We have cats and dogs and once a month I ”treat” the house using this. I use mostly lavender and rosemary oil but also like lemongrass or peppermint. They say that using lavender and rosemary it not just refreshes but it keeps away fleas and moths. I think that makes sense because I make soap that I use on our dogs and that also uses rosemary as one of the ingredients. If you have friends that like Potpourri as a gift they will also like this.Once you have made this and like it, try to buy the rosemary and lavender in bulk.