I'm looking for replacement mesh cap for the Omron micro Air ultrasonic nebulizer model no: U03-4

Question edited for clarity.

The NU-03 seems a non-existent nebulizer. Try Omron direct for spares.

https://www.google.com/search?q=Omron+MicroAir+NU-03+parts

No NU-03

https://www.google.com/search?q=Omron+MicroAir+NU-03

....

Some people write that it needs replacing new batteries. To some extent they are right. But when batteries are weak it gives signal showing red led light on left side. But even if the green light blinks after pressing ON button and does not stay ON. It means that there is problem with it's MESH CAP(Part number NE-U22-4). Either you need to replace it ,if it is completely rusted/damaged due to its prolonged use/improper cleaning etc ,
Or needs proper cleaning.So before taking decision for it's replacement,one should try to clean MESH CAP properly. Try to clean it for 2-5mins in boiling water,remove it,rinse it and dry it naturally without wiping or touching the mesh. I have been following this procedure when I face such problem for NO MIST from my Micro air Omron Nebuliser model NE-U22, when green light does not STAYON. Just do this , mostly one need not to replace it's MESH CAP lifetime. I am using this nebuliser since 2009 and it works very fine. Just needs regular cleaning of MESH CAP, mouth piece, medication jar,cap/cover etc.,

You must be having trouble with the battery. Also please keep the nebulizer properly cleaned as instructed on the pack. Check the connection properly or replace the batteries if needed. Also check out for more information about Omron Nebulizer on the web. It would help you a lot.

You should check if the battery is working fine. I don;t think Omron U2 nebulizer can have any other problem as it works really good for me. Also it is important to clean the Nebulizer properly and please check out the manual for more info. which you would have received while purchasing the Nebulizer.

the mist will dry up.. it will appear because its nebulizer..

Yes. But not in an ultra sonic nebulizer.

Do not use the mouth piece when using the face mask. You are correct.

I, too, am looking for a manual for this product. I get a green light, but it does not appear to have any airflow coming from it.

you can contact +9198410-01188.
he will solve the problem.

There are two main types of nebulizers: jet and ultrasonic devices. Jet nebulizers form droplets by using a compressor to deliver a pressurized jet stream of air down a narrow tube and through an opening. This creates a vacuum (through the Venturi effect), thus drawing liquid from a reservoir. The resultant small droplets of liquid are propelled out of the machine by the continued jet stream. Ultrasonic nebulizers produce aerosolized droplets using high-frequency sound waves generated by a special crystal. Liquid drug is usually delivered to the crystal, where it forms a thin layer. Electricity excites the crystals, causing them to vibrate at extremely high frequency. This vibration forces the thin liquid layer through an adjacent mesh, creating a fine mist. Droplet size varies with the frequency of the sound waves created by the vibrating crystals.