- How long does the tank last on one fill?
- About 6-8 hours in continuous mode and 8-10 hours in intermittent mode. That covers a night but not a full day.
- Does it shut off when the water runs out?
- Yes. Waterless auto shut-off stops the mist and light when the tank is empty, so it is safe to leave on while sleeping.
- How loud is it?
- Rated under 25dB, roughly a soft whisper. Most people will not notice it on a nightstand.
- Can I set a timer?
- Yes. Timer settings are 1H, 3H, 6H and ON, so you can run it for a set period or continuously.
- Is $39.75 a good price?
- It is the only new price listed, $39.75 at PremiumVIALS as of November 8, 2026, so there is no recent range to judge it against. Compare it with other 150ml metal diffusers before buying.
- What comes in the box?
- The diffuser, power adapter and a measuring cup for filling. Essential oils are not included.
- Where is the ASAKUKI Metal Essential Oil Diffuser with Tree Design cheapest?
- At PremiumVIALS, for $39.75, as of our latest check.
- Where can I buy the ASAKUKI Metal Essential Oil Diffuser with Tree Design?
- 2 stores we checked sell it, including PremiumVIALS, Amazon.