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20-inch box fan with Save-Smart design costs less than 2-cents per hour to run Isolated Weather-Shield motor for worry-free window use High-performance grille for ultimate airflow Wider body for greater floor stability Easy to use control knob with 3 quiet speeds Lightweight design and convenient carry handle for portability Simple no-tools assembly Equipped with Lasko's trusted, fused safety plug ETL listed 2-year limited warranty Dimensions: 22.5" High x 21.25" Wide x 4.75" Deep Weight: 10 Pounds Color: Gray/White
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| Manufacturer | Lasko |
|---|---|
| Brand | Lasko |
| Item model number | 3720 |
| Color | White |
| Weight | 8.9 pounds |
| Height | 22.5 inches |
| Depth | 4.75 inches |
| Product Id | 522 |
|---|---|
| User Reviews and Ratings | 4.2 (412 ratings) 4.2 out of 5 stars |
| UPC | 046013418807 |
| # | Title | Reviews | User Ratings | Price |
|---|---|---|---|---|
| 1 |
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Lasko 20" Weather-Shield Performance Box Fan with 3 Speeds, 3720, White, 22.5" High, New
Reviews: 412
Ratings:
(412)
Price:
$48.97
on
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412 | (4.2) |
$48.97
on
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This little box fan puts out a lot of wind for the size of it. You need to make sure you attach the two included "feet" that braces it since on high it could easily blow itself over backwards. I like the fact that it's meant for indoor/outdoor use since it's so wet and humid in Florida in the summer.
I put one in my chicken coop to circulate air, liked it so much I put another in the other end so one is drawing outside air in and the other is pushing inside air out. Shocked out how long they're lasting in conditions of a dirty chicken coop.
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.
We have been very happy with our three 30 year old 20â box fans from Lasko, so when we needed a fan for our winter home in Southern California, we bought this Lasko Model 3720 Weather Shield Performance 20â box fan and are very happy with it. If anything, it is built as well and performs better than our old fans. It is a plus that it is assembled in the USA and sold by an American company. It fits perfectly in front of one of the openings in our bay window (see photo) and cools our place down quickly in the evening when we open a distant window to provide flow through ventilation. We are so satisfied with it, we are going to buy a second one for the window right next to it. Another plus is that we bought it for only $28.69 (with free shipping if you spend another $6.31, or for $5.99 for with shipping, if you donât) from Walmart.com. Amazon offers a very similar (same?) Model 3721 for $8.52 more at $37.21 (including shipping).
Nice fan. Happy with this purchase!
Seems like a quality item. Bought to use as a air filter. Attached a 20 x 20 x1 air filter to back and run 24 hours per day. Use in my bedroom so turn it on low speed at night. Even at low, noise seem somewhat excessive. Wish it wasn't quite so loud.
I bought this fan last minute due to mine suddenly breaking. I only use a fan because I have to have white noise when sleeping. It has a low, medium,
It's a decent fan and moves air, but fairly noisy and I don't think the wind ring and weather shield is worth the extra money. And, it had a slight vibration on high speed. I did not go through the hassle of returning it because the next one could be better or worse, instead, I was able to balance it by trial and error adding and moving a small weight until I found the "sweet spot".
Problems with Lasko Fan 1. It was a restocked item, as evident from marks on the fan from window placement. 2. It is defective in several ways: a. the front and back grills are not mounted square, but crooked (photo 1) b. because of this, the right rear foot does not line up with the groove (photo 2) This was probably a factory reject purchased at a steep discount, but then sold as if it were a new fan in good condition.
This Lasko fan was one of the most poorly designed and machined products I have ever bought. It arrived with such a dented, damaged underside that it was unusable. Since the box it arrived in was undamaged, I have to assume the damage happened at the factory and they packaged it anyway without quality control. Every box fan I've owned was braced by stands that extend beyond both sides of the fan. This model is braced on one side only--not a stable design. My item had sharp edges on rivets that were not smoothed during manufacture, and I cut a finger taking it out of the box. Lastly, important info about the product's electrical specifications on the bottom was obscured by paint that was applied at the factory, making it almost unreadable. I feel like I bought a box of garbage.
