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Model #3733

Store SKU #399582

Store SO SKU #1000975678

Save-Smart Energy Efficient 20 in. 3 Speed White Box Fan with Built-In Carry Handle

$2998
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  • Box fan with 3 speeds engineered to promote ample air flow
  • Energy-efficient design
  • Compact and lightweight with built-in handle for easy transport
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Product Details

Over a Century of Heritage

Over a Century of Heritage

Over the last century, Lasko has grown to an international organization in portable fans and other home comfort products.

Air Circulating Box Fan

20 in. Air Circulating Box Fan

With three speeds, Save-Smart efficiency, and easy-to-use controls, this classic box fan is an excellent choice for any indoor space.

Innovation and Safety

Innovation and Safety

Every Lasko room fan, ceramic heater, and other home comfort product comes with a long history of innovation and safety.

User-Friendly Manual 3-Speed Controls

User-Friendly Manual 3-Speed Controls

Select the speed setting for your Air Circulating Box Fan, using easy-to-grasp manual control knob.

Steel Body, Compact and Lightweight

Steel Body, Compact and Lightweight

Steel body construction offers durability and stability, while the compact design makes it versatile for any space.

Stable Design

Stable Design

Includes a set of easy-assemble box fan feet for extra stability.

Ergonomic Built-In Carry Handle

Ergonomic Built-In Carry Handle

The ergonomic built-in carry handle allows you to move this portable box fan just about anywhere in the house.

1-Year Limited Warranty

1-Year Limited Warranty

This Lasko box fan is backed by a 1-year warranty and a century of Lasko heritage.

Power and Efficiency

Power and Efficiency

This powerful fan is energy efficient, so it uses minimal wattage for maximum cooling airflow

1820 CFM

Amazing Airflow

At 1820 CFM, this box fan moves air quickly and powerfully through your space.

Ideal Size, Weight

Ideal Size, Weight

The lightweight design and built-in carry handle make it easy to move this fan around the house.

The Blue Plug with a 72 in. Cord

Safety and Peace of Mind

Thanks to a 72 in. cord and the Blue Plug safety fuse technology, your fan can be safely placed almost anywhere indoors.

For All Home Spaces

For All Home Spaces

Great for bedrooms, living rooms, garages, or anywhere you need some additional airflow.

The Lasko 20 in. 3-Speed Box Fan combines the cooling power of 3 fan speeds with the wide-area air flow of 1820 CFM air circulation and a 20 in. fan diameter, all in a compact, lightweight, energy-efficient design. The 6 ft. cord and slip-resistant feet allow flexible placement without fan slippage and the built-in carry handle makes it easy to transport the fan between rooms. The plastic material provides reliable strength and durability. Great for bedrooms, living rooms, garages, or anywhere you need some additional airflow.
  • 3 speeds make it easy to select a customized airflow level
  • Circulates up to 1820 CFM for ample cooling power
  • Plastic housing provides durability and strength for extended use
  • Energy-efficient design helps conserve power
  • 6 ft. cord allows flexible placement away from an outlet
  • Slip-resistant feet help prevent fan sliding for improved safety during use
  • Compact, lightweight design for convenience
  • Built-in carry handle makes it easy to transport the fan between rooms
  • Equipped with Lasko's patented, fused safety plug
  • ETL safety listed
  • Seal your windows to keep the elements at bay and utility bills low. Check out our Project Guide for helpful tips.
  • Home Depot Protection Plan:

    Home Depot Protection Plan
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

59Questions
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Q:Is this battery operated
by|Aug 9, 2022
6 Answers
Answer This Question

A:  No, its 120vac

by|Aug 11, 2022

    A:  Plug in only

    by|Aug 15, 2022

      A:  No, it is corded.

      by|Aug 10, 2022

        A:  No, it plugs in.

        by|Aug 13, 2022

          A:  This fan is not battery operated 

          by|Aug 15, 2022

            A:  This unit is not battery operated. Recommended to be plugged directly to wall outlet with 120V.

            by|Aug 10, 2022
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              Q:Is Lasko 20 in fan made in USA?
              by|Jun 25, 2022
              1 Answer
              Answer This Question

              A:  Lasco is an American company in Philadelphia, Pennsylvania 

              by|Sep 15, 2022
                1 found this answer helpful
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                Q:can a 3 yr old put her fingers through grate
                by|Dec 13, 2021
                0 Answer
                Answer This Question
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                Q:Will the Lasko 3733 box fan laying on its side in an attic hatch hole? (Obviously it would be secured in a frame)
                by|Nov 12, 2021
                0 Answer
                Answer This Question
                Showing 1-4 of 59
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                Customer Reviews

                4.1 out of 5
                (1,532)
                • 4.1
                  out of 1,532 reviews
                • 84%recommend this product
                Filter by:
                Showing 1-10 of 1,532 reviews
                Low RPMs/CFM but thy get the job done.
                Needed 4 fans in order to move air for a project and found these little bad boys. Was. Little disappointed because it wasnt able to give me the full needed BTUs Inrequired but in a pintch it definitely succeded. Would recommend.
                by
                  • Recommended
                  I had an old unit same brand and it looks like same model but the new one has less air flow in ea...
                  I had an old unit same brand and it looks like same model but the new one has less air flow in each of the 3 speeds and it is in comparison a little thinner.
                  by
                  • Verified Purchase
                  3 found this review helpful
                  This fan was ready to use right out the box. Works great. A bit loud though.
                  This fan was ready to use right out the box. Works great. A bit loud though.
                  by
                  • Verified Purchase
                  • Recommended
                  1 found this review helpful
                  Good air movement, but blades warped and got brittle over time
                  I bought one of these in summer 2015 and it worked without bugs for 4 years, at which time one of the blades warped and hit the rear frame, making a clicking noise at startup until centrifugal force straightened it out. That was OK for awhile, but by the next summer (2020) the plastic was very brittle and the blades snapped almost like potato chips when touched. Bad batch of plastic or typical? I'll probably just buy a new blade to not waste a working motor. I recommend it because it didn't cost much and the sound isn't unpleasant.
                  by
                    • Recommended
                    2 found this review helpful
                    Fragile
                    I noticed one blade cracked and broken within 30 days. The only possible trigger I could think of was it fell down to carpet floor once.
                    by
                      2 found this review helpful
                      Quick to install and reasonably quiet. We installed 10 of these in our barn. The stalls are 12'...
                      Quick to install and reasonably quiet. We installed 10 of these in our barn. The stalls are 12'x24' and they move the air great. There's a "hum" when they are running, but it's not near what I had expected when they are all turned on.
                      by
                      • Verified Purchase
                      • Recommended
                      5 found this review helpful
                      Blows over backwards when on high speed
                      I cannot believe that this fan got so many good reviews. When I plugged it in and turned it to high, it immediately blew over backwards. I was able to fashion a rotating brace which I attached to the bottom after taking off the rear screen and drilling a hole, but don't feel that I should have had to do this. I will keep it as it will suffice for my needs and the price was right, but it was sure not designed very well.
                      by
                        7 found this review helpful
                        I like that it has, more than speed, three speeds, is excellent. The plastic feet, that keep it, ...
                        I like that it has, more than speed, three speeds, is excellent. The plastic feet, that keep it, from tipping over, is a very great, idea.
                        by
                        • Verified Purchase
                        • Recommended
                        The fan is definitely effective, but can be a bit loud at time depending upon the surface it's pl...
                        The fan is definitely effective, but can be a bit loud at time depending upon the surface it's placed on. On the floor I didn't notice much in the way of noise, but on a table it can be an issue. Overall a good fan if you're looking to save some money by not using your AC (or cooler) all the time.
                        by
                        • Verified Purchase
                        • Recommended
                        4 found this review helpful
                        While this fan does a good job of moving air, and is about as loud as you'd expect, it will not s...
                        While this fan does a good job of moving air, and is about as loud as you'd expect, it will not stay in place. I have hardwood floors which are from 1950 and so they aren't perfectly even or level, but are very smooth since we had them professionally re-done when we moved in. I installed the "slip-resistant" plastic feet (see attached photo) and they most certainly are not slip-resistant. They are hard, smooth plastic, and the fan has enough vibration on any setting that it just jitters all over the floor. At one point it found itself over against a wall, and start vibrating against that making noise. I temporarily stopped all this by placing some cheap adhesive weatherstripping to the feet (front and back), but after about an hour it must've made the unit off balance since it start wobbling on any speed. I remove the stripping but then it was back to sliding all over the floor again. All they need to do is put a coating of rubber on the front, thin plastic feet, and on the contact patch of the rear feet (for which I'd gladly pay an extra $5 on the price) and this fan wouldn't move on any surface. Also, the steel frame is so thin that if the fan is on a slightly uneven surface, it starts to wobble (the frame itself.) Even more so on higher speeds to the point where it seemed like it might tip itself over. If you have carpet, or plan to use a window to hold it in place on a sill, you'd probably be fine, and I'm sure it would work great for the price. However, DO NOT buy this if you intend to use it on a hard surface, or it won't stay still and may risk tipping over (which I've seen in other reviews can snap off the blades if it falls hard enough.) The materials all just seem super thin and cheap to save on cost, whereas box fans I remember using growing up (80's) were of thicker steel around the case, and heavier-duty.
                        by
                          2 found this review helpful
                          Showing 1-10 of 1,532 reviews

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                          Product Width (in.)4.38 in20 in20.88 in4.75 in
                          Fan diameter (in.)20 in20 in20 in20 in
                          Product Height (in.)20.5 in20 in22.5 in22.5 in
                          Fan FeaturesBuilt-In Carry Handle,Slip-Resistant FeetBuilt-In Carry Handle,Built-In Circuit Breaker,High Velocity,Slip-Resistant FeetBuilt-In Carry HandleGrounded
                          Number of Fan Speeds3 Speeds3 Speeds3 Speeds3 Speeds
                          Housing MaterialPlasticPlasticPlasticSteel
                          THD SO SKU1000975678
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