It leaks when you are using it. The cleaning process is ridiculous. I have had many nebulizers, this is by far the worst
Good Design, but ...
Originally quite happy to get the NEB401 Mini Mesh, but even following the manufacturer's cleaning instructions, after a month of use the mist volume rate has diminished somewhat, with treatments now taking 20+ minutes. Battery is always fully charged; seems geared more toward pediatric and juvenile use.
Portability makes the NEB401 irreplaceable
This is my third neb unit. Takes 15 to 20 minutes to nebulize 3 MLS. of medicine, even after cleaning after each use. On the plus side, easy to clean, and good battery capacity.