Remarkable!
It's quite small and unobtrusive and yes, after a few days there is a noticeable difference. It definitely "cleans" the air with a steady but light (and thus safe level) of ozone. We keep ours in the kitchen and have absolutely noticed a difference. It takes some time to work, but just plug it in and leave it alone and over time, it definitely makes a difference.<br /><br />Highly recommended!
Rating: 5 stars