Lasko 20" Weather-Shield Performance 3-Speed Box Fan, 2000 CFM, White, 3720
Lasko 20" Weather-Shield Performance 3-Speed Box Fan, 2000 CFM, White, 3720
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Lasko 20" Weather-Shield Performance 3-Speed Box Fan, 2000 CFM, White, 3720

4.3 stars out of 487 reviews
(4.3)|
487 ratings

Key item features

  • Features a 20-inch box fan design for powerful airflow in any room
  • Offers 3 refreshing speed settings to customize your cooling needs
  • Boasts Save-Smart energy efficiency, costing less than 2¢ per hour to operate
  • Equipped with a patented Weather Shield motor for worry-free window use
  • Includes a high-performance grille for ultimate airflow and cooling
  • Wider fan body structure provides greater stability and durability
  • Lightweight design with a convenient carry handle for easy portability
  • Equipped with Lasko's trusted, fused safety plug for added peace of mind
  • Use in conjunction with air conditioning to help circulate cool air throughout your space
  • Perfect for the bedroom, living room, home office, the garage and more
Current price is $41.99
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  • Free 90-day returns
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4.526041666666667 stars out of 5, based on 2112 seller reviews(4.5)
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Customer ratings & reviews

4.3 out of 5 stars
stars487 ratings287 reviews
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Reviews summary

Pros
  • : Has three speed settings for adjustable power.
  • : Fits stably in window for outdoor use.
  • : Has an attractive and sleek design.
  • : Offers good value at this cost.
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Showing 1-3 of 287 reviews

Jan 22, 2026
Stacy
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Excellent window fan

10/10 fan Very powerful It arrived pretty fast I recently purchased the window lasko window fan to help cool down my Bedroom/Living Room and overall, I'm very satisfied. It does its job I recommend it

Helpful?37D1A429U1HU9204066
Aug 24, 2022
Mel
5 out of 5 stars review

Verified Purchase

How to use a fan for a long life.

I have a theory, with logic and conclusion. First the observation: The makers of this fan made it so that when you turn it on, the first setting available is high, then medium, then low. The logic: Since we all know that getting a motor running requires more power than it does to just continue running, not allowing a full start up is hard on the motor. So if you quickly go to medium setting without letting the high setting run for a few seconds, you may in fact be shortening the life of the motor. The conclusion: If we want this fan to have maximum lifespan, we should, when starting up, allow a few seconds in High setting before going to Medium. And to take it one step further, we likewise should allow a few seconds in Medium before going into low. Perhaps this explains why some fans end up kinda slow, and others do not. Though admittedly theory, it is based on known startup demands of motors. At any rate, I am going to follow this procedure in the hopes my fan has a long life! So far so good.

Helpful?37D1A429U1HU9204066
Jul 11, 2010
Hawk8159
Walmart Associate
5 out of 5 stars review

very nice box fan

i rather use this box fan than the galaxy box fan. that fan shakes when running and makes more noise. where this one does not shake and it's not so noisy. 3 different speeds controlled by a nob at the top. puts out a lot of air but not as much as the Lasko 20 inch pivoting floor fan. all 3 fans are 20 inch floor fans. it's also energy efficient.

Helpful?37D1A429U1HU9204066

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