I use this in my classroom and also when a friend with allergies visits. Once it is on, the friend stops sneezing, so I know it works! Clean your filters on time, maybe sooner with heavy use, mine was dirty!
This excellent filter will last approximately six months and is very consumer friendly. We have no other home filters, including our A-C filter, which is as easy and uncomplicated to change.
I bought this unit about 3 weeks ago. LOVE how great it seems to collect everything out of the air. After the first week alone the pre-filter was quite visibly dirty. Low mode it runs pretty quiet. Medium, just a tad louder. But, we run it on high and it is very loud. That is the only reason for 4 stars. If you'd like an air purifier & white noise machine all in one, then this would be your 5 star machine.... lol....
I have purchased two PureZone purifier units for our home, and wanted to make sure I had replacement filters when it came time to change them. Ordering on the site was easy, shipping was quick, and the filters were packaged carefully. I've always believed in having genuine replacement parts, and PureZone backs up their products with them.