DHLifelabs have created a well thought out product that does a great job filtering the air in our home. It was packaged nicely with straightforward assembly.  The unit is light for it's size and easy to move from room to room. On full speed the fan can get loud but in lower settings it is not really noticeable. It left the air smelling fresh in each room we placed it in. No issues at all as we have moved it from room to room and ran it constantly. Not much to do other than plug it in and turn it on. I do like the auto button for ease of use.  Just press it and let the machine decide the necessary speed settings. It even did great in a room much larger than it's intended for. Overall we think it is really well done, feels solid, is easy to use and does what it says it does. Nice product!