My husband just set our new BreatheSmart Air Purifier in the living room. He has been suffering from allergies for years. Every month he sees our doctor seeking medical relief. He finally gave up after the doctor that told him he had tried everything there is out on the market. My last resort was to locate a good air purifier for him. He sort of balked at the idea in the beginning, but after I had investigated almost every product out there and read the reviews, I knew my choice was clear. I ordered the BreatheSmart. It arrived this afternoon. It's been operating for a couple hours now on Automatic. Well I have to tell you that we are so happy with this product. No puffy eyes, tears flowing down the face, sneezing or coughing. So fast!!!!! So perfect!!!! Thank you so much. I'll be ordering another one for my husband's office and one for our vacation home.