VEVOR Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-Motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

It's definitely not whisper quiet but it's quiet enough to go in my crawl space and not be heard in the house which is what I needed. It directs the air almost like a tunnel so it works great to circulate versus a fan that spreads out. On medium power you can feel the wind from 10ft away!

Works well. Case all plastic including mounting bracket. Time will tell how long it lasts.

It generates a lot of airflow, but it's a lot louder than they try to advertise it. I wouldn't put it in a living room. It works well, very strong construction, and easy to use.

Great suction for laser engraving! Be sure to seal all the removable pieces and attachment points including the clamps on the fan. Pleased!

Product had an extremely loud electrical whine, even on the lowest setting. Heard over other blower fans. Noticeable vibration while in use. PRODUCT CANNOT BE RETURNED. Future buyers beware.

I recently purchased the VEVOR Inline Duct Fan, 6-Inch 400 CFM, to replace the old fan in my kitchen hood. I must say, I am extremely impressed with its performance. The installation process was a breeze, and the powerful airflow it generates is remarkable. It effortlessly extracts kitchen smoke and odors, leaving my kitchen fresh and clean. The fan operates quietly, which is a huge plus for me as I can now cook without any intrusive noise. The build quality is excellent, and I believe this fan will last for a long time. Overall, I am beyond satisfied with the VEVOR Inline Duct Fan and would highly recommend it to anyone in need of an efficient kitchen ventilation solution.The fan fits perfect, and the looks of it is durable and will last long due to the quality finish.

Inexpensive and works well. I've had no problems with it and it performs at least as well as higher priced fans from competitors. I would purchase this again.

Nice fan