Has anyone ever used a Rabbit Air Purifier? I am looking for an air purifier to help cut down on the dust we get that comes along with having 8 dogs, us living on a dirt road, and having carpet! One day we will pull up the carpet and put down hardwoods, but for now we have carpet. So many different air purifiers out there...hard to know which ones work the best and are the best for the money. Thanks for any suggestions! If I'm going to spend the money I want to make sure I get a good one.