Poorly featured and inadequately described. The LA-20 is almost twice as good.
Beurer have produced 3 diffusers: LA-20, LA-30 & LA-50. Normal logic would expect that the earliest model would be the lowest number but in their case the reverse is true. The LA-50 is the oldest diffuser and now no longer available.
The LA-20 specification is that it runs in excess of 7 hours using 80mls and 5 volts. I purchased the LA-30 because I assumed it was an upgraded model. Unfortunately it needs 100mls, runs on 12 volts and only last for 4 hours. This is absurd. The LA-20 is a good product which I would recommend. I would not recommend buying the LA-30.
Verified purchase: YesCondition: Pre-owned