I am obsessed with these Hotel Collection Studio Scent Pro Diffusers! I have one upstairs and one in my basement, and the fragrance diffuses throughout my home! One diffuser scents up to 600 square feet. You can also adjust how often the fragrance is diffused. I set mine on low for 4 hours a day! My entire home smells amazing! There is no need for candles or plug ins. My favorite oil is Cabana. This fragrance is so airy and light, and it makes you feel like you are at the beach! The diffuser and fragrance is on sale right now! HotelCollection HotelCollectionFragrance CabanaOil HomeFragrance SmellGoodHome InspiredByRitzCarlton