Thanks Conair for the free Air Purifier. This sleeker model replaced an older and bulkier air purifier. I love that it is whisper quiet. I have it running in my office all day and am not disturbed by the sound of it running. Most of the time, I forget that it's there.  I feel good that the air I breathe all day, every day is cleaner with the use of this product.  It was super easy to set up and begin using.