4in Black Bathroom Exhaust Fan for Window, 55CFM IPX4 ABS Plug-in Extractor Fan Attic Fan w/Anti-Backflow Damper for Toilet, Office, Kitchen, Garage (US Cord)

already good works more than 6 month. thank you.

very nice and quiet. CFM is way over rated but..it does suck enough air to vacate your pooop smell

Works great in my chicken coup but the spring broke that keeps the Louvers closed.

Good fan but a little bit noisy.

I used this with a 4" exhaust tube out the wall of my bathroom Pull chain works great and it just plugs in...

It's been running continuously for several weeks without issue. Seems well built. Time will tell how durable it is.

I have an old, little house that is currently unoccupied and that will be unoccupied for at least two more years. I need the house and its contents to not mildew. I bought a dehumidifier to control the moisture in that old house, but I needed a way to circulate the air. I bought a set of these. I then cut little (repairable) holes through specific walls, and then installed these fans in a way that made the air circle inside of the house. They are nice and quiet and move enough air to really help. The power cord is nice and long, but it if a person wanted to, he/she could use the screws inside the fan's case to change the cord.

Awesome for the price. Quality seems good and has back flow valve.