Where not to put a diffuser?
Don’t Place Near Fans or Sunlight You would think placing your diffuser near a fan would be helpful in spreading the fragrance around, but it actually does the opposite. Instead, it causes the oil to quickly evaporate, with the scent disappearing with it. The same goes with a heat source or direct sunlight. Although you might be eager to hide your diffuser by placing it lower down, the best position will be closer to nose level than the floor. This is especially true in the case of large rooms. High ceilings or large open spaces might need stronger fragrances or two diffusers to get the desired scent strength in the room.