Lasko 20 Inch 3-Speed Energy Efficient Box Fan for Home, Bedroom, Office, Living Room, White, 3723

Lasko makes a sturdy fan that moves a lot of air, but beware if noise is an issue. I ordered this fan August 29 2010, Since it arrived it has been running at low speed during the day when I am awake and high speed when I sleep at night. Thats almost 5 years of non stop use and this fan still works as well as the day I received it. If you want power, this fan has it in spades, the high setting really puts out some air, and while I'm not sure of exact numbers I know that it can make a tent out of my fairly heavy blankets. The fan is not a quiet one although the low setting is perfectly comfortable for me to sit in front of all day. When you crank this baby up to high though it gets really loud, for someone like me who needs white noise to sleep during the day this is a plus, but it could be a deal breaker for some. The overall construction is very sturdy, but there are a few weak points. The fan comes with little plastic stablizing legs that fit into the back and keep the fan level if you use it anywhere that isn't a window, these pieces work well but they do come loose or break rather easily so be mindful of that. Also the carry handle for the fan isn't the strongest, mine broke off two years ago, but thats still almost 3 years of fairly heavy use, so I can't really complain. As for the most important parts the motor, blades, guards and power knob are all still fully intact nearly 5 years later! Lasko really makes a quality product with this fan, if you don't mind noise you won't be disappointed.

As summer approaches I decided to get another fan to help keep cool. So far this fan seems like a good fan for the money. Obviously, it's very basic and has no bells or whistles, just low, medium, and high speeds. What it does do is move a decent amount of air just like a good fan should. When it's on low it's actually very quite, while on med and high settings it does make a bit of noise. Of course, if you like some white noise in the background (like I do when I sleep) then this shouldn't be a problem. It comes with two plastic feet that you can slide on the back to help give it a bit of stability. Without the feet it's about 4.5 inches wide. The feet add another 2.5 inches when installed. I actually have taken the feet off and sit it in the window sill to pull cool air in during the evening and cool down the house. It sits just fine on the window and doesn't get unstable even without the feet (though of course it is also leaning a bit against the window). Overall, I think for the money this is a good fan and would recommend it if you just need a basic fan to move some air.

Had the item a couple a weeks and it's already failed. After just a few minutes of use now the motor produces a horrible burning plastic/electrical smell that fills the room and makes the unit unusable. Given that we've already thrown the box away and it would be a hassle to repack this thing for a return we decided to just write this off as a loss. Caveat emptor, folks. You do get what you pay for. Update: Amazon kindly agreed to replace the fan without our having to return the defective unit, for which we had no box, and we were sent a replacement. Unfortunately, the new fan has the exact same problem! This time , though, it takes a bit longer to stink up the room: after an hour or so of use it begins to generate a rancid odor that is none too subtle and unacceptable. Not sure why we are having such lousy luck with these things (a bad production batch??) since others seem to be pleased, but we are 100% done with Lasko products.

I purchased this fan to use in our office's meeting space for our Friday get-togethers. It is very basic, with only a dial that turns the unit on and allows you to set it to different speeds. The only setup involves unsnapping the two plastic feet from one another and placing them in the slots on the bottom of the fan. This fan might be considered noisy by some, but for someone who's always lived near busy city streets I think it's relatively quiet. The price is not bad, but I'm pretty sure I purchased this same item for $15 at Walgreens a couple years ago, which seems a more appropriate price for the quality of plastic. The plastic seems a little flimsy but with such a simple construction these fans last forever. I would purchase one of these again and would recommend it to a friend.

This is a nice basic box fan with three speeds. It has a slimmer line than I expected, so it doesn't take up much room. It's lightweight and easy to move as needed. Just be sure to follow the directions about attaching the two little plastic feet to the back/base of the fan so it won't tip over. Other than that, no assembly required. It's ready to plug in right out of the box. It works great for moving the air and cooling a room down. Some people like the pivoting fans, but if you're looking for something affordable, this is still a good option. It's a little loud on speeds 2 and 3, but not much more so than a similar (higher priced) fan I had. Setting 1 is the speed I use the most anyway. The fan does help block out other noise in your house or from outside if that's an issue. Overall, I feel it's a fair price for a simple but effective box fan.

Review for: Lasko 3723 20" Box Fan How on earth do you choose a box fan? Well really they mostly choose us don't they, we choose the first box we see. The product descriptions aren't much help, they mostly all say they are quiet, powerful, low cost to operate, etc. Are they really all that different from each other? When looking for a replacement fan I found 2 of our fans were recalled in 2005 for fire hazard, so now I am replacing 3 fans. I guess in-plug mini-fuses became universal for a reason. Let's get started... The 20" box fans we'll compare are: A - Aerospeed BX100 B - Holmes HBF2002A C - Kenmore 32002 D - Lasko 3720 E - Lasko 3721 F - Lasko 3723 G - Lasko 3733 H - Lasko B20201 DESIGN AND DETAILS: --------------------- All have white fans and grills, gray enclosures, 245-260 square inch areas the blades pass through, and 70"-73" cords. A - Aerospeed BX100 - Wavy grill (BX200/BX400 have other grills). - Fan speed dial is on TOP. - Little smaller enclosure (you wouldn't notice unless side-by-side), though the blades pass through an area near to the highest square inches of the bunch. - The in-plug mini-fuse is easily replaceable if it blows. B - Holmes HBF2002A (Target) - Simple grid grill, blades have circle connecting them. - Fan speed dial and plug connection are on the MIDDLE OF THE BACK. This is not ideal if bringing air into the house from a window and not an attractive option when exhausting out. - The in-plug mini-fuse is easily replaceable if it blows. - Looks exactly like the Kenmore 32002. - NEGATIVE: At top speed it vibrates like crazy, enough to move itself. C - Kenmore 32002 (Sears/Kmart) - Simple grid grill, blades have circle connecting them. - Fan speed dial and plug connection are on the MIDDLE OF THE BACK. This is not ideal if bringing air into the house from a window and not an attractive option when exhausting out. - The in-plug mini-fuse is easily replaceable if it blows. - Looks exactly like Holmes HBF2002A. D - Lasko 3720 - Circular grill, blue logo on the front, blue speed dial. - Fan speed dial is on TOP. - Lasko promotes this as their fan of choice to PUT IN A WINDOW because it is more RAIN RESISTANT (not weatherproof). - All Lasko in-plug mini-fuses are not replaceable. - This is a wider (4 3/4") and thus fairly STABLE fan enclosure compared to some of their models. - Should be mostly the same as 3721, except this has the blue logo. E - Lasko 3721 - Circular grill, blue speed dial. - Fan speed dial is on TOP. - Lasko promotes this as their fan of choice to PUT IN A WINDOW because it is more RAIN RESISTANT (not weatherproof). - All Lasko in-plug mini-fuses are not replaceable. - This is a wider (4 3/4") and thus fairly STABLE fan enclosure compared to some of their models. - Should be mostly the same as 3720, except no blue logo. F - Lasko 3723 - Circular grill, blue speed dial. - Fan speed dial is on TOP. - Although it physically LOOKS LIKE one, this is NOT one of the rain resistant ones like the 3270/3721 (larger size, blue dial, etc.). - All Lasko in-plug mini-fuses are not replaceable. - This is a wider (4 3/4") and thus fairly STABLE fan enclosure compared to some of their models. - LOOKS just like the 3721, larger enclosure and no blue logo. But again not a rain resistant model. - NEGATIVE: Rattles a little at all speeds G - Lasko 3733 - Simple grid grill. - Fan speed dial is on TOP. - All Lasko in-plug mini-fuses are not replaceable. - NEGATIVE: Shakes a lot at settings 2&3. - NEGATIVE: Listeners thought the hum tone was more annoying than the others. H - Lasko B20201 - Simple grid grill. - Fan speed dial is on TOP. - All Lasko in-plug mini-fuses are not replaceable. - NEGATIVE: LOUD at highest setting, listeners thought annoyingly so. - NEGATIVE: Little more of an airplane hum/whine sound. "(yelling over a fan) THEY SAY THEY ARE ALL QUIET!" aka NOISE: ----------- First some things that may help you get more out of this section on noise.. - It takes +10dBA to be perceived as a doubling in LOUDNESS. - It takes just under +6dBA (5.85dBA) to be perceived as 50% (half-again) LOUDER. - It takes just over +3dBA (3.22dBA) to be perceived as 25% (quarter-again) LOUDER. (Note: When you read that +3dBA roughly doubles "sound pressure" that's different than perceived loudness) Most sounds 50dbA on up have more of a potential to annoy, for example when while trying to talk, and especially starting at 55dbA (highly subjective, but gives you an idea). Okay, now onto the comparison.. SUBJECTIVELY listeners liked the WHOOSH of air sound much more than that of the HUM of a rotating object. I noted next to the fan descriptions above which ones listeners felt had a sound they didn't like as much, regardless of loudness. (A) Setting.....2' away.....5' away....10' away 1.............48dBA.......45dBA.......43dBA 2.............55dBA.......52dBA.......49dBA 3.............64dBA.......60dBA.......57dBA (B) Setting.....2' away.....5' away....10' away 1.............59dBA.......55dBA.......52dBA 2.............63dBA.......60dBA.......57dBA 3.............66dBA.......63dBA.......60dBA (C) Setting.....2' away.....5' away....10' away 1.............58dBA.......54dBA.......51dBA 2.............62dBA.......60dBA.......56dBA 3.............66dBA.......63dBA.......60dBA (D) Setting.....2' away.....5' away....10' away 1.............55dBA.......51dBA.......48dBA 2.............62dBA.......58dBA.......55dBA 3.............66dBA.......63dBA.......60dBA (E) Setting.....2' away.....5' away....10' away 1.............55dBA.......51dBA.......48dBA 2.............62dBA.......59dBA.......56dBA 3.............68dBA.......65dBA.......62dBA (F) Setting.....2' away.....5' away....10' away 1.............56dBA.......51dBA.......49dBA 2.............62dBA.......58dBA.......56dBA 3.............67dBA.......63dBA.......61dBA (G) Setting.....2' away.....5' away....10' away 1.............60dBA.......55dBA.......52dBA 2.............66dBA.......62dBA.......59dBA 3.............70dBA.......66dBA.......63dBA (H) Setting.....2' away.....5' away....10' away 1.............63dBA.......59dBA.......57dBA 2.............68dBA.......64dBA.......61dBA 3.............71dBA.......67dBA.......65dBA POWER USAGE: -------------- We see below that the difference in yearly electrical cost is fairly small, and of course much less than air conditioning. If a little additional on-going expense for a fan makes this much less costly alternative to air conditioning more palatable, then that's probably a good investment. However, being green is an important factor for some folks, so here below is a comparison in electricity usage I measured. (A) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............45W......$4.90 2.............55W......$5.90 3.............68W......$7.30 (B) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............52W......$5.60 2.............61W......$6.60 3.............70W......$7.60 (C) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............49W......$5.30 2.............60W......$6.50 3.............68W......$7.30 (D) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............74W......$8.10 2.............92W......$9.90 3............110W.....$11.90 (E) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............74W......$8.10 2.............95W.....$10.30 3............111W.....$12.00 (F) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............71W......$7.70 2.............90W......$9.70 3............105W.....$11.30 (G) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............58W......$6.30 2.............67W......$7.20 3.............84W......$9.10 (H) Setting.....Watts.....Annual Cost 12hrs/d 90d/yr 10cents/kWH 1.............60W......$6.50 2.............66W......$7.10 3.............83W......$9.00 AIR VELOCITY: -------------- The 5' and 10' were measured straight ahead from fans. The fan surface measurement was done roughly 1/2 way up the fan blades right against the grill. On fan surface air velocity half-way up a blade at one point is, of course, just a sample point, and air velocity at a distance can be greatly affected by the degree of focus/dispersal. Nevertheless, I hope this air velocity info helps us get a better sense for the differences between the fans. (A) Setting.....Fan_Surface.....5' away....10' away 1................5.7mph......2.3mph......1.6mph 2................7.1mph......3.1mph......2.1mph 3...............10.6mph......4.6mph......2.6mph (B) Setting.....Fan_Surface.....5' away....10' away 1................7.7mph......3.2mph......1.6mph 2................9.5mph......3.9mph......2.0mph 3...............11.2mph......4.2mph......2.1mph (C) Setting.....Fan_Surface.....5' away....10' away 1................7.7mph......3.6mph......2.1mph 2................9.8mph......4.6mph......2.6mph 3...............10.4mph......5.2mph......2.9mph (D) Setting.....Fan_Surface.....5' away....10' away 1................8.0mph......3.1mph......2.4mph 2...............10.6mph......4.6mph......2.7mph 3...............13.1mph......5.0mph......2.9mph (E) Setting.....Fan_Surface.....5' away....10' away 1................7.8mph......3.6mph......2.0mph 2...............10.5mph......4.5mph......2.6mph 3...............13.2mph......6.2mph......3.0mph (F) Setting.....Fan_Surface.....5' away....10' away 1................8.2mph......2.8mph......1.9mph 2...............10.6mph......4.1mph......2.6mph 3...............12.6mph......5.0mph......3.4mph (G) Setting.....Fan_Surface.....5' away....10' away 1................6.8mph......3.0mph......1.6mph 2................8.9mph......3.7mph......2.0mph 3...............10.9mph......4.6mph......3.5mph (H) Setting.....Fan_Surface.....5' away....10' away 1................9.4mph......2.9mph......2.3mph 2...............11.6mph......4.6mph......3.2mph 3...............13.3mph......4.9mph......3.9mph SELECTING A FAN: ------------------ I removed these fans for excessive shaking, rattling, noise, and/or hum/whine: (B)Holmes,(F)3723,(G)3733,(H)B20201. I then removed one fan for the center placement of dial and plug connection due to non-ideal position for window placement: (C)Kenmore. This leaves these to choose from: (A) Aerospeed BX100 (D) Lasko 3720 (E) Lasko 3721 Some other little Aerospeed BX100 (Fan A) comparative details: - Option of lowest air velocity and noise would be of interest if someone will be very near. - Replaceable in-plug fuse in case it blows, the Lasko ones aren't replaceable. - Classic all-white front if you prefer that (like 3721 but not like 3720 with its blue logo). - The option of a little quieter at the very low end of the loudness range. - Lower electricity usage. Lasko 3720 and 3721 (Fans D&E) for their part give the option of a little more air velocity at the very high end of the velocity range. The Lasko 3720 and 3721 also look a bit different than the Aerospeed BX100, so looks may be another deciding factor for you. Note that for any given loudness or air velocity they overlap in, these models have very similar sound/velocity profiles. That is, when comparing points where air velocities are roughly equal for the fans (at the same distances), the loudness difference is so small I can hardly tell which is louder and the numbers support that. So there it is, my favorite three and some ways to compare them. SUMMARY: ---------- In the end these are just classic 20" box fans which are more similar than they are different. Hopefully whichever you choose won't be a lemon and will work for many years. Perhaps somewhere above you'll find information you can use to choose the best fan to meet your needs. Whatever you get, if it rattles, shakes like crazy, makes an annoying hum, etc., try exchanging it for another, don't settle, there are less annoying fans out there and you'll be listening to them for many years to come. I hope this helps someone :). SHOPPING NOTE: ---------------- Millions of 20" box fans are sold in the U.S. every year. Review sites cannot get anywhere near a statistically valid user sample, so although we learn from comments about DEFECTS and EARLY FAILURE, I suggest not filtering out a model based entirely on them. There are also old reviews that have already been acted on by manufacturers to improve the product or fix a description, thus the review may no longer be accurate. That said, defect and early failure comments with details are great for FEEDBACK TO THE MANUFACTURER (or author) and to help us all much more quickly SPOT SIMILAR ISSUES and thus get an exchange while it is quick and easy to do. Again though, I wouldn't use them to filter out a model entirely.

I realized years ago that fans made in China are useless. Flimsy plastic blades at a slight angle that are useless. I started buying antique fans and having them rewired. Those made before 1970 are best. The blades are metal and are angled enough to move air rapidly. They have very powerful motors and last, literally, forever. This can be very costly, but at least I wasn't throwing money away. However, they didn't make large box fans and I needed one. I read in another review that this fan is American made and price was very low so I ordered one. I LOVE THIS FAN. Here's why. There's nothing flimsy about it. It has 3 speeds. The lowest speed is far more powerful and than most fans available today on their highest setting for twice the cost and it's quiet. Medium is good if you really want to cool things down in a hurry, it's louder, but you can hear the tv without cranking the volume. High can almost move furniture. It's loud, but if you need that setting, you must be using for an industrial purpose like to dry polyurethane or making a wind tunnel. I highly recommend this fan. One more thing, when I first opened the box and turned it on, on low, there was a slight "rattle". I then ran it for a few minutes on high speed and returned to the lower speed and the rattle was gone. I've used it daily for about 2 months and haven't heard a rattle or any other bad noise from it. If you do, I'd suggest "breaking it in" with a few minutes on high.

Many thanks to the other reviewers who provided so much information about fans! It made my choice to buy this fan a no-brainer and I'm very happy I did. I bought 2 of these fans to really move the air around our living room. At the time I'm writing this review, we are having triple digit weather so no way are we turning off the air. But at least we can turn the thermostat up higher to save money while still remaining comfy, with the fans going full blast to move around the warm air. When it's cooler, the fans work well in front of the doors to pull in the cooler outside air in the early morning and evening. With two fans going full blast on either side of the room, they ARE rather noisy and we have to yell over them if one person is out in the kitchen. But they work well! I paid a couple dollars more than a lot of the reviewers and the currently listed price is even more than that, almost double what they say they paid. It might be a seasonal thing, but you may want to watch to see if the price goes down. Update 10/27/2013: Still using this fan almost daily. Even if it's not hot out, it's great for those times in the kitchen when it gets a bit stuffy or steamy. Update 03/14/15: It was 95 today in early March. The fans are working as well as they were the day I bought them.

Power Plug on the bottom out of the way unlike others that have the cord coming out the middle . I use with 20 inch MER-13 air filter and the draw is fine even on lowest speed. have had it on 24/7 for a month now. I recommend.

It’s exactly what I was looking for: a box fan with multiple speed settings for which I’ll use to improve airflow in my apartment.

Perfect condition for first week of use. Quickly started to wobble and vibrate across the floor as the blade is not secured fully. Used on low speed for another week before the blade began to dislodge and strike the frame each rotation. Received money back due to deficient product.

Very good product

Works great with my carbon filter. I just use the natural air force to keep it on there and filtering. Easy DIY air filtration. Price is a bit high though as the same fan can be purchased at a department store for significantly less