Omron MicroAIR U22 Instruction Manual page 21

The green power
indicator turns on
but the unit does not
nebulize.
If the unit does not nebulize properly after checking the possible causes above, contact your OMRON
dealer.
Medication or water has collected
on the electrodes on the main unit.
on the mesh
Remove the medication or water.
Refer to page 15.
Refer to page 17.
21