This is the second one of these I've purchased. They work very well at cleaning the air. Speaking of cleaning, I really like the filter arrangement. The first two filters are user cleanable, thereby slowing down the expiration of subsequent filters in the pack. The front cover has two pushbutton-release latches which allow its removal. The filters are layered beneath. There is a vacuumable plastic pre-filter which grabs most large lint, fuzz etc. The electric grid behind is pretty delicate so use caution when cleaning it so as not to snap a wire or break a plastic insulator. The combination charcoal and pleated paper filter behind the grid is probably the first to expire, so I'd order a spare one of those with the cleaner, especially if you don't like to clean the pre-filters often.
The air is sucked in the front and blows vertically out the back. I recommend this filter where that airflow pattern fits your space requirements.
Rating: [5 of 5 Stars!]