We just got this a couple days ago and I can already notice a huge difference in the air quality of our home. After just 20 minutes of having it on it made a huge difference. The air felt much fresher and much more clean. I have chronic allergies and sinusitis so this is something that will be life changing for me. I struggle sleeping at night and I’m excited to keep getting good nights rest with this amazing purifier. It has multiple settings to keep your home as clean as possible in different seasons. I highly highly recommend this product.