Costway 50/80/110 CFM Ceiling Mount Exhaust Ventilation Fan with Pick-A-Flow 4 Inches Duct

Absolutely love this booster fan. Easy to install, runs quietly, and does a great job of evenly cooling my room. The remote and digital display are super convenient. Highly recommend.

Love it. Great power, easy installation, and perfect for our shed. Great choice!

work from home for over 9 hours a day and I'm using this ventilation booster fan to improve airflow in my office and I'm very happy with the results. Installation was very easy and it fits perfectly into the existing floor vents. There's very little noise, basically a low hum that quickly fades into the background. I especially appreciate the built-in thermostat and adjustable fan speed, which allows me to adjust the airflow based on the season and comfort level. The air deflector is now working properly as well. I haven't had it for long but this device has really made a difference.

I'm very happy with my purchase of the 4x10 Booster Fan. It fits perfectly on my vents and has significantly increased airflow for both cooling and heating. The smart controls are great - I love being able to adjust the 10 speeds and temperature with the remote. The built-in thermostat works great, and the fan is surprisingly quiet even at higher speeds. It feels solid, well made, and was a breeze to install. It really improved comfort in a room that was previously difficult to adjust. Highly recommended!

can carry it with me, which is really helpful when my air conditioner is not working well sometimes. I didn't expect it to be a heater in winter. It's really small and practical

It works great as an exhaust fan in my chicken coop. It pulls a lot of air and can be set to turn on and off based on temperature so I don't have to worry about turning it on and off.

This fan is amazing for low airflow. My kitchen vent was last on the list and this fan helped. It installed perfectly and looks beautiful. The airflow is way beyond its size. If you need more airflow or just want to increase the airflow you already have, this fan is the one for you. It comes with everything you need for installation. I received my package the same day, what a surprise!!

My upstairs bedroom is always 4-5 degrees warmer than the first floor (where I have the thermostat). When I turn the temperature up or down, the bedroom gets comfortable, but the living room gets very hot or very cold (depending on if the heat or air conditioning is on). I've been using this in my bedroom for the past few days and it has helped reduce the temperature difference to almost 2 degrees. It's easy to use and the included remote is a bonus. I used the auto mode and it wasn't hard to set up. The only thing I wish they would improve on is offering color options.

This register is very quiet, which is perfect if you have a bad air conditioner vent. You can also use it in other places, put it on your nightstand, and have extra airflow while you sleep. It's easy to use, comes with a remote control, and is affordable, so you can't go wrong with a little more airflow.

My mom has been having issues with her air conditioner lately and this little device is awesome! We just installed it in her bedroom and she couldn't be happier with how quickly it cools down. She almost wants to take a nap in the cool air, haha. The fan is powerful and the sound level is just the right amount, like white noise. We're also happy to use it in the winter as it pushes more warm air into the room. All in all, if your AC system needs a boost, this is definitely a great choice!

Bought this to regulate the temperature in my bedroom. Works great and not as noisy as other boosters! Good size and the fan does exactly what I need.

I am very happy with this product so far. I installed it in a bedroom and for some reason it gets much hotter than other rooms in the house. The effect was almost immediate. Hopefully it will last.

This air conditioner vent is such a power saver!!! I put it in my room and this little thing can cool the whole room down, the fan speed is also very fast, and I like that it makes no noise when it is on, and it is very easy to use, good quality, and has a low brightness if you don't like it too bright!!!

I recently purchased an AC vent fan and accidentally ordered the wrong size. The customer service team was very helpful and quickly helped me find the right vent size. Once installed, the fans have been running smoothly for about a month now. They work exactly as described and have enhanced the airflow in the AC vents and noticeably reduced the humidity in the room. The installation process was very easy and the product is very well made. Since installing these vent fans, the comfort level has improved significantly, especially in rooms that were previously difficult to keep cool. Overall, I am very happy with both the product and the customer service.

This booster fan came in a very nice package. It has a lot of useful features like 10 speeds, a timer, and a thermostat for cooling and heating. We turned on the AC tonight and my son in his room (where we installed this AC) said it cooled down noticeably faster than usual. That bedroom is farthest from the AC unit and is usually hard to cool down. This AC comes with two small fans and is not very noisy.

Super easy to install and run. The controls were a little confusing at first so be sure to read the instructions carefully. Can already feel better air flow in this bedroom. Upstairs bedroom faces the sun most of the time. Noticeably hotter most of the time in the warmer months. Much cooler in the winter. Hopefully this will help deliver more forced air and heat. Looks great and the price is right. Needs an update as the seasons change.

I have a circulating fan in my office because the air coming into this particular room of the house isn't very strong, and despite having a few windows, it doesn't help much unless the temperature outside is right. I didn't even know these existed, but that's exactly what this room has needed! Instead of just blowing the same air into the room, I'm pulling more air in from the vent. I'm sure I've lowered the CO2 levels in this room, and the air is fresher because of the assisted circulation. The power supply is a little awkward because this vent is on a protruding part of the ceiling, but it comes with a long enough power cord that I was able to stick it in the ceiling and wrap it around the wall. I already have LED lights lined up in the same space, so it works fine, but I'm sure this is designed for a floor vent.

Well made, easy to install, works as advertised and is as quiet as the product specs suggest. A great balance of price, quality and performance. A great choice for trouble free operation, hope it lasts a long time...

have a storage shed and the temperature in the shed can get over 105 degrees Fahrenheit in the summer. This is inconvenient for a lot of the items I store in the shed. So I bought a fan with a thermostat so that when the temperature reaches 90 degrees Fahrenheit, the fan will turn on and cool the shed down. I then added a vent at the other end of the shed to let the air in. This fan and thermostat combo does exactly what I need. It should also be great for attics.

The upstairs of my house is too hot all summer. The room is large, and one vent would require at least 12 ducts 15 feet long to heat it. I was planning to cut the ductwork out and install an inline duct fan in the attic, either with an expensive pressure switch or relay wired to the thermostat. But this vent regulator booster is much easier and less expensive to install - and it works great! Plugging it in was the only tricky part, but I plugged it in in the attic so that the wires were out of sight. I removed the old vent regulator and used a wire fishing pole to poke around the edges until I found a gap that I could get the pole into the attic. Then I climbed up into the attic and plugged it into an outlet above, taping one end of the wire to the fishing pole so I could pull it back into the room. The vent regulator booster is connected to a short 6-inch wire, and the rest of the wires are connected to that wire. It's obviously heavier than a normal vent regulator, so it was a little difficult to install, as I had to use both hands to lift the regulator up and connect the wires, then reach for the screws and screwdriver to hold it in place without letting anything loose. The thermostat measures the air in the ducts so that you can set it to a temperature that's below normal room temperature but above what the vents read when the A/C is on, and it will only turn on the fan when cold air starts moving through. My A/C started with a duct temp reading of 68oF, but I checked again a little later and it was reading 66oF, so I guess it was moving the cold air through the ducts faster instead of letting it warm up in the long duct in the attic. I still need to replace my A/C system, but I can say that this room is noticeably more comfortable after installing this inexpensive solution first.