal, the plastic shell helps reduce the overall weight of the fan. Plastic also doesn't rust and corrode, eventually damaging metal fans.


A fan's airflow, an indicator of its cooling capacity, measures the speed at which air enters or exits a space. Air flow rates will be specified on the fan manufacturer's website and on the fan packaging in cubic feet per minute (CFM).


When it comes to keeping your home cool and your utility bills low, you can't beat a window fan. These units attach easily to the bottom of a typical window frame and circulate air to provide a gentle breeze, consuming much less energy than an air conditioner. In addition to drawing in outside air, you can reverse the action to push hot indoor air and odors out — one reason window fans can be a major asset in a kitchen.

We hope you have differentiated between window fans and box fans through the above post.

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