I love this Humidifier and Air Purifier! It works excellently in large rooms. It is a natural deodorizer. It helps combat allergies, pollen, and pet dander! It helps eliminate 99.9% of airborne mold, bacteria, and viruses. I love that it has built-in reminders for filter changes, salt levels, and water levels. If you are looking for a great Humidifier and air purifier, I would highly recommend it!