Frequently asked questions

They use ultrasonic technology to break water and pure essential oil into an ultra-fine mist — without heat. This preserves the integrity of the aroma and disperses it evenly through the room.

Fill the tank with clean, room-temperature water up to the marked line, then add 3–6 drops of pure essential oil. Add more drops for a stronger scent, fewer for something subtle.

Depending on the model and mist setting, a single fill runs for up to 12 hours of continuous mist. An automatic shut-off turns the unit off safely once the water runs out.

Yes. AZULON diffusers run at under 25 dB — quiet enough to fade into the background of a bedroom, studio or workspace.

You can. A soft, colour-changing LED glow doubles as a gentle night light, and can be left on with the mist switched off if you prefer just the light.

Empty any remaining water after use, wipe the tank with a soft, dry cloth, and every couple of weeks clean the ultrasonic plate gently with a cotton bud. Avoid harsh detergents, which can damage the unit.

Shipping is free on every order — there are no minimum spend or hidden delivery charges.

We dispatch all orders the same day, with next-day delivery as standard, so your diffuser arrives quickly.

If something isn’t right, returns are easy and no-fuss. See our Refund and Returns Policy for full details.

Yes — every AZULON diffuser is backed by a one-year warranty. See our Warranty page for what’s covered.