Features:

  • Designed to fit into most double hung and slider windows (Measures approximately 13.3" x 25.5" x 6")
  • Adjustable extender screen and bonus extender panel help to secure fan into larger windows (Can extend up to 37" with extenders)
  • Dual blade operation with idependent electronically reversible motors allows for air intake, exhaust, or air exchange for full room circulation
  • Plug in the power cord into a 120 AC Outlet. Refer to the PDF attached below in Technical Specification for User Manual.
  • Troubleshoot- if air does not seem to be blowing in properly adjust airflow directional switch to intake. Note-for slider windows set the fan vertically in your window opening with the left side of the fan situated on the bottom and the built-in extender panel on top. Aluminium lock
  • Dual blade operation with independent electronically reversible motors; Two speed settings
  • Water-resistant motors are safe to use during rainy weather; Designed to fit most double hung and slider windows
Exhaust or Intake, love it.

We do not have air conditioning, we live off grid. Wanted something that would suck in the cool night air to assist with our 'natural' air conditioning. This works very well, and does not use much energy. I love the fact that you can flip the switch and it will reverse the fans, so you can exhaust air, like when the husband burns the popcorn, or intake air, like we do at night.

low or a degree setting is great. Totally recommend

I have casement windows and this fit PERFECTLY in it! My old one by the same brand did not have the option for intake or exhaust so we would have to keep flipping the fan around which was a pain. This one is just what we were looking for! It has the option for exhaust/intake and to switch from high, low or a degree setting is great. Totally recommend!

I like it just fine

For the price, it's great. My room gets really humid and this fan will suck a lot of the hot air out of my room. I live in California on the second floor and it is significantly hotter in my room than in the hallway/outside. I haven't woken up from a nap drenched in sweat like I was before since I purchased this. Yes, I still need to use my Lasko tower fan and yes, I still sweat a little if I nap in the afternoon, but it makes a large difference. I am not waking up from being overly hot. If you want an alternative to using a portable AC/window AC unit, and you have a nice, cooling fan inside the room, this window fan will do that job well. I also chose this one (more expensive than the other model) because you can electronically change the direction. It also blows IN air really nicely when the air outside is cool (it feels like an AC). I didn't want to have to manually pick up my window fan and turn the thing around to reverse it. It's fantastic to me.

Great fan

This is a great fan for my purposes. I live in an apartment with a gas range/oven and no outside exhaust fan. I was tired of smelling gas and fish and other smelly foods 3 days later so I bought this fan to exhaust the smells out when I cook. It does a good job. The fan itself is great, but I am short, so the only downside to consider is where you are putting the fan and if you can still reach to open the window behind it. My only kitchen window is above the kitchen sink so I have to get a step ladder to reach across the sink to open the window behind the fan and then to close it again. The fan blocks some of the light coming in but not a big deal. As you can see in the picture, it takes up about half of the lower window. Yesterday it was breezy outside and I had the window open but the fan was not running, and the breeze had the blades turning as if it was on. This fan did not come with a remote, but for kitchen use only, I didn't feel that was a deal breaker. It does have a control switch for each side and can be both intake, both exhaust, or one intake and one exhaust which is a very nice feature. Other fans I looked at were not reversible without physically taking the fan out and turning it around. I have not tested out the temperature switches since I'm using it strictly for exhaust purposes. My apartment has central air, so other than exhaust, I probably will not use the fan. The fan is not extremely loud. In fact, when I walk into the next room, I can hardly hear it running. The pullout section is OK and given the size of the fan is sufficient, but if the fan were any stronger, it would need something stronger to keep it from falling over. For the price and functionality, it is a very good fan. Just take it out of the box, position it in the window, plug it in, and turn it on.

Works great

I bought this fan because I'm a smoker and since I own my own home I reserve the right to smoke in it. With that said nobody likes the smell of stale smoke this fan fit's perfectly in my window and runs almost unheard while circulating the air in my smoking room, it's also great for using the morning cool air to bring down the temperature resulting in a slower warmup on hot days. The reverse switch is a must if you don't want the hassle of pulling your fan out and putting it back in to reverse air flow. I have had other window fans in the past and non of them worked as well as this one.

Cool down the room nicely at night

Bought one of these for one bedroom (at Target) during a heat wave. Luckily we live in an area where it gets cooler at night. I set one of the fans to exhaust and one to intake, then once it was cooled down enough, switch both to intake for the night. After feeling how cool that bedroom was compared to the rest of our upstairs, I ordered 2 more from Amazon. They also work great, but strangely the power cords on these two are shorter by about 6 inches. Weird. If I didn’t have the original one with the longer cord to use in one room with outlets further from the window, it wouldn’t have worked out. Note: we don’t use the “thermostat” settings where it is supposed to turn on based on temperature. It’s not a super quiet fan, and the on/off cycling is disruptive during sleep.

Works well but not particularly powerful [Holmes HAWF2041]

I ordered 2 of these units, 1 for exhaust, 1 for intake, 1 for each of 2 windows on 2 different walls in a 10' x 12' foot bedroom. They are not particularly powerful so they will not suck the hot air out immediately, but with 1 unit exhausting the air and the other taking in the cool, a hot room shut up all day was comfortable in about 45 minutes - much more quickly than with just the windows open with no breeze, or a conventional floor fan just circulating hot air. Again, they are not particularly powerful and as a result they are not super noisy and on the low setting, I'd say quiet for a fan [there are 3 settings: hi, medium, lo, one knob for each fan also used for shutting the things off]. As you can see, the unit has 2 fans in it with small blades 8" across, fans can be set independently to either intake or exhaust - I'm no engineer, but it seemed to me that having the fans that close together in one unit means that if you set one to intake and the other to exhaust, a healthy amount of that benefit is just going to cancel itself out, thus, I bought 2 to try and create a cross breeze kind of thing, which I think works well. The 5' cord is well nigh useless in my situation. The 2 pronged plug is polarized. One of my windows is 34" wide, so I needed the fixed 5" width adapter panel to close in the space. The other is 29" and the built in accordion panel [up to 7"] that slides out of the side is enough. The 'thermostat' just slows the rate of blade rotation and has nothing to do with regulating temperature - it can't - it's a fan, not an air conditioner - there's just one of those controls for both fans - I just use it to turn the fan off instead of the twin hi/med/lo/off knobs. I had hoped to put the exhaust fan in the top portion of my double hung window, but the latch on my window and the non-symmetrical design of the unit prevent me from doing that. Light weight plastic construction - everything visible is plastic. I couldn't figure out the wattage on these [120VAC/60Hz/0.8A is all that's molded into the back of the plastic housing in tiny almost microscopic type]. There's definitely a back and a front and all the controls are on the front side - as is the electrical connection. Made by our Chinese trading partners. Being cheap, I bought these at a discount from the Amazon Warehouse with the full understanding that I could expect the box to be a shambles and there to be cosmetic damage to the unit; for sure the boxes didn't inspire a lot of confidence, but the units themselves seem fine and to work perfectly. Cannot comment on long-term durability. Would recommend.

I hate beeping appliances

When shopping for a window fan I set a budget of $100 or less. I wanted one that would last the longest and move the most air with the least noise possible. Long-lasting meant mechanical controls (not digital push buttons or remote controls) and air movement without noise meant the biggest blades possible. I shopped a lot and decided this was the one for me, and at a lot less than I expected to have to pay. I have the fan plugged into a Clapper outlet control (that's about 20 years old and works perfectly) so I can turn it on/off from bed if I want without a remote dying or getting lost or consuming expensive batteries. The Clapper Sound Activated On/Off Switch, 1 Each I've had this fan about a month now and I have no complaints. It makes as little fan/air noise as I think it reasonably can (and doesn't beep, I hate beeping appliances!) and moves as much air as I would expect for its size. It's weaker than a 20" box fan in terms of total airflow, but 2 x 8" fans = 16" and 16 < 20, so that makes sense. The thermostat works well. With a thermometer mounted on a nearby wall I've correlated thermostat knob position to approximate room temperature and it's entirely repeatable. The side extension adjustment has been mentioned negatively in other reviews but I had no issues with it. I measured my window, subtracted the fan + left-side extension's width, then extended the right-side as needed and locked that adjustment before inserting the fan into the window, then slid the left-side extension into place and set the whole assembly down and lowered the window on top of it. This fan has allowed me to not use my A/C so far this year when all my neighbors have theirs running daily...what more could I ask for? I have this set to exhaust in my bedroom window and two windows (all 3 the same size) open in the living room so air flows in from a shaded patio and it's perfect for me. I really feel this is the best window fan on the market that's <$100.

Excellent exhaust fan, lasts forever

I keep one of these fans set on exhaust 24/7, mostly on the low speed, all year and they last for years and years. I use it in my study window, so that I can have a smoke at my desk and not have to deal with the smell of it, which I can't stand in the house. I like the manual switches for exhaust vs. fan which are on the bottom of the front of the fan. For me there is no value in having a remote controlled reverse, and keeping the electronics to a minimum makes it less likely that any harm will come from occasionally giving this a showery scrub in the kitchen sink. FYI - this fan has gotten wet from rain and snow when they've been accompanied by wild winds like we get in nor'easters here in CT, and it hasn't skipped a beat.

Buying Two Was a Great Decision

I initially bought two of these units to create airflow across an enclosed porch. They performed admirably last year and cooled my porch by drawing cool air from the north side of the house with one unit placed on Intake function in a north window and pulling out warmer air with the matching unit placed in the south side window of the porch on Exhaust. Recently, we used them for a renovation project to pull dusty air out of a large room as we installed new sheetrock. The units clean easily and for the sheetrock dust use required only daily vacuuming to keep them functioning well. When the job was done we restored them to their original positions and purpose. Couldn't be happier with the product(s)!

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