Lasko 20" Cool Colors Classic Box Fan with Weather-Resistant Motor, Portable Cooling Floor or Window Fan, 3 Speeds, Purple, B20309
Lasko 20" Cool Colors Classic Box Fan with Weather-Resistant Motor, Portable Cooling Floor or Window Fan, 3 Speeds, Purple, B20309
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Lasko 20" Cool Colors Classic Box Fan with Weather-Resistant Motor, Portable Cooling Floor or Window Fan, 3 Speeds, Purple, B20309

55.4K ratings
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Key item features

  • Powerful Cooling: Moves up to 1,725 CFM of airflow, enhanced by Wind Ring technology for increased air velocity and improved whole-room circulation.
  • Versatile Placement: Features a weather-resistant motor for safe window use to bring in fresh air or exhaust stale air, and can also be used on floors or tabletops.
  • Customizable Airflow: Offers three energy-efficient speed settings, controlled by convenient top-mounted manual dial for easy adjustments.
  • Portable Design: Lightweight construction with an integrated carry handle allows for easy movement between rooms.
  • Durable Build: Constructed with a sturdy steel frame and rounded corners for reliable, long-lasting performance.
  • Enhanced Safety: Incorporates Lasko's Blue Plug safety technology, which automatically cuts power upon detecting an electrical fault.
Generated by AI

Specs

Electric household fan type, Box FanMount type, Free StandingSpeeds, 3Power type, Corded ElectricMaximum air volume, 1725 CFMAdjustable height, N

About this item

Product details

Add powerful airflow and a pop of style to your space with the Lasko Cool Colors 20" Box Fan. Designed for reliable everyday cooling, this high-performance box fan delivers up to 1,725 CFM of airflow to help circulate air quickly and efficiently throughout bedrooms, living rooms, dorms, kitchens, and home offices. Featuring Lasko’s advanced Wind Ring technology, this fan increases air velocity for stronger airflow and improved air circulation compared to standard box fans. The weather-resistant motor allows for safe window use, giving you the flexibility to bring in fresh outdoor air or exhaust hot, stale air to improve indoor comfort. Customize your cooling with three energy-efficient fan speeds using the easy-access top-mounted controls. The lightweight, portable design with a built-in carry handle makes it simple to move the fan wherever it’s needed most, whether on the floor, in a window, or on a tabletop. Built with a durable steel frame for long-lasting performance, this stylish box fan combines dependable cooling power with modern color options that complement bedrooms, dorm rooms, apartments, and living spaces. Ideal for U.S. homes, apartments, and dorm rooms—especially in warm or humid climates—this portable box fan helps improve airflow, boost AC performance, and keep your space feeling cooler and more comfortable. For added peace of mind, Lasko’s trusted Blue Plug safety technology automatically cuts power if a potential electrical issue is detected, helping keep your home safe while you stay cool.
  • Designed for Hot Weather Cooling: Move up to 1,725 CFM of airflow to help beat the heat in warm or humid conditions.
  • Wind Ring Technology for Faster Air Movement: Advanced Wind Ring grill design increases air velocity for stronger airflow and improved whole-room air circulation compared to standard box fans.
  • Ideal Window Fan for Fresh Air Circulation: Weather-resistant motor allows safe window use to pull in fresh outdoor air or exhaust hot, stale air from your home.
  • 3 Custom Cooling Speeds for Everyday Comfort: Choose from 3 energy-efficient speed settings to create the right airflow for sleeping, relaxing, working, or cooling down on hot days.
  • Lightweight & Portable Design: Integrated carry handle and lightweight design make it easy to move this portable box fan from room to room.
  • Simple Top-Mounted Manual Controls Convenient top-mounted dial controls allow quick and easy speed adjustments without bending or reaching.
  • Durable Steel Construction for Long-Lasting Use: Built with a sturdy steel frame and rounded corners for reliable, everyday cooling performance season after season.
  • Versatile Cooling for Any Room: Use on floors, tabletops, or windows to improve airflow in bedrooms, apartments, dorm rooms, offices, garages, and living spaces.
  • Helps Improve AC Efficiency: Circulate cool air more effectively and reduce hot spots by using this fan alongside your air conditioner.
  • Trusted Blue Plug Safety Technology: Lasko's safety fuse technology automatically cuts power if an electrical fault is detected for added peace of mind.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Electric household fan type

Box Fan

Mount type

Free Standing

Speeds

3

Power type

Corded Electric

Warranty

Warnings

Customer ratings & reviews

4.5 out of 5 stars
stars
55.4K ratings14.6K reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars78% (43.2K)
  2. 4 stars9% (5,044)
  3. 3 stars4% (2,278)
  4. 2 stars2% (1,179)
  5. 1 star7% (3,716)

Reviews summary

Pros

  • : The fan delivers strong airflow and required features for its cost.
  • : The fan includes multiple bright hues that match room decor.
  • : The fan produces strong airflow that lowers room temperature.

Neutral

  • : Unit is quiet on low but loud with rattles and clicks on high.
Generated by AI
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Showing 1-3 of 14,644 reviews

Sep 17, 2026
Reviewer name: Caroline
Top Reviewer
Item details
Color: White
Multipack quantity: 1
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-994bb3097ad742388501
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! 

Jul 24, 2026
Reviewer name: Tonya
Top Reviewer
Item details
Color: Blue
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Adequate, Good for Price

A bit challenging getting the "feet" on, but as soon as they were, this works great. Overall, easy enough to get running. I purchased during the recent smog assault over NE Ohio to try to circulate air. It's not quiet on slowest setting. But for the price, this offers great air flow, it's sturdy, and lightweight to carry or relocate

Helpful?504e9d40-bb16-11f1-819d-994bb3097ad742388501
reply from Lasko Product Expert

Thank you for your detailed feedback! We're glad to hear that once assembled, the fan performed well and provided the strong airflow you were looking for. We appreciate your comments about the assembly process and noise level on the lowest setting, as customer insights like yours help us continue to improve. It's great to know you found the fan sturdy, lightweight, and easy to move around, especially when you needed extra air circulation. Thank you for choosing our product and for sharing your experience!

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-994bb3097ad742388501
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!

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