Details Volume:1 L (33.8 oz) Regulatory Information: Isopropanol. Highly flammable liquid and vapor. May cause serious eye irritation. May cause drowsiness or dizziness. Dangerous. Follow the instructions for use. Duration: 40h of diffusion - 160h of fragrance Fragrance is dye free How to light a Lampe Berger: Fill the lamp with the accompanying home fragrance. Light the burner. Blow the flame out after a couple of minutes to clean the air and release French fragrance that captivates and allures.