Awesome
I bought these to put in my granddaughter's room because she is allergic to EVERYTHING.  She's since spent the night in her room and for once, we didn't have to make any scary trips to the ER.  I keep this plugged in all the time and plant to buy more.  I have air purifiers all throughout my home because of her allergies to dust and anything you can imagine and this one is by far one of my faves.  It has a pleasant light scent.
Rating: 5 stars