I have purchased two these and they great. I use Eucalyptus in ours.
                    Eucalyptus since we have a small dog in the house and no small children in the house anymore.
                    I do suggest people research about the different oils and what they like because some might be a small danger for some people and their animals that live in the house. I love ours. One for the bedroom and one for the kitchen and living room area. Highly recommend this product.