Great device.  Works great.
I really like this unit.  It is doing an incredible job of preventing litter box odor.  I have it right next to the box.  There is literally no odor.  The one thing that could make this device perfect...eliminate the sound of the fan.  I don’t think I could have this in my bedroom.  While it’s not excessive, it is as loud as fan or desktop computer fan running.  Other than that, I’m glad I bought the unit and it is working well for me.
Rating: 5 stars