Question about Mabis CompMist Compressor Nebulizer

2 Answers

Very little mist coming out

My machine is putting out very little mist. Anybody know what may be causing this ?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 71 Answers

You'll read a lot about making sure that the filter is clean and that the medicine cup is cleaned and that hard water can effect the operation of the nebulizer. However, the problem is most likely in the pump. Even though the pump is running, it is not pushing enough air into the medicine cup. You may even feel air coming out of the tube. When unrestricted, the air will come out, but, once restricted by the medicine cup, the air may not be fast enough to nebulize the liquid. If you want to confirm this, take the tube and hold it to the end of a bike pump, if, while pumpung, you successfully see mist, then you know for sure.

Fixing the pump is not too difficult. Over time, the chamber where the air is compressed becomes dry and, just like a dry bike pump, the air escapes from the chamber due to poor seals. The pump is pretty simple. Make sure it is unplugged from power and remove the screws holding the housing together. Inside you will see the motor, a fan, a power switch and the intake and outtake tubes. Follow the outtake tube to the pump. The junction where the tubes meet the pump is the location of the air chamber. You may need to remove the screws that secure the tubes to the chamber. Once apart, take some grease and lightly coat all of the interior surfaces of the chamber. When finished, reassemble and you're good to go!

Posted on Apr 21, 2009

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 40 Answers

You may want to check the holes to make sure they are fitted tightly and not clogged in some way to where the mist is not able to come through correctly and you may want to check to see if there is some kind of malfunction with the machine so if you kept the papers to it call the manufactor and explain to them the problem and they also may be able to tell you what is going on with it if nothing i told you works, Good Luck!

Posted on Jan 26, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Aria diffuser does not emit any mist

Did you find a solution? I just received mine and have the same issue.

Mar 12, 2013 | Young Living Aria Ultrasonic Diffuser

2 Answers

Few bubbles and no mist

check with medicine chamber for leakage and breakage

Apr 10, 2011 | Mabis NebXP Portable Handheld Compressor

1 Answer

No medicine coming out of nebulizer

Replacement of neb kit the most common cause. Try this first. Then get back with me.

May 31, 2010 | Respironics HS800 Disposable Nebulizer Kit...

1 Answer

40 270 000 Mist II Ultrasonic Nebulizer With Recharge Battery: Have Model MABIS MIST 11 Ultrainsic Nebulizer Mod...

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.

May 17, 2010 | Mabis 40 270 000 Mist II Ultrasonic...

1 Answer

My solution in the nebulizer is not foaming or misting!

you may need to switch out your mask unit, the cup the medication is put into has a very tiny hole for air to circulate through. if that hole has been tampered with, or is partially clogged you will not get a mist. you should change out your mask and tubing regularily for sanitary reasons.
hope you get it running again!

Mar 20, 2009 | DeVilbiss PulmoMate Aerosol...

1 Answer

There is no mist coming out of the neb machine.

No! don't buy a new machine. First wash the mask, tubes and any other washable part really well by hand. There could be some dryed on fluid blocking the flow of the liquid. Then make sure that the part where you put the liquid does not have liquid on top of the ******** part. Usually a bit of shaking off of the liquid or using a paper towel to dry that part off should help. If this doesn't work let the nebulizer dry out overnight with all parts seperate. I constantly have these kinds of problems with my nebulizer and these seem to do the trick if these don't work then you might need a new machine.

Nov 20, 2008 | Cardinal Airlife Brand Modudose 5 Ml Unit...

1 Answer


Ok it's the part underneath where you breath in. Screw off that part and put it in. Then the tube will push the air thru making the mist.

Nov 06, 2008 | RTO Spider Nebulizer

Not finding what you are looking for?
Mabis CompMist Compressor Nebulizer Logo

1,340 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mabis Nebulizers & Supplies Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Kerrie Jager
Kerrie Jager

Level 2 Expert

45 Answers


Level 3 Expert

60867 Answers

Are you a Mabis Nebulizer and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides