Lasko 20" 3-Speed Weather-Resistant Motor Box Fan B20200
Lasko 20" 3-Speed Weather-Resistant Motor Box Fan B20200
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Lasko 20" 3-Speed Weather-Resistant Motor Box Fan B20200

|53.8K ratings
Lasko 20" 3-Speed Weather-Resistant Motor Box Fan B20200Lasko 20 Classic Box Fan with Weather Resistant Motor 3 Speeds 22 5 H White B20200 NewLasko 20 Cool Colors 3 Speed Box Fan with Weather Resistant Motor Blue 22 5 High B20310 NewLasko Cool Colors 20 3 Speed Weather Resistant Box Fan Black B20301 New
Actual ColorWhite
Pack SizeSingle

Key item features

  • Powerful Air Circulation: This 20-inch Lasko box fan moves up to 1,710 CFM, rapidly circulating air through bedrooms, kitchens, and home offices.
  • Weather-Resistant Design: A weather-resistant motor allows safe window placement to pull in fresh outdoor air or exhaust stale indoor air.
  • Custom Cooling Speeds: Choose from 3 energy-efficient speeds to create comfortable airflow for sleeping, working, or daily cooling requirements.
  • Enhanced AC Efficiency: Use this fan with an air conditioner to circulate cool air faster, effectively easing hot spots in the room.
  • Effortless Portability & Control: A built-in carry handle simplifies moving this lightweight fan, complemented by top-mounted controls for quick speed adjustments.
  • Integrated Safety Plug: Features Blue Plug fused safety technology, which automatically cuts power if an electrical fault is detected, ensuring operational safety.
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Customer ratings & reviews

4.5 out of 5 stars
stars
53.8K ratings14.4K reviews
How item rating is calculated
  1. 5 stars78% (42K)
  2. 4 stars9% (4,868)
  3. 3 stars4% (2,190)
  4. 2 stars2% (1,148)
  5. 1 star7% (3,650)
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Showing 1-3 of 14,475 reviews

Sep 17, 2026
Reviewer name: Caroline
Top Reviewer
Item details
Color: Blue
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Quality is Unmatched

We sleep with this fan on all night and have for years. It has not once given us problems. I'm clumsy, and knock it over often, but you could never tell based on how it looks and operates. Great for cooling rooms and fits in the window to push fresh air through. We own one for every room.

Helpful?504e9d40-bb16-11f1-819d-994bb3097ad742388499
reply from Lasko Product Expert

Thank you for your wonderful feedback! We're delighted to hear that you've relied on this fan night after night for years without any issues. It's especially great to know that it has remained durable and dependable, even after being accidentally knocked over from time to time. We're honored that you trust our fans enough to have one in every room. Thank you for your continued support and for sharing your experience with us! 

Sep 7, 2026
Reviewer name: Nikki
Item details
Color: Black
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great airflow and dependable build

This fan moves a lot of air and keeps the space comfortable. The 3 speeds are useful, and the weather‑resistant motor makes it feel sturdy for everyday use. Lightweight, easy to place, and runs smoothly. Pros: Good airflow, simple controls, solid build Cons: A bit loud on high Bottom line: A reliable box fan that cools effectively and works exactly as expected.

Helpful?504e9d40-bb16-11f1-819d-994bb3097ad742388499
reply from Lasko Product Expert

Thank you for your feedback! We're delighted to hear that the fan provides strong airflow and helps keep your space comfortable. It's great to know that you're enjoying the three-speed settings, lightweight design, and the convenience of the simple controls.We also appreciate your comments about the weather-resistant motor and solid construction. While we're sorry to hear that it's a bit loud on the highest setting, we're pleased that overall, it has proven to be a reliable fan that works as expected.Thank you for taking the time to share your detailed experience and for choosing Lasko Products!

Sep 12, 2026
Reviewer name: nikki
Top Reviewer
Item details
Color: Black
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Beautiful black fans!!

Handsome fans, great air circulation, low noise!! I have these in my garage windows, to make the garage cooler and more work and play friendly. The black color blends in well. Thanks for making these in non traditional colors!!

Helpful?504e9d40-bb16-11f1-819d-994bb3097ad742388499
reply from Lasko Product Expert

Thank you so much for the wonderful review! We’re thrilled to hear that you’re enjoying the great air circulation and low noise, and that the fans are helping make your garage more comfortable for work and play. We’re also glad you love the black color and our non-traditional color options! We truly appreciate your support and choosing Lasko. 

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