How to Use Lavender Oil in a Diffuser (and How Many Drops)

A few drops of lavender in a diffuser is one of the simplest ways to change the feel of a room. The trick is using the right amount: too little and you barely notice it, too much and the scent becomes heavy. Here is how we use it at home.

How many drops of lavender oil in a diffuser?

For a standard ultrasonic diffuser holding 100–300 ml of water, 3 to 5 drops is plenty. Start with 3 drops in a bedroom or small room, and go up to 5 in a larger living space. More is not better: an overpowering scent quickly becomes tiring and can irritate the eyes and nose.

Step by step

  1. Fill the diffuser with room-temperature water up to the marked line.
  2. Add 3–5 drops of oil.
  3. Switch it on for 30 to 60 minutes, then let the room rest. If your diffuser has an intermittent setting, use it.
  4. Empty, rinse and wipe the tank regularly so old water and oil don't build up.

Which blend for which moment?

Some of our sweeter blends are made for body use rather than diffusing. Each product page says whether a diffuser is suitable, so check it before you start.

Good habits

  • Diffuse in a ventilated room, and take breaks rather than running it for hours.
  • Keep diffusers out of reach of children, and be careful around pets, especially cats, which are sensitive to essential oils. Leave them a room without scent they can go to.
  • If you are pregnant, breastfeeding or have a medical condition, ask a professional before use.
  • Essential oils are for external, aromatic use only. Never swallow them.

No diffuser?

Place 1–2 drops on a ceramic aroma stone, or tuck a dried lavender sachet into a drawer or wardrobe for a softer scent that lasts for weeks.

Want to smell the blends before you choose? Come and see us at our stand on Earlham Street in Covent Garden, or explore the collection online.

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