Instruct: Classify a review as either positive or negative.
Query: Sounds like a leaf blower !

Believe the other reviews- I saw that this was going to be loud but didn't think I would mind. If you have sensitive ears, forget it. I don't have a decibel meter, but this thing is painful to use and I have to believe it exceeds safe noise levels for the user who must hold the device to make it work- you can't insert this, turn it on and walk away because it will blow itself right out of the fill port. I had to put on hearing protection while using it. It inflated a Coleman air mattress in seconds, and I would have been perfectly happy to have a pump running at a third the speed and with a tenth of the noise level. I'll keep it because I don't need it often, but this is not a consumer-friendly product.