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MicroAIR U100

Efficient treatment when you need it.

The MicroAIR U100 Nebuliser is efficient, silent, and fits easily into your bag—so your whole family can breathe easy, wherever life takes you.

Buy U100 now What is a nebuliser?
Truly portable

Instant therapy in your pocket.

Traditional nebulisers can be bulky and require a power outlet to work—not very convenient when you’re planning a nice day out!

Now relief is at your fingertips, even when you’re on the road. The battery-operated MicroAIR U100 is compact, travel-ready and easy to reach for whenever you need it.

Virtually silent

Deliver your own treatment without making a sound.

Whilst traditional nebulisers can be loud, the MicroAIR U100 is virtually silent.

Simply press one button, breathe naturally, and slip back into your bag when you’re done—all without turning any heads.

More flexible

Get relief from any angle or position.

The MicroAIR U100 helps deliver efficient treatment, whether you’re lying down, standing up, or dangling upside-down from monkey bars. All you have to do is find the position that’s most comfortable for you.

More efficient¹

Help control your symptoms with unique mesh technology.

The MicroAIR U100 uses a unique mesh technology that delivers more medication into the lungs compared to most compressor nebulisers.

A better experience for you.

Take it anywhere
Virtually silent
Works in any position
More efficient technology¹

Live forward with zero compromise.

At OMRON Healthcare we promise to minimise the impact of your health conditions and enable you to live a more fulfilling and active life with the products we offer and continue to develop. Helping you to live forward with zero compromise towards a freer and more rewarding life.

GOING FOR ZERO COMPROMISE on healthier lives.

See how the MicroAIR U100 came to be

The relentless pursuit of quality.

In 1978 we launched our first nebuliser, from our founding base in Japan, and as leaders in this sector we’ve continued to further advance nebuliser technology.

This has led us to launch our latest portable, pocket-sized nebuliser, the MicroAIR U100. Take a look at our legacy lineup to see the advancement for yourself.


Nebulisation in hospitals

Our first nebuliser, the ultrasonic NE-U10.


Nebulise at home

Nebulising treatment shouldn’t require a hospital visit. With the invention of the NE-C10 compressor nebuliser—it no longer did.


Nebulise on the go

Many respiratory diseases require frequent treatments during the day. The invention of the NE-U03 portable mesh nebuliser allowed efficient treatment without having to stay home.


Nebulise without the noise

Some nebulisers can be very loud. The invention of the CompAIR C801 home compressor nebuliser had a low sound level so treatment was possible without having to go into another room.


Nebulise efficiently—anywhere, anytime

The MicroAIR U100 uses advanced mesh technology making it more efficient than most compressor nebulisers. Virtually silent, truly portable, and usable in any position—it’s a revolution in convenience and comfort. Now efficient treatment is possible wherever life takes you.

Breathe easy, everywhere.


OMRON offers a wide range of nebulizers to fit every need and every budget. With each breath, our reliable, portable and discrete nebulizers deliver efficient drug deposition, providing great results. Buy now

  • Microair-u100

    MicroAIR U100

  • A3complete

    A3 Complete

  • U780

    UltraAIR Pro U780

    NE-U780-E pro
  • Ne-c28p

    CompAIR™ NE-C28P

  • Compair ne-c801

    CompAIR™ NE-C801

  • Ne-c803 nebulizer omron

    CompAIR™ Basic NE-C803

  • Ne-c900 nebulizer omron

    CompAIR™ Pro NE-C900

  • Microair u22

    MicroAIR U22

  • Compair c801 kids

    CompAIR C801KD


MicroAIR U100


Efficient treatment when and where you need it

The OMRON MicroAIR U100 is a small, portable nebuliser that helps to efficiently treat respiratory conditions from a simple cough to asthma.

Traditional nebulisers can be bulky, noisy and require a power outlet to work—not very convenient when you’re planning a nice day out!

Now relief is at your fingertips, even when you’re on the road. The battery-operated MicroAIR U100 is compact, travel-ready and easy to reach for whenever you need it. The unique mesh technology makes it more efficient1 and more comfortable to use than traditional nebulisers. It is virtually silent and the unique design enables usage in any position. Even while lying down, making it more comfortable for smaller children.

Product features: 

  • Portable, pocket-size and battery operated (2xAA) 
  • Silent, one-button operation enabling discreet use
  • Efficient medication deposition in the lungs
  • 360° operation makes inhalation possible in any position

Box contains:
Main Unit, Main Unit Cover, Medication Container, Mesh Cap, Mask Adapter, Mouthpiece, 2 Batteries (AA), Child and Adult mask (PVC), Soft Pouch, Instruction Manual, Quick Setup Guide Accessories: Adult Mask (PVC); Child Mask (PVC); Infant Mask (PVC); Adult Mask (SEBS); Child Mask (SEBS) set - 1 child mask + adapter for child mask; Mesh Cap; Medication Container; Mask Adapter; Mouthpiece; AC adapter

Instruction Manual

1. Compared to most compressor nebulisers

A3 Complete


Unique 3-in-1 adjustable nebulizer

OMRON A3 Complete nebulizer provides the complete nebulization solution for a wide variety of respiratory conditions.

One single device can help you treat respiratory infections or chronic conditions of the upper and lower airways. This ranges from common cold infections or allergies to asthma or COPD.

For an inhaled medication to be most effective, it should reach the part of the airways that need to be treated. This is achieved by transforming the medication into an aerosol with different particle size.  Bigger aerosol particles will mainly be deposited to the upper airways, while smaller particles will be deposited to the lower airways.

Product features:

  • Unique 3-in-1 adjustable nebulizer kit
  • Fast and efficient
  • Complete treatment of the upper, middle & lower airways
  • Allows for fast relief for upper airways
  • Small aerosol particles reach deep into the lungs

Read more

Box contains:

  • Nebulizer
  • Child mask
  • Adult Mask
  • Pack of filters
  • Nose piece
  • Mouth piece
  • Instruction manual


  • OMRON A3 Complete Accessory Kit (contents: nebulizer kit, air tube, mouth piece, nose piece, adult mask, child mask) - NEB6001
  • OMRON A3 Complete Air Filters (contents; 3 pieces) - 3AC408

Instruction Manual

UltraAIR Pro U780

NE-U780-E pro

Hygienic professional ultrasonic nebulizer

OMRON UltraAIR Pro U780 is a professional ultrasonic nebulizer. The high aerosol output makes it ideal for the medical treatment of respiratory diseases like asthma, COPD, cystic fibrosis or emphysema.

This device has a benefit that makes it easy to clean. The removable water tank can be completely immersed in a disinfectant liquid. A simple solution to a difficult cleaning concern. It also operates completely silently and offers easy touch controls that allow for adjusting the nebulization volume and the air-flow. The backlight display and easy-to-read indicators means operating this device is remarkably simple.

Instruction Manual

CompAIR™ NE-C28P


The robust & highly efficient home based nebulizer for frequent usage

The OMRON CompAir™  NE-C28P has a robust design for intensive use, suitable for the treatment of lower airways respiratory diseases like asthma, COPD, cystic  fybrosis or emphysema. 

It is a highly efficient nebulizer that combines a short inhalation time with efficient medication delivery thanks to its powerful compressor and V.V.T technology .

The high efficiency Virtual Valve Technology (V.V.T.) from OMRON adapts to your breathing, thus matching your breathing pattern. This technology reduces drug wastage while breathing out and maximizes drug availability when breathing in.  Also, this nebulizer kit is made of easy to clean Polypropylene without the use of Silicon valves which are commonly used in conventional nebulizers.


CompAIR™ NE-C801

Compair ne-c801

The efficient and silent everyday nebulizer

The OMRON CompA.I.R™ NE-C801 is an every day compressor nebulizer for the treatment of lower airways respiratory diseases like asthma. With a low sound level, the CompA.I.R™ NE-C801 allows for a very quiet and comfortable operation The CompA.I.R™ nebulizer kit also features OMRON’s Virtual Valve Technology.

CompAIR™ Basic NE-C803

Ne-c803 nebulizer omron

The light and quiet entry-level nebulizer

The OMRON CompAIR Basic™ NE-C803 is the lightest and quietest Omron compressor nebulizer for the treatment of lower airways respiratory diseases like light asthma.

This nebulizer provides an excellent value for money for consumers looking for a basic compressor nebulizer.

CompAIR™ Pro NE-C900

Ne-c900 nebulizer omron

The professional easy to clean compressor nebulizer

The OMRON CompAir™ Pro NE-C900 is a professional compressor nebulizer for the treatment of patients with lower airways respiratory diseases like asthma, COPD, cystic fibrosis or emphysema. 

It is built to the highest specifications to provide complete patient care. It produces a high nebulization rate thanks to its durable, high-output compressor, so that your patients receive more medication where they need it most. 

NE-C900 has an easy to clean, and easy to assembly and disassembly design thanks to its unique two-part OMRON Smart Structure™ nebulizer kit, giving you more time for direct patient care.

In addition to that, it comes with a convenient handle for carrying it safely if needed.

MicroAIR U22

Microair u22

Truly portable pocketsize nebulizer

The MicroAIR U22 is a truly portable, pocketsize nebulizer that will fit in any handbag or briefcase, making it  ideal for the on-the-go treatment of lower airways respiratory diseases like asthma.

Its small size and battery operation give you the freedom to go wherever and whenever you want, having your medication always within reach. You can use it discreetly even in public places.

Moreover, you will never worry again about keeping your nebulizer in the right position. The MicroAIR U22 is the unique pocket nebulizer that can be used in any position, even upside down!

The OMRON MicroAIR U22 also allows for fast treatment, thanks to it’s unique long lasting metallic mesh technology that allows using medication directly without dilution. This technology also makes the device virtually noiseless and allows for up to 1000 uses, so that it will cost you less than 10 euro cents per use!

Product features:

  • High drug delivery rate of more than 0.25 ml per minute
  • Small and discrete size of 38(W) x 104(H) x 51(D) mm
  • Portable operation, weighing less than 100 g, with 2 AA battery operation
  • Functioning in any position: even upside down
  • Virtually noiseless at the low noise level below 5 dB 
  • Long lasting mesh technology for up to 1,000 uses per mesh

Instruction Manual

CompAIR C801KD

Compair c801 kids

Silent nebulizer for babies and children

OMRON CompAIR C801KD  is a compressor nebulizer for the treatment of lower airways respiratory diseases like asthma in babies and children.

It is specially designed for babies and children, thanks to its silent operation and child-friendly design.  CompAIR C801KD comes with a puppet accessory that can be attached to the device to make the inhalation more enjoyable. The device also comes with a child and infant mask for children and babies.

Product features:

  • Designed for the treatment of lower airways conditions, with the particle size of 3.0 µm
  • Suitable for babies and children, with kid accessories and toys included
  • Efficient delivery of medication achieved through Virtual Valve Technology
  • Nebulization rate of 0.3 ml per minute
  • Silent operation at the noise level of 46 dB
  • Small, compact device

Instruction Manual


Frequently asked questions

  • What makes the MicroAIR U100 different from traditional nebulizers?

    The MicroAIR U100 is a unique portable mesh nebulizer. It efficiently treats a wide range of respiratory conditions from a simple cough to asthma. Unlike traditional nebulizers it is portable, battery operated and virtually silent. It allows you to take your medication wherever and whenever you need it.

  • What is the battery lifetime of the MicroAIR U100?

    One battery set of the MicroAIR U100 will last for approximately 4 hours. It depends on the type of medication and the duration of your treatment how many sessions one battery set lasts. Optionally an AC adapter is available to save batteries when using the MicroAIR U100 in the comfort of your own home.

  • What is the difference between a mesh and a compressor nebulizer?

    All nebulizers are devices that convert liquid medicine into aerosol droplets that can be easily inhaled through a mouthpiece or mask. The difference is in the technique that is used to convert the medicine into aerosol droplets. A compressor nebulizer uses compressed air to create the aerosol.

    A mesh nebulizer uses a vibrating element oscillating at high frequency to push medication through fine holes in the mesh, generating aerosol droplets. This technique allows the nebulizer to be very compact and silent. It makes them easy to use on-the-go, whenever and wherever you need it.

  • Can the MicroAIR Nebulizer be used for treatment that requires continuous or intermittent flow?

    The MicroAir U100 is designed to accommodate your needs for either type of operation. Follow the instructions of your healthcare professional regarding your treatment plan.

  • The standard OMRON masks (adult or child), is made from PVC (Poly Vinyl Chloride), is a more durable material available?

    OMRON also offers a SEBS (Styrene Ethylbutylene Styrene, an elastomeric material), mask in both an adult and child version. It is more costly compared to the PVC but can be boiled for through cleaning. Do NOT attempt to boil a PVC mask, these will quickly harden and deform if this is done.

  • What is a nebulizer and what is it used for?

    Nebulizers are devices that can convert liquid medicine into aerosol droplets that can be easily inhaled through a mouthpiece or mask. Nebulizers are intended to be used for inhaling medication for respiratory disorders.>

    A nebulizer can be used to treat diseases of the upper, middle and lower respiratory tract. For example:
    - Asthma
    - Chronic Obstructive Pulmonary Disease, also called COPD
    - Bronchitis and Bronchiolitis Pneumonia
    - Rhinitis, also called Common Cold
    - Allergic Rhinitis, also called Hay Fever
    - Chronic Rhinosinusitis

    Read more

  • As of which age can a nebulizer be used?

    Nebulizers are appropriate for the use of babies and children. 

  • How often do I need to replace the different parts and where can I buy them?

    For most nebulizers it is recommended to replace the nebulizer kit, the mouth and nose piece, masks and tube every year. Air filters should be replaced approximately every 60 days. Specifically, for the Mesh Nebulizer it is recommended to exchange the mesh cap after approximately 1 year.

    To find replacement items or additional accessories for your Omron nebulizers, please contact your usual distributor.

  • What parts of the nebulizer should I clean and how often?

    Depending on the type of nebulizer, the nebulizer can contain several pieces:
    - The main unit or compressor
    - The nebulizer kit where the medication is added
    - The tube that connects the main unit with the nebulizer kit
    - Mesh cap
    - Mouth piece to inhale medication through the mouth
    - Nose piece to inhale medication through the nose
    - Mask
    - Air filter

    Note: Always refer to the cleaning instructions as included in the instruction manual of the nebulizer.

    It is recommended to clean the nebulizer kit, mouth piece, nose piece and mask after each use (but necessary after every day of formal use). They can be washed with warm water and a mild detergent. Then, you should rinse them thoroughly with clean hot tap water and allow to air dry in a clean place.

    Disinfection should be done once a week. This can be done by boiling these parts for approximately 10 minutes except for PVC parts (some masks and tubes) which can harden and deform when this is done. Alternatively, use commercially available disinfectant.

    Thoroughly rinse with clean water after disinfection; follow the instructions given by the supplier of the disinfectant.

    The casing of main unit and the tube do not require extensive cleaning, but can of course be cleaned using a soft cloth with water and a mild detergent. Wipe the casing and immediately dry using a soft clean cloth.

    The air filter should not be washed. In case it was to become wet it should be replaced to avoid blockages.

    Specifically, for a Mesh Nebulizer: the mesh cap should be cleaned after each use:
    - Fill the medication container with water and nebulize the water. To prevent medication from drying and adhering to the mesh after use, nebulize the water for 1 to 2 minutes.
    - Then wash the mesh cap in mild (neutral) detergent, and rinse with clean water. Allow to airdry in a clean place.

  • What is the difference between a nebulizer and a humidifier?

    Nebulizers are medical devices that convert liquid medicine into an aerosol, while humidifiers are just used to increase the moist in the ambient when the air is dry (eg when using high heating).

  • What is the difference between the A3 complete and the rest of the compressor nebulizers?

    The A3 complete is a unique 3-in-1 adjustable nebulizer. Thanks to its 3 position settings it adapts the particle size of the medication to target the right part of the airways, while most nebulizers deliver only one particle size and hence target only one part of the airways.

  • Why is the size of the medication droplets delivered by the nebulizer important?

    The particle size of the medication delivered by the nebulizer or MMAD (Mass Median Aerodynamic Diameter) determines where most of the medication will be delivered in the respiratory tract. This is important because, to ensure efficacy of the medication for the different respiratory conditions, it should be delivered in the right part of the airways.

    For example, particles larger than 7.5 micron deposit mainly on the upper airways, while particles smaller than 4.5 micron deposit mainly on the lower airways.

  • What are the benefits of using a nebulizer?

    One of the key benefits of inhalation is the fact that the medication is delivered directly into the respiratory tract, allowing for a high drug concentration in the target area.
    Nebulizing medication can even have a greater clinical effect compared to similar or larger doses delivered orally (tablets) or by subcutaneous injection. Studies have also shown that this can lead to better treatment results than using inhalers alone. 

  • What type of medication can be used with a nebulizer?

    Most medications for the treatment of respiratory diseases of the upper, middle and lower airways are available on a liquid form and can therefore be used with a nebulizer. Nebulizers also allow mixing different medications in the nebulizer chamber, so that they can be inhaled at the same time for a higher convenience. 
    Read more

Didn’t find the answer you were looking for? Contact us via the email: information@eu.omron.com