Nalle 4 Inch Inline Duct Fan Radon Fan 50W 280 CFM Ventilation Exhaust Blower Fans Efficient Quiet Copper Motor for Ducting Vents Bathroom Kitchen Grow Tents Hydroponics

These are a great option to a standard bathroom vent. Strong and quiet they provide relief from the humidity created when showering.

Well made.

Seems to work pretty good at the rated flow rate when compared to other brands of the same size.

It quit working shortly after the return window closed. How convienitent!

I use this as an exhaust fan for my bathroom and it's better than what you get from home Depot or Lowe's

This will move a lot of air. It is super quiet and looks built to last.

I have a restroom fan but needed to run a 4" duct about 20 ft in length to help me pull the air out to a much farther location out of the house. This in addition to the restroom fan did the trick. I wired my restroom fan to a new outlet and plug this in. Once I turn on the restroom fan, this will turn on at the same time. So, they work together to draw out the air from my restroom. Keep in mind, there is no control on this as it is plug and play. Once you plug it in, it turns on right away. Noise wasn't that noticeable either. It seem well made and fast enough for my needs.

The fan impeller broke after 6 weeks of usage. I loose my money buying this. Very very low quality.