Blue air is an effective air purifier, however the filters make it fairly expensive to run, with the out dust collector and these aie filters which must be replaced at least ywice a year you will be spending over $100 dollars a year.
Unfolds and snaps into square easily. Fits perfectly and works Great! Tried non-genuine Blueair filters and just not the same. Genuine Blueair Blue Pure + replacement filters worth it!