As soon as I turned it on I noticed alot of vibration on low speed. It gets worse on the middle and high speeds. I think I can see one of the blades just a tiny bit out of alignment with the other 2 blades. That's all it would take. I am going to attempt to fix this in the future. The other thing I don't care for is the size of the lifting handle on the top rear of the fan guard. It's way to small. I can just get the tips of my fingers underneath the small wire handle. Other than that, It moves plenty of air for my needs. A little better quality control is needed.
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