Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Don't be fooled it's NOT Silent!!
Review: Sorry this pump is Not silent, quiet or a whisper!! I have had aquariums for over 20 years and have had many air pump usually to get a Silent air pump you need to spend about $30-$40. I was in need of a new one & after reading on Amazon so many post about the Tetra whisper being so quiet & silent, I thought I'd give it a try. I should have know better you can't get silence for $10.I think the other post who said it is silent never had a high quality air pump before, that sounded like trucks running so yes this Tetra will seem a little quieter. Or they have so many other noise in the room that are louder then the air pump so it seems quiet. Take it from someone who has a very quiet house & who has had expensive air pump and many air pumps this Tetra whisper is NOT SILENT!! Yes it is a little quieter then the cheap free ones you get with tank kits but not that quiet or silent.
