Uhhh Diffuser: How to Get the Most Out of Your Fragrance
By ALESSI UK: Italian Design Home Accessories, Kitchenware & Gifts | Published: 2026-10-25
Category: How-to Guides
Learn how to set up and maintain your Alessi Uhhh diffuser for a consistent, long-lasting home fragrance. Includes step-by-step tips and common mistakes to avoid.
Quick answer
Place the diffuser in a spot with gentle air movement, rotate the wooden leaves occasionally, and top up the oil every few weeks for a steady, subtle scent.
Why the Uhhh diffuser is different
Unlike a simple reed diffuser, the Uhhh uses mahogany wood leaves designed by Marcel Wanders. The wood absorbs and releases fragrance more slowly than synthetic reeds, so the scent is lighter and lasts longer. This also means you need to be a bit more patient and deliberate with placement and maintenance.
How to set up and maintain your Uhhh diffuser
- Choose the right spot: Place the diffuser on a stable, level surface away from direct sunlight, heat sources, and drafts. A hallway or corner with gentle air movement works best. Avoid placing it near an open window or air vent. Too much airflow will dry the wood leaves quickly and waste the oil. Too little and the scent may not circulate.
- Insert the wood leaves properly: Remove the cap and insert the mahogany leaves into the bottle, fanning them out slightly so they don't touch each other. Let them sit for 2–3 hours before flipping them to saturate the wood evenly. If you flip the leaves too early, the oil may drip. Wait until the wood has absorbed enough oil to be slightly damp to the touch.
- Rotate the leaves weekly: Every 7–10 days, flip the leaves upside down so the dry end absorbs fresh oil. This refreshes the scent output and prevents the top of the leaves from becoming clogged with dust. Skipping rotation leads to a weaker scent. Set a weekly reminder on your phone.
- Top up the oil as needed: When the oil level drops below half, add a few drops of compatible fragrance oil (check the brand's recommendations). Do not mix different scent families in the same bottle. Mixing oils can create an unpleasant smell and shorten the life of the wood leaves. Stick to one scent at a time.
- Clean the leaves every 2–3 months: Remove the leaves and rinse them gently under lukewarm water. Pat dry with a soft cloth and let them air-dry completely before reinserting. This removes dust and residue that can mute the scent. Do not use soap or alcohol; they can strip the wood's natural finish and affect absorption.
Product facts
- Uhhh: The diffuser features elegant stylised leaves in mahogany wood that transform the room diffuser into a small interior design accessory. The wood leaves act as both a decorative element and a natural wick, so the scent release is as much about aesthetics as function.
Uhhh
