Quick answer
A blower fan is usually a centrifugal fan, in which a motor spins a bladed wheel called an impeller inside a housing. The wheel throws air outward and out of the outlet in a strong, directed stream, building more pressure than ordinary fans.
- Blower fans are used in car ventilation, material handling, and climate control.
- Types covered include AC, DC, centrifugal, mini, portable, car, industrial, fireplace, and carpet blowers.
- When drying a wet floor, use a GFCI-protected outlet and keep the cord out of standing water.
A surprising amount of industries use the term “blower fan.” There is also a lot of confusing information about them. So, let’s clear things up.
What is a blower fan?
A blower fan is usually a centrifugal fan. A motor spins a bladed wheel, called an impeller, inside a housing. The wheel throws the air outward and sends it out of the outlet in a strong, directed stream. Blowers build more pressure than ordinary fans. They are used in car ventilation, material handling and climate control.
Keep reading to find simple explanations for what blower fans do, different types of blower fans, and how to use them.
What Does a Blower Fan Do?
A blower fan produces a strong air current in one direction. They have many uses in different industries.
Blower fans help cool:
- Industrial machines
- Computers
- Generators
- Medical equipment
- Cars
- And more
Blower fans can also help clear an area or machine of gases, circulate air, and manage the temperature in a specific space.
They work best when directed at one particular location.
That’s why they are a godsend for when you need to dry out a carpet or room.
What Are Other Names For a Blower Fan?
Blower fans are known by several different names.
You might hear them called:
- Air movers
- Barrel fans
- Drum fans
- Squirrel cage fans
They are called air movers because they move air and manage the temperature and humidity of a space. They are occasionally called barrel or drum fans because of their cylindrical shape.
Squirrel cage fan is the most colorful term.
It comes from the fan wheel itself, a drum of many small blades that looks like a hamster wheel.
How Blowers Fans Work
One handy description is that “air blowers are like reverse windmills.” Credit for that quote goes to Craig of applianceanalysts.com.
Fan blowers work by using a motor to spin an impeller at high speeds. The impeller creates suction that pulls air into the blower fan, then pushes it out towards another area.
Essentially, the blades pull in the air and shoot it out at high speed.
Fans Vs. Blowers: All the Differences
Fans and blowers may seem like the same things, but they are actually pretty different.
The main difference between a standard fan and a blower is how they move air, not raw power. A standard fan is usually an axial fan. It moves air straight along the axis of the fan and suits high-volume, low-pressure jobs. A blower is usually a centrifugal fan. It turns the air through 90 degrees and builds more pressure, so it suits jobs where air has to be pushed through ducts or against resistance.
Blowers are common in industry, but they are also in everyday things such as car ventilation systems and home furnaces. Blowers work best when they have been directed towards a specific location or set of objects, while fans work well to cool an entire room.
The average homeowner should be more concerned with purchasing a fan than a blower.
Large industrial blowers have higher power needs. They use impellers, motors, bearings and other mechanical parts that need regular maintenance.
Here is a quick chart to show the major differences:
| Standard Fan | Blower Fan |
|---|---|
| Wider airflow | Directed airflow |
| Higher volume, lower pressure | Lower volume, higher pressure |
| Usually axial (propeller) blades | Usually a centrifugal impeller |
| Cheaper (generally) | More expensive |
Types of Blower Fans
There are a few different types of blower fans.
Knowing the types will help you better understand fan blowers and which type might best suit your personal needs.
Types of fan blowers:
- AC blower fan
- DC blower fan
- Centrifugal blower fan
- Mini blower fan (personal blower fan)
- Portable fan blower
- Vehicle blower fan
- Industrial blower fan
- Fireplace/furnace fan blower
- Carpet fan blower
- Fan blower and compressor
- Fan blower with PMW
What Is an AC Blower Fan?
An AC blower fan uses an alternating current (AC) motor.
It is stationary, meaning it does not move or rotate (this is true of most blower fans).
You will typically find AC blower fans in heating, ventilation, and air conditioning (HVAC) equipment.
What Is a DC Blower Fan?
A DC blower fan is also stationary, but it uses a direct current (DC) motor instead of an AC motor.
It is smaller than an AC blower fan and provides more speed control. DC blower fans work well for computers and other electronic devices.
What Is a Centrifugal Blower Fan?
The most common type of blower fan is the centrifugal fan.
This fan has a rotating impeller that pressurizes the air as it moves through the fan. The centrifugal force then pushes the air out through a nozzle or pipe.
This type of blower fan is found in both DC and AC versions.
What Is a Mini Blower Fan?
A mini blower fan is the smallest type of blower fan.
It is also the most portable and can be used in a variety of applications.
This type of fan blower is perfect for personal use, so you could also call it a “personal blower fan.”
What Is a Portable Blower Fan?
Many blower fans are portable.
You can pick them up using the handle grip positioned on the top of the barrel-shaped fan.
This makes blower fans very convenient. You can move them around your garage, workshop, or industrial space.
What Is a Blower Fan In a Car?
A blower fan in a car is used to regulate the heating and cooling of different parts of your vehicle. Pretty much every car has one.
The blower fan is powered by a blower fan motor.
A blower motor is located inside the ducting system of a car’s ventilation system.
What Is an Industrial Blower Fan?
Blower fans are very common in manufacturing equipment, ductwork, and heating and air conditioning equipment.
Companies use them to move air in these applications.
Industrial blower fans are usually large pieces of equipment that will require regular maintenance in order to keep the blower fan in good working condition.
What Is a Fireplace Fan Blower?
A fireplace blower fan is used in gas or propane-powered fireplaces.
It sends warmed air into your room to help spread the heat.
Fireplace blowers are made for specific fireplace models, so follow the maker’s installation instructions.
It spins air around the unit before releasing it back into the room.
What Is a Carpet Fan Blower?
A carpet fan blower, also called an air mover, is used to dry carpets and floors. It is common in water damage restoration.
When you dry a wet floor, plug the air mover into a GFCI-protected outlet and keep the cord and plug out of standing water.
What Is a Fan Blower and Compressor?
A fan blower and compressor use different pressure ratios.
Compressors work at a high-pressure ratio, and blowers work at a lower-pressure ratio (but higher than standard fans). Air compressors are machines that take in air and then push it into a small space.
Air blowers move air and gas but with a little less pressure.
What Is a Blower Fan With PWM Functions?
A blower fan with PWM functions includes pulse width modulation (PWM).
PWM is a way to control fan speed. On a 4-pin PC fan, the fan gets a constant 12V supply on one pin and a separate PWM control signal on another. The fan speeds up or slows down with that signal.
The benefit is quieter running, because the fan can slow down when less cooling is needed.
Can I Use a Blower As a Fan?
You can use a blower as a fan. A blower fan produces a stronger airflow but the air shoots out of the device in a straight line.
Therefore, blower fans work best when you want them targeted on one precise person or spot.
They suit cooling a specific area, such as a workshop table or an indoor cycling bike.
Do Air Movers Cool?
Yes, air movers cool.
They move a strong stream of air in one direction.
Blower fans create a cooling effect by moving hot air out of the way and replacing it with cooler air. However, they will mostly cool down one targeted area and not the entire room.
Air movers cool you down by increasing airflow over your skin and speeding up the evaporation of your sweat.
Blower Fan Brands
Here is a shortlist of popular blower fan brands:
- Lasko
- Stanley
- Dewalt
- X-Power
- Shop-Vac
- Ridgid
- B-Air
- Mounto
- Vacmaster
- OEMTOOLS
- Soleaire
- Vevor
What Fan Blower Should I Buy?
Here are some examples for different uses:
| Use/Need | Example |
|---|---|
| Personal Cooling | XPOWER P-80A Mini Mighty Air Mover |
| Drying/Water Damage | Soleaire Super Monsoon SA-SM-1HP-GY |
| Large-area drying and ventilation | XPOWER P-26AR Industrial Axial Air Mover |
| Workshop blower | OEMTOOLS 24878 Mechanic’s Blower Fan |
Ridgid and B-Air also make air movers.
Check out this video for a quick demonstration of two fan blowers:
Final Thoughts: What Is a Blower Fan?
Although blower fans seem to function only as workplace or industrial fans, you might be surprised at how many people use them at home.
For targeted cooling power, they are hard to beat.
What to read next:
- What Is a Dual Mount Ceiling Fan?
- What Is a Box Fan?
- What Is an Attic Fan?
- What Is a Booster Fan? (Explained for Beginners)
Sources
The American Society of Mechanical Engineers (ASME)
Researchgate: Encyclopedia of Chemical Technology
US Department of Energy (Improving Fan System Performance sourcebook)
Noctua (4-pin PWM fan connections)
XPOWER (P-26AR air mover)
Reviewed October 2026. We corrected how blowers differ from standard fans using the US Department of Energy fan sourcebook, fixed the sections on carpet air movers and PWM control, and removed sections we could not support.