I bought this same model several years ago and needed another one to cover additional parts of the house. I had been so pleased with the previous one that I bought it again.
So far it is great! We had some issues with a wet smelling basement. I got this with the odor removing filter. It really helped to reduce the smell while we were waiting for repairs. Additionally, we used this in our bedroom to help with an off-gasing rug pad. Within hours the smell was greatly reduced.
Four cats (long story, and three are long haired) and a dog, so we rarely see a blue light, but I think it has helped! Have already cleaned off the filter cover once with flying fur.