Twin Window Fan with Reversible Airflow Control, 9 inch, Auto-Locking Expanders, 2 Speed Fan, Dual Fan, Exhaust, Airflow 9.84 ft/sec, Ideal for Home, Kitchen, Bedroom & Office, CZ319WT

Simple Window Fan That Moves Air Well and Gives You Flexible Ventilation I picked this up as a practical way to improve airflow in a room without spending a lot, and for that purpose it does the job well. This is the kind of fan that works best when you want to pull cooler air in, push stale air out, or just get air moving through a room that tends to feel stuffy or hot. What I like most is the reversible airflow setup. Being able to use it either as intake or exhaust makes it a lot more useful than a basic fan. That flexibility matters because the best setup can change depending on the room, the time of day, and the outside temperature. In one situation you may want to pull cooler evening air inside, and in another you may want to push warm air out. This fan makes that easy. The twin-fan design also helps it feel more effective than a small single fan. It moves a decent amount of air for its size, and it is especially useful in bedrooms, offices, kitchens, or other rooms where you want direct ventilation rather than whole-house cooling. I also like that it can be used in the window or set on a flat surface with the included feet, which gives it a little extra versatility. Installation is fairly straightforward, and the expandable side panels help it fit a range of window widths. Once in place, it gives you a simple, affordable way to improve ventilation without needing anything complicated. For everyday use, that convenience is a big plus. I’m currently using MERV 8 filter material on it as an added layer to help with dust and air quality, and so far it has been a useful setup. I do think that adding filter material is something to watch carefully, though, because any added resistance can affect airflow and possibly make the fan work harder. I’ll be keeping an eye on that over time to see whether it causes any noticeable drop in performance, added noise, or strain on the motor. Noise is the main thing to keep in mind. It is not unusually bad for this type of product, but it is definitely more of a functional airflow fan than a whisper-quiet background fan. It works well, but you should expect some fan noise, especially if you are using it in a bedroom or office where sound matters. Overall, this is a practical and versatile window fan that works well for improving ventilation and cooling a room in a simple, low-cost way. It is not fancy, but it is useful, flexible, and effective for what it is designed to do. Bottom line: A handy reversible window fan that does a good job moving air in or out of a room, and it has worked well for my setup so far, even with added filter material, though I’ll continue watching for any long-term airflow or motor issues.

Love the fan. Works really good. Easy use n worth the money

this is my 2nd window fan from the same maker (nothing wrong with my 1st window fan). after receiving it, i didn’t know it was only 2 speeds, as my previous was 3 - low, medium, high. the “low” speed on this one sounds like a medium speed and not a low. how so, it’s too loud (for me). on my previous, the low speed you can barely hear it and i can sleep the entire night with that on. this one, i know this will wake me up in the middle of the night (i’m a light sleeper). i tested out the auto-locking expanders and they worked pretty good. even vertically. however, i’m going to return it - this won’t work for me. the low speed needs to be quieter for me.

It works great! Does exactly what it's supposed to. The airflow and noise level are good!

This is a decent exhaust fan that performs well for reducing moisture levels (we monitor through temperature and humidity sensors) without significantly affecting indoor temperature, even with the imperfect seal (i.e. fanned pull out extensions on each side of the fan to cover gaps— a brilliantly adaptable design for multiple window widths). It can also function well for blowing cool air in. That being said, if this fan is used daily, it will probably last about a year with upkeep unless you are savvy with mechanics. This is my conclusion after owning about four of these. The reason for the downgrade in stars mostly has to do with this disposable quality. The company offers no support for repair, which is admittedly more common than not for items like this. But there is more. While they did efficiently honor one of our warranties, there was no room for context. They verified the receipt, identified that it fell within the one year time frame, and sent a new fan. However, they did not verify the model type (we initially purchased the three speed) and sent us the incorrect model (the two speed). While the price difference is small, our purchase decisions are well-reasoned. I emailed a couple of times with a week span between emails. I received a auto-verification that my email was received and no response despite their initial quick responding to the warranty request. It would seem that the company did not care to engage with the humans that purchased the fan or to attempt to resolve their error.

Installation so easy I didn’t even need any help and it is just enough air movement to cool my bedroom without turning on the AC at night. Perfect for Spring evenings in Kansas.

First off, let's be up front about this unit: Are you going to install it, and suddenly give your room strong, cool breezes that will let you imagine you're on the deck of some sailboat roaming the Caribbean? Uh, no. AAMOF, don't get this fan for drawing IN air. Get a cheaper big box fan, and put it in your window. That'll do you good! Why get this fan, then? Get it for the exhaust function, BUT only if you are gong to keep it running 24/7/365, to keep the target room free from musty, moldy, or otherwise, stinky smells. If you need quick exhaust for a target room, just flip that big box fan around, and keep it in the window. I was the landlord for my rent houses for about thirty-five years. I regularly installed these units and medium sized window AC units. The following tips can be used for either. First off, before you do anything else, plug your unit in, and check out the airflow. Does it seem wimpy to you? Send it back. You're never going to be happy with it. Are you good with the airflow? Great, read on..... Go out and get a pipe noodle, the foam tubes that are split down the center, and used for insulating pipes. I like the ½" ones. Get some flat foam sheets. ¼" will do. Get some white duct tape. Get a 4x4 piece of ½" sheet rock. Get some white, silicone caulk. Let's get down to business: The wings on this unit are garbage, just like the rest of them on other units. Forget them, for now. Keep them closed, unexpanded. Open your target window. Carefully pull open the pipe noodle, down its center, and run it the distance of the window width. Cut it the full width, including the part of the window that sits in the runner channels. The trick, here, is to carefully cut down the sides of the pipe noodle at either end so that only the bottom of it extends into the window runners, on both sides. Push the pipe noodle onto the bottom of the window so that one side is inside, the other outside. Push the tabs you created into the runner channels. Place your fan unit, exhaust side facing in, so that air is drawn OUT of your target room. Carefully close your window on the fan. See how it comes down, tightly, on the fan unit. Open the window, a little. Slowly open the wings. Expand them as far as they'll go. Don't worry if one side doesn't sock up to one side of the window frame. Close the window. Measure the spaces between the window frame and the unit Cut two pieces of sheet rock. Open the window. Lay the two sheet rock panels in, against the wings, on either side. They should sock up into the window runner space, and against the bottom of the pipe noodle. Close the window. You should not see the wings, now. Use your white duct tape to attach the sheet rock panels tightly to the fan on either side. Use the tape to attach the other side of the sheet rock panels to the window frame. Insect control: Put the screen onto the inside face of the fan unit, using the loops. Use your tape to close the hook holes on the inside face. To close the switch space, turn on the fan, and then cut a foam strip to tightly fit in the open switch area, closing it to the outside. Use the caulk if you want an even better seal. The last two exhaust fan units I installed, in the sun room of my own house, lasted eight years, each, with constant use. I'll see how long this unit lasts. Hope my tips help you. Best of luck to you!

The high setting is more like a low on any other fan I have owned. The low setting is a joke. Nicely made but not powerful enough. It is quiet because it does not move a lot of air.

Super recomendado, parece que tengo aire acondicionado,lo uso por las noches lo tengo empotrado en mi ventana y en menos de 15 minutos logra enfriar toda la habitación del aire fresco del exterior, lo que si recomiendo es dejar la puerta entre abierta para que se haga una burbuja/ambiente frio y se salga el aire caliente al resto de la casa. Si se deja la puerta totalmente cerrada produce mucho ruido por qué el aire no circula

Muy buen producto, enfría rápidamente el cuarto. Solo dos detalles, el ruido, el cual es comparable a otros ventiladores pero sería excelente que pudiesen bajarlo y la otra área de oportunidad, es que le faltan opciones para fijarse a la ventana (quizá Velcro) y eso ocasiona problemas con diferentes ventanas

Es buen producto..el único detalle es que no trae botón para invertir el aire...tienes que voltear el ventilador para que haga la función .es decir no lo puedes fijar permanente.porque si quieres invertir el flujo de aire..tienes que cambiar la posición del ventilador.

Me gustó que saca el aire caliente y ventila aire fresco. Debes ponerlo en la orilla de tu ventana para que saque el aire caliente. Muy buen producto se ve como muy simple pero Funciona bien. Lo recomiendo.

No tiene un gran flujo de aire. Yo lo queria usar como extractor. No puede ser usado en forma vertical, los accesorios de ambos lados se repliegan con la vibracion. No lo devolvi para validar la vida util.