Skog Norwegian/Swedish for 'forest'. Boreal forests cover half of Scandinavia stretching unbroken from the far south to the Arctic circle. With impressions of pine and fir, aged leather and woodland lily of the valley. Will scent a room for up to 3 months. Skandinavidk diffusers bring subtle and stable fragrance to your home for weeks on end. To get the most from your Skog 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.