Shop The Collection
Essential Oil Diffusers
Browse our essential oil diffusers range with free UK delivery and straightforward 30 day returns.
Sold out
Sold out
Sold out
Sold out
Sold out
Sold outBrowse essential oil diffusers for home fragrance at Hartes Homestore, including selected Airomé ultrasonic diffusers in 100ml and 250ml sizes and decorative passive diffusers. Explore porcelain, ceramic, glass and cut-metal finishes for bedrooms, living rooms and other home spaces.
Choosing an Essential Oil Diffuser
First decide between an ultrasonic diffuser, which uses water and suitable essential oil according to its instructions, and a passive diffuser, which disperses fragrance without the same powered misting mechanism. Compare water capacity, dimensions, power supply and available settings on the individual product. Check instructions before use, especially around pets, children and delicate furniture.
Frequently Asked Questions
What is the difference between an ultrasonic and a passive essential oil diffuser?
An ultrasonic model uses a powered mechanism to disperse mist from a water-and-oil mixture, according to the manufacturer's directions. A passive design releases fragrance by a different method and may not require electricity or water. Check each product's instructions.
Should I choose a 100ml or 250ml diffuser?
Capacity describes the model's water reservoir, not a guaranteed running time or room coverage. A 100ml unit may suit a more compact position; compare the selected product's run-time guidance and dimensions before choosing.
Can I use any essential oil in a diffuser?
Use only oils and quantities approved by the diffuser manufacturer. Do not add perfume, carrier oil or other liquids unless the instructions specifically allow them.
Do essential oil diffusers need water?
Ultrasonic models normally require water filled to the indicated line, with essential oil added as directed. Passive models work differently, so check the instructions for your specific design.
How do I clean an essential oil diffuser?
Switch off and disconnect an electrical diffuser before cleaning. Empty and wipe the reservoir as instructed, do not immerse electrical parts and follow the manufacturer's guidance on cleaning frequency.
Prefer warmed fragrance instead? Explore our Electric Wax Melt Warmers collection.