I recently purchased the Purezone 3 in 1 true hepa air purifier on Black Friday. I was very hesitant to purchase an air purifier as we live in Hawaii and always have a fresh breeze blowing through our home. So why would I need it. Turns out I needed it because of the dust and dander from my dog. He sheds and I am constantly vacuuming. I noticed that when I turned on the purifier it was quiet and sucked up a lot of fur. There was also something about the air which felt "cleaner" . I don't know how to describe it but I'm happy with that. With it being the start of winter I am confident that there will be fewer sick days in our home. I will purchase a larger unit for our Living Room.