Fill the tank with water, add 3–5 drops of essential oil and press the button. An ultrasonic plate turns the water into a fine, cool mist while warm LED light flickers beneath it — the mist rises and glows like smoke above embers.

No. The mist is cool and the LED stays cold. It is safe on wood furniture, near kids and pets, and while you sleep.

Yes. There is no flame and nothing heats up, and it shuts itself off automatically when the water runs low.

Any water-soluble essential oil. Add 3–5 drops per fill — pine, cinnamon, orange and vanilla are our winter favorites. Avoid thick carrier oils, which can clog the mist plate.

Several hours of continuous mist, depending on the mode. The flame light can stay on without mist if you just want the glow.

Shipping is free to the US and Canada. Orders arrive in 10–15 business days, and you receive a tracking number by email as soon as your order ships.

For $3.99, optional Shipping Protection covers your package against loss, theft or damage in transit. If anything happens before it reaches you, we send a free replacement or refund you in full. You can add it in your cart — it is entirely up to you.

You have 30 days after delivery to try HearthMist. Not happy? Reach us through the Contact page and we will make it right with a replacement or a full refund.

Empty the tank, wipe it with a soft cloth and a drop of white vinegar once a week, and rinse. Never submerge the base.

Use the Contact page — we usually reply within 24 hours.