I love that this air filter is designed for a larger room. Since we have gotten a German Shepherd many of us in the household have been dealing with allergies and we have struggled to stop sneezing. But within a few days of plugging this machine in our allergies have diminished significantly. It's easy to use with simple instructions and a light that comes on when it needs a new filter. Everything is as easy as you can imagine and works like a charm. I also love the light sound that it makes (think of a very quiet fan), and it gives me a comforting background sound while I use it. I've already noticed some dog hair being cleaned up from the air after just a few days. I highly recommend this product. It's truly been a lifesaver for our allergies, especially in our large living room.