Is this a waterless diffuser?

Yes. It takes fragrance oil directly with no water, which is why it can scent a larger space than a water-based diffuser of the same size.

How long does 120 ml of oil last?

It depends on the scent intensity setting. At low output, expect several weeks of intermittent use; at continuous high output, the reservoir empties in days.

What rooms is it sized for?

It is built for medium to large spaces such as lobbies, salons and open offices. A small bedroom will likely be overpowered at higher settings.

Does it shut off automatically?

Yes. It has automatic shut-off, which stops the pump when the oil level gets too low.

What comes in the box?

Expect the diffuser unit and a power adapter. Fragrance oil is not included, so budget for oil separately.

How does it compare with other waterless diffusers?

It matches the usual waterless layout: a metal body, a 120 ml oil reservoir and automatic shut-off. Rivals in the same class often add app or timer controls, which this unit lacks.