Dirty, smelly air is something nobody likes! So help get rid of the smell with the Catalytic Burner from Lampe Berger! This replacement wick for any Lampe Berger lamp improved diffusion capabilities that help eliminate of odors faster. Plus the Catalytic Burner makes fragrances that are more refined and subtle. So get rid of the not so pleasant odors with the Catalytic Burner from Lampe Berger! We recommend that the burner and wick assembly be replaced every 200 lightings or once per year.