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OMRON (C28P) Compressor Nebuliser

OMRON (C28P) Compressor Nebuliser

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  • ✔️ Delivers inhaled medication directly to the airways and lungs
  • ✔️ Suitable for asthma, COPD, bronchiectasis and cystic fibrosis
  • ✔️ Includes adult mouthpiece and child mask for all ages
  • ✔️ Virtual Valve Technology reduces medication waste during treatment
  • ✔️ Quiet 45 dB operation with two-year manufacturer warranty

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What Is a Compressor Nebuliser and How Can It Help You?

 

If you or someone in your family lives with asthma, COPD, or another respiratory condition, getting medication deep into the lungs quickly can make a real difference. The compressor nebuliser from Omron — the C28P model — is a reliable, clinically trusted device designed for exactly that purpose. It converts liquid medication into a fine, breathable mist, allowing it to reach the airways directly. At £58.90, it offers a practical home-use solution that many patients and carers across the UK rely on daily. You can explore other electrical health and diagnostic devices at Cured Pharmacy if you're looking to build a home health kit.

Respiratory conditions affect millions of people in the UK. According to NHS data, asthma alone affects around 5.4 million people. For those who struggle with inhalers — whether due to poor technique, age, or the severity of their condition — a nebuliser can be a genuinely useful alternative or complement to standard inhaler therapy.

 

How Does the Omron C28P Nebuliser Work?

 

The C28P works by using an internal air compressor to force air through a small chamber called a nebuliser cup, which holds your liquid medication. This process breaks the liquid down into tiny aerosol droplets that you inhale through a mouthpiece or mask. The result is a steady, continuous mist that you breathe in slowly and deeply over a treatment session of roughly 5 to 10 minutes.

  • The compressor draws in room air and pressurises it
  • Pressurised air passes through the medication cup via a jet nozzle
  • The liquid medication is atomised into fine inhalable particles
  • You inhale the mist through the mouthpiece or mask at a natural breathing pace
  • Medication is deposited directly into the bronchial airways and lungs

The C28P features Omron's Virtual Valve Technology (VVT), which helps reduce medication waste by ensuring mist is produced during both inhalation and exhalation phases. This makes each treatment session more efficient.

 

Who Should Use the Omron C28P Nebuliser?

 

This device is suitable for a wide range of patients who need inhaled medication delivered reliably at home. It's particularly useful for those who find standard inhalers difficult to use correctly — a common issue in both young children and older adults.

  • Adults and children with asthma requiring regular bronchodilator therapy
  • Patients with COPD who need nebulised salbutamol or ipratropium
  • Individuals with cystic fibrosis or bronchiectasis on prescribed nebulised antibiotics or mucolytics
  • Elderly patients or those with limited hand strength who struggle with pressurised inhalers

Always confirm with your GP or respiratory nurse that nebuliser therapy is appropriate for your condition before purchasing. The NHS recommends that nebuliser use at home should be guided by a healthcare professional.

 

How Does the Omron C28P Compare to Other Home Nebulisers?

 

Feature Omron C28P Mesh Nebuliser (e.g. Omron MicroAIR)
Technology Compressor-driven jet Vibrating mesh
Particle size MMAD ~3.0 µm (fine) MMAD ~3.0–4.0 µm (very fine)
Portability Mains-powered, home use Battery/USB, portable
Price range £58.90 £80–£150+
Noise level Moderate (45 dB) Very quiet
Medication compatibility Most standard nebuliser solutions Most standard nebuliser solutions

 

Is the Omron C28P Suitable for Long-Term Home Use?

 

Yes. The Omron C28P is designed for regular home use and is built to withstand daily treatment sessions. The device comes with a two-year manufacturer's warranty, and replacement parts — including medication cups, mouthpieces, and filters — are widely available. If you're managing a long-term respiratory condition, it's worth discussing a home nebuliser plan with your GP or respiratory team, who can advise on the correct medication, dose, and frequency for your needs.

Keeping the device clean and replacing consumable parts on schedule is essential for maintaining hygiene and ensuring the compressor nebuliser continues to deliver medication effectively. Store the device in a clean, dry location away from dust and moisture when not in use. If you're also managing related conditions such as allergies or hay fever that affect your breathing, you may find our allergy and hay fever range helpful alongside your nebuliser therapy.

This product is a medical device. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Omron C28P Compressor Nebuliser specifications
Treatment category Respiratory therapy / inhalation device
Mechanism of action Compressor-driven jet nebulisation converting liquid medication to inhalable aerosol mist
Effective for Asthma, COPD, bronchiectasis, cystic fibrosis (as directed by clinician)
Suitable for Adults and children (with appropriate mask accessory)
Active ingredient N/A — device only; medication added separately
UK classification Class IIa Medical Device (CE marked)
Preparation Liquid nebuliser solution (prescribed separately)
Route of administration Inhalation (oral/nasal via mouthpiece or mask)
Particle size (MMAD) ~3.0 µm
Nebulisation rate ~0.35 mL/min
Noise level 45 dB
Power supply Mains (AC adapter included)
Warranty 2 years manufacturer's warranty

Specifications of Omron C28P Compressor Nebuliser

 

What Is the Omron C28P and What Is It Used For?

 

The Omron C28P is a home-use compressor nebuliser — a medical device that turns liquid medication into a fine mist for inhalation. It is used to deliver bronchodilators, corticosteroids, and other inhaled medicines directly to the airways and lungs. It is not a medicine itself; the therapeutic effect comes from the medication you place inside it, as prescribed by your doctor.

It is most commonly used for managing asthma, chronic obstructive pulmonary disease (COPD), bronchiectasis, and cystic fibrosis. The NHS notes that nebulisers may be recommended when a patient cannot use a standard inhaler effectively, or when higher doses of inhaled medication are required during an acute episode. If you're also managing upper respiratory symptoms, our ear, nose and throat range may offer additional support.

 

What Do You Need to Know Before Using the Omron C28P?

 

Before using this device, there are important safety considerations to be aware of — particularly regarding the medications you place inside it.

Do not use this device if:

  • You have not been advised by a healthcare professional to use nebuliser therapy
  • The device shows visible signs of damage to the compressor unit or tubing
  • You are unsure which medication or dose to use — always follow your GP's or respiratory nurse's instructions
  • The air filter is blocked or has not been replaced as recommended

Warnings and precautions:

  • Do not use the device near flammable gases or oxygen-enriched environments
  • Keep the device and all accessories out of reach of children when not in use
  • Do not immerse the compressor unit in water — only the medication cup and mouthpiece are washable
  • If your symptoms worsen during or after a treatment session, seek medical advice promptly
  • Patients with severe cardiovascular disease should use nebulised bronchodilators only under medical supervision

Medication interactions (device-related considerations):

  • Some medications should not be mixed in the same nebuliser cup — always check with your pharmacist before combining solutions
  • Nebulised salbutamol may interact with beta-blockers — inform your GP if you are taking both
  • Nebulised corticosteroids used long-term may increase the risk of oral thrush — rinse your mouth after each treatment

 

How Should You Use the Omron C28P?

 

Using the device correctly ensures you get the full benefit of your medication. Follow these steps each time:

  1. Wash your hands thoroughly before handling the device or medication
  2. Assemble the medication cup, mouthpiece or mask, and tubing as shown in the instruction manual
  3. Pour the prescribed amount of liquid medication into the medication cup — do not overfill
  4. Connect the tubing to the compressor unit and the medication cup
  5. Sit upright in a comfortable position and place the mouthpiece in your mouth (or fit the mask securely over the nose and mouth for children)
  6. Switch the device on and breathe in slowly and deeply through your mouth
  7. Continue until the medication cup is empty or mist stops — typically 5 to 10 minutes
  8. Switch off the device, disassemble, and clean all washable parts immediately after use
Indication Age Group Typical Medication Frequency
Asthma (acute) Adults & children Salbutamol 2.5 mg nebuliser solution As directed by GP — up to 4 times daily
COPD Adults Ipratropium 250–500 mcg nebuliser solution 3–4 times daily as prescribed
Bronchiectasis Adults Hypertonic saline or prescribed antibiotic As directed by respiratory team
Cystic fibrosis Adults & children Dornase alfa or tobramycin (prescribed) As directed by specialist

 

What Are the Possible Side Effects of the Omron C28P?

 

The Omron C28P is a device, not a medicine, so side effects are related to the medication used rather than the device itself. However, some effects can occur as a result of the inhalation process.

Common effects associated with nebulised medication:

  • Mild throat irritation or dryness
  • Cough during or after treatment
  • Unpleasant taste from certain medications
  • Mild tremor (particularly with salbutamol)
  • Increased heart rate (tachycardia) with bronchodilators

Less common effects:

  • Oral thrush (candidiasis) with prolonged use of nebulised corticosteroids — rinse mouth after each use
  • Paradoxical bronchospasm — if breathing worsens immediately after treatment, stop and seek medical advice
  • Headache or dizziness in some patients

If you experience chest tightness, worsening breathlessness, or an allergic reaction during treatment, stop immediately and contact your GP or call 999 in an emergency.

 

How Should You Store the Omron C28P?

 

Proper storage keeps the device hygienic and extends its working life. Follow these guidelines:

  • Store the compressor unit in a clean, dry place at room temperature
  • Keep away from direct sunlight, heat sources, and damp environments
  • Ensure all washable parts are completely dry before reassembling and storing
  • Store in the original carry case or a clean, dust-free container
  • Keep out of reach of children at all times
  • Replace the air filter every 6 months or as indicated by the manufacturer
  • Replace the medication cup and mouthpiece every 6 months or sooner if discoloured or damaged

If you're managing multiple health conditions at home, you might also find our electrical health and diagnostic collection useful for monitoring your overall health alongside your nebuliser therapy.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy the Omron C28P compressor nebuliser online in the UK?

You can buy the Omron C28P directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £58.90. Ordering online means it's delivered straight to your door without needing to visit a store. We also stock a wide range of electrical health and diagnostic devices if you need additional home health equipment.

How does a compressor nebuliser work in the body?

A compressor nebuliser uses pressurised air to convert liquid medication into a fine aerosol mist, which you inhale through a mouthpiece or mask. The tiny droplets travel deep into the bronchial airways and lungs, where the medication acts directly on the airway tissue. This makes it particularly effective for conditions like asthma and COPD where getting medication to the site of inflammation quickly matters.

How do I use the Omron C28P nebuliser step by step?

Start by washing your hands, then assemble the medication cup, tubing, and mouthpiece or mask. Add your prescribed liquid medication to the cup, connect the tubing to the compressor, sit upright, and switch the device on — breathing in slowly and deeply until the cup is empty. The whole process usually takes between 5 and 10 minutes.

Is the Omron C28P suitable for children?

Yes, the Omron C28P comes with a child-sized mask accessory, making it suitable for use in children under appropriate medical supervision. You should always follow your GP's or paediatrician's instructions regarding the correct medication and dose for your child. Never use a nebuliser on a child without prior medical guidance.

What medications can I use in the Omron C28P?

The C28P is compatible with most standard nebuliser solutions, including salbutamol, ipratropium bromide, budesonide, and hypertonic saline. You should only use medications that have been prescribed or specifically recommended by your doctor for nebuliser use. Never mix medications in the cup unless your pharmacist or GP has confirmed it is safe to do so.

How long does a treatment session take with the Omron C28P?

A typical treatment session takes approximately 5 to 10 minutes, depending on the volume of medication in the cup and the nebulisation rate of the device. The C28P has a nebulisation rate of around 0.35 mL per minute. Your doctor or respiratory nurse may advise a specific duration based on your prescribed medication volume.

How do I clean the Omron C28P after each use?

After every treatment, disassemble the medication cup, mouthpiece or mask, and tubing, then rinse them thoroughly with warm water and allow to air dry completely before storing. Do not immerse the compressor unit itself in water. The air filter should be replaced every six months, and the medication cup and mouthpiece should be replaced every six months or sooner if they appear discoloured or damaged.

What is the difference between the Omron C28P and a mesh nebuliser?

The Omron C28P is a compressor-driven jet nebuliser that uses pressurised air to aerosolise medication, while mesh nebulisers use a vibrating mesh plate to produce the mist. Mesh nebulisers tend to be quieter and more portable but are significantly more expensive. The C28P is a cost-effective, reliable choice for regular home use where portability is not a priority.

Can I use the Omron C28P for asthma attacks?

The Omron C28P can be used to deliver bronchodilator medication such as salbutamol during an asthma episode, but only if your GP has specifically advised this as part of your asthma action plan. In a severe or life-threatening asthma attack, you should call 999 immediately rather than relying solely on a home nebuliser. Always follow the NHS guidance on managing asthma attacks.

Who is eligible to use a home nebuliser in the UK?

Home nebuliser therapy is typically recommended by a GP, respiratory nurse, or hospital specialist for patients with asthma, COPD, bronchiectasis, or cystic fibrosis who require regular inhaled medication. It is not generally recommended as a first-line treatment — most patients will try inhalers first. If you think you might benefit from a nebuliser, speak to your GP for an assessment.

How often should I replace the parts on the Omron C28P?

Omron recommends replacing the medication cup and mouthpiece every six months with regular use, and the air filter every six months or when it appears grey or discoloured. Tubing should be replaced if it becomes cracked, kinked, or discoloured. Using worn or damaged parts can reduce the efficiency of medication delivery and may pose a hygiene risk.

Does the Omron C28P come with a warranty?

Yes, the Omron C28P comes with a two-year manufacturer's warranty covering defects in materials and workmanship under normal use conditions. This does not cover consumable parts such as the medication cup, mouthpiece, tubing, or air filter. Keep your proof of purchase in case you need to make a warranty claim.

Are there any side effects from using a nebuliser?

Side effects come from the medication used rather than the device itself. Common effects with bronchodilators include mild tremor, increased heart rate, and throat irritation. Long-term use of nebulised corticosteroids can increase the risk of oral thrush, so rinsing your mouth with water after each session is recommended. If you experience worsening breathlessness or chest tightness during treatment, stop and seek medical advice immediately.

Can I use the Omron C28P if I have COPD?

Yes, the Omron C28P is commonly used by people with COPD to deliver bronchodilators such as salbutamol and ipratropium bromide. However, nebuliser therapy for COPD should always be initiated and monitored by a healthcare professional. If you're also managing related conditions, our cold and flu range may help with symptom relief during respiratory infections.

How long can you use the Omron C28P for?

The Omron C28P is designed for long-term home use and, with proper maintenance and regular replacement of consumable parts, can last for several years. There is no fixed maximum duration of use for the device itself — how long you continue nebuliser therapy depends on your clinical condition and your doctor's ongoing assessment. Regular reviews with your GP or respiratory team are important to ensure the treatment remains appropriate for you.

How Should You Use the Omron C28P Nebuliser?

Using the Omron C28P correctly is essential to ensure your medication reaches your airways effectively. Before your first use, read the instruction manual in full and ensure all parts are clean and correctly assembled.

What Is the Correct Dose of Medication for the Omron C28P?

The Omron C28P is a device — it does not contain medication itself. The dose you use depends entirely on what your GP or respiratory specialist has prescribed. Never adjust your medication dose without medical advice, and always use the exact volume and concentration stated on your prescription or as directed by your clinician.

When Is the Best Time to Use the Omron C28P?

The timing of your nebuliser treatment depends on your condition and the medication prescribed. For most patients with asthma or COPD, treatments are scheduled at regular intervals throughout the day — often morning and evening — to maintain consistent airway control. If you are using a bronchodilator before exercise or physical activity, your GP may advise using the nebuliser 15 to 30 minutes beforehand.

Try to use the device at the same times each day to build a routine. Avoid lying flat during treatment, as sitting upright allows the medication to reach the lower airways more effectively.

How Long Can You Use the Omron C28P For?

There is no fixed time limit on using the Omron C28P device itself — it is built for long-term home use. However, how long you continue nebuliser therapy depends on your clinical condition and your doctor's ongoing review. Your GP or respiratory nurse should reassess your treatment plan regularly to confirm that nebuliser therapy remains the most appropriate option for you.

Replace consumable parts — including the medication cup, mouthpiece, and air filter — every six months or sooner if they show signs of wear. A well-maintained device will continue to deliver medication reliably for several years.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Nebulised Medication Used With the Omron C28P?

The Omron C28P is a medical device and does not itself cause side effects. However, the medications delivered through it can produce effects — particularly bronchodilators such as salbutamol and ipratropium. These are generally mild and often settle as your body adjusts to treatment.

  • Mild tremor or shakiness, particularly in the hands
  • Increased heart rate (tachycardia)
  • Throat irritation or dryness
  • Cough during or shortly after treatment
  • Unpleasant or unusual taste in the mouth
  • Headache

What Are the Less Common Side Effects of Nebulised Medication?

Some patients experience less frequent effects, particularly with long-term or high-dose nebulised therapy. These are worth being aware of, even if they don't affect everyone.

  • Oral thrush (candidiasis) — more likely with nebulised corticosteroids such as budesonide; rinse your mouth with water after every treatment to reduce this risk
  • Dizziness or light-headedness
  • Nausea
  • Muscle cramps (associated with high-dose salbutamol)
  • Low blood potassium (hypokalaemia) with prolonged high-dose bronchodilator use — your GP may monitor this with blood tests

What Are the Serious Side Effects You Should Watch For?

Serious side effects are uncommon but require prompt medical attention. Stop using the nebuliser and seek help immediately if you notice any of the following:

  • Paradoxical bronchospasm — a sudden worsening of breathlessness immediately after treatment; this is rare but requires urgent medical review
  • Severe chest pain or palpitations
  • Signs of an allergic reaction — including swelling of the face, lips, or throat, rash, or difficulty breathing
  • Significant drop in blood pressure or feeling faint

If you experience any of these, call 999 or go to your nearest A&E department immediately.

What Should You Do If You Experience Side Effects?

For mild side effects such as throat irritation or tremor, these often improve with continued use and do not usually require stopping treatment. Rinsing your mouth with water after each session can help reduce throat irritation and the risk of oral thrush. If side effects are persistent, troublesome, or worsening, contact your GP or pharmacist for advice — do not simply stop your medication without guidance, as this could worsen your underlying condition.

Keep a note of any new symptoms and when they started, as this information will help your healthcare team assess whether a medication adjustment is needed.

Can the Medications Used in the Omron C28P Interact With Other Medicines?

Yes — the medications used in the nebuliser can interact with other drugs you may be taking. Salbutamol and other beta-2 agonists may have reduced effectiveness if you are taking beta-blockers (such as propranolol or atenolol), and this combination should generally be avoided unless specifically advised by your doctor. Nebulised bronchodilators used alongside diuretics (water tablets) may increase the risk of low potassium levels. Always inform your GP and pharmacist of all medicines you are taking, including over-the-counter products and supplements.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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