RO, peace, calm and tranquility from the kingdoms of Denmark, Norway and Sweden. A serene blend of fresh cut grass and crumpled leaves, ambered woods and hidden blankets in the dunes. Will scent a room for at least 3 months. Our diffusers bring subtle and stable fragrance to your home for weeks on end. To get the most from your RO scent diffuser remove the seal, place the sticks into the liquid the more sticks used the stronger the scent then rotate the sticks weekly, using a paper towel to hold them.