Beginner Basics

How do I use a diffuser?

A diffuser disperses an oil's aroma into the air around you. Most home diffusers are ultrasonic — you add water, add a few drops of oil, and switch it on.

Setting up

  • Fill to the marked line with clean, room-temperature water.
  • Add the number of drops your diffuser's manual suggests — often somewhere around 3 to 8.
  • Place it on a stable, water-safe surface away from where it will be knocked over.
  • Run it in a room with normal ventilation rather than a sealed, tiny space.

How long to run it

Intermittent sessions are the usual advice rather than diffusing continuously all day — many people run 30 to 60 minutes at a time. Stop if anyone in the room develops a headache, a cough or any discomfort.

Be considerate of others sharing the space: children, people with respiratory sensitivity, and pets cannot leave the room on their own.

Cleaning

Empty and wipe the reservoir after each use, and give it a deeper clean periodically per your manufacturer's instructions. Leftover oil residue builds up and dulls the aroma of the next blend.

Diffuser-friendly ideas

Recipes labeled Diffuser are written for exactly this method.

Find diffuser recipes
Where this comes from (2)

My Oil Companion is for organization and general education. It is not medical advice and is not intended to diagnose, prevent, treat, or cure any condition.