A diffuser puts the scent of an oil into the air of a room. A little goes a long way, and the goal is a light scent you barely notice, not a strong one.
How much, how long
- Drops: start with 3 to 5 drops in about 100 ml of water, or follow your diffuser's instructions, which come first. More is not better: a light scent is the aim, and a strong one is a sign to use fewer drops.
- Time: run it in sessions of about 30 to 60 minutes, then switch it off for at least as long. Do not run it all day or overnight.
- Room: use it in a room you can air out. Open a window or door for a few minutes after each session. Small closed rooms and cars get strong quickly.
Who should not be in the room
- Babies under 3 months, and be cautious with young children (guide).
- Pets: cats, birds, and small animals can be sensitive; give them a way out (guide).
- Anyone who finds the scent bothersome. People with asthma or other breathing conditions, and anyone who is pregnant, should ask a health professional first. If the scent bothers you, stop.
Where to put it
- On a flat, stable surface, out of reach of children and pets, away from the edge, with the cord out of the way.
- Not on wood or fabric that water or oil can mark. Essential oils can damage varnish and some plastics.
- Only ever fill with water and the oil. Do not add other liquids.
Clean it
- Rinse the tank after each use and let it dry.
- Once a week, wipe it with a cloth and white vinegar or rubbing alcohol, as the maker advises, then rinse well.
- Change the water each time instead of topping it up. Stale water grows film and mould.
Types of diffuser
- Ultrasonic (water and a mist): the most common; follow the drop count above.
- Nebulising (no water, undiluted oil): stronger; use shorter sessions, a few minutes, and a larger room.
- Heat and candle burners: heat changes oils and a flame is a fire risk; never leave them unattended.
- Reed and passive diffusers: the mildest option, and no timer needed. Keep them out of reach.
Please note: this is general safety information. If the scent bothers anyone, or you feel unwell, switch the diffuser off and air the room.
Sources
- Tisserand Institute, safety and learning resources
- Tisserand R, Young R. Essential Oil Safety, 2nd ed. Churchill Livingstone, 2014
- ASPCA Animal Poison Control: essential oils and pets
More guides
- Dilution calculator
- Dilution and the patch test
- Babies, children and essential oils
- Pets and essential oils
- Oils and sun exposure
- Storage and shelf life
- Choosing a carrier oil
- Mixing oils in a diffuser
- How to read our label
Questions about an oil or a blend? aura.elixir@outlook.com