The Shark NeverChange Air Purifier is intended to eliminate odors for any area up to 650 sq. ft. It was very easy to assemble, and it's very easy to operate. Before plugging it in, the directions say to insert an odor cartridge that came in the box. After doing that, you plug it in, and it instantly tells you the quality of your air in percentage. After running the purifier for a while, it eliminates odors and purifies the air you breathe. I highly recommend this product to everyone, especially those with pets.