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OMRON C801 Compressor Nebuliser

OMRON C801 Compressor Nebuliser

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  • ✔️ Delivers inhaled medication directly to the airways for fast respiratory relief
  • ✔️ Suitable for adults and children with asthma, COPD, and bronchiectasis
  • ✔️ Jet nebulisation technology ensures consistent fine aerosol mist every session
  • ✔️ Includes adult and child masks for flexible use across the whole family
  • ✔️ Compatible with most prescribed nebuliser solutions including salbutamol and budesonide

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What Is a Compressor Nebuliser and How Can the Omron C801 Help You?

 

If you or someone in your family lives with asthma, COPD, or another respiratory condition, getting medication deep into the lungs quickly and efficiently really matters. The compressor nebuliser from Omron — the C801 — is a reliable, clinically trusted home device that converts liquid medication into a fine inhalable mist. It's designed for everyday use at home, making it easier to manage ongoing respiratory symptoms without repeated trips to a clinic. You can browse our full range of electrical health and diagnostic devices at Cured Pharmacy for more home-monitoring options.

Respiratory conditions affect millions of people across the UK. According to the NHS, asthma alone affects around 5.4 million people in the UK, and many require regular inhaled therapy to keep symptoms under control. For those who struggle with standard inhalers — including young children, older adults, or people with severe breathlessness — a nebuliser can make a real difference to daily life.

 

How Does the Omron C801 Nebuliser Work?

 

The Omron C801 uses a compressor mechanism to drive pressurised air through a small volume of liquid medication held in the medication cup. This process — called jet nebulisation — breaks the liquid into tiny aerosol droplets small enough to travel deep into the airways and lungs when you breathe in through the mouthpiece or mask.

  • The compressor pumps air at a controlled flow rate through the nebuliser kit
  • Liquid medication in the cup is atomised into a fine aerosol mist
  • You inhale the mist slowly and steadily through the mouthpiece or mask
  • Medication is deposited directly in the airways, where it acts locally
  • Treatment typically takes 5–10 minutes per session

 

Who Should Use the Omron C801 Nebuliser?

 

This device is suitable for a wide range of patients who need inhaled medication delivered reliably and comfortably. It's particularly useful for people who find standard pressurised metered-dose inhalers (pMDIs) difficult to coordinate, or for those who need higher doses of bronchodilators during acute flare-ups as directed by their GP.

  • Adults and children with asthma requiring regular bronchodilator therapy
  • People with COPD who need frequent nebulised medication
  • Patients with cystic fibrosis or bronchiectasis using nebulised antibiotics or mucolytics
  • Older adults or young children who struggle with standard inhaler technique

 

How Does the Omron C801 Compare to a Mesh Nebuliser?

 

Feature Omron C801 (Compressor) Mesh Nebuliser (e.g. Omron MicroAIR)
Mechanism Jet/compressor driven Vibrating mesh technology
Noise level Moderate Near silent
Portability Mains powered, home use Battery powered, portable
Price range Lower cost (£46.40) Higher cost
Medication compatibility Most standard nebuliser solutions Most solutions; check viscosity

 

Is the Omron C801 Suitable for Long-Term Home Use?

 

Yes. The Omron C801 is designed for repeated home use and comes with replacement accessories including masks and mouthpieces. It's important to clean and maintain the device regularly according to the manufacturer's instructions to prevent contamination and ensure consistent medication delivery. If you're managing a long-term respiratory condition, your GP or respiratory nurse should review your nebuliser therapy periodically to ensure it remains appropriate for your needs. You might also find it helpful to explore our allergy and hay fever range if seasonal triggers are contributing to your respiratory symptoms.

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

Omron C801 Compressor Nebuliser specifications
Treatment category Respiratory therapy / home nebulisation
Mechanism of action Jet nebulisation via air compressor
Effective for Asthma, COPD, bronchiectasis, cystic fibrosis
Suitable for Adults and children (with appropriate mask)
Active ingredient N/A — device only; medication added separately
UK classification Medical device (CE marked)
Preparation Liquid nebuliser solution (prescribed separately)
Route of administration Inhalation
Power supply Mains powered (AC adapter)
Includes Compressor unit, adult mask, child mask, mouthpiece, tubing, medication cup

Specifications of Omron C801 Compressor Nebuliser

 

What Is the Omron C801 and What Is It Used For?

 

The Omron C801 is a home-use compressor nebuliser — a medical device that turns liquid medication into a fine aerosol 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 medication you use inside it must be prescribed or recommended by your doctor.

It is commonly used in the management of asthma, chronic obstructive pulmonary disease (COPD), bronchiectasis, and cystic fibrosis. The NHS recommends nebulisers for patients who are unable to use standard inhalers effectively, or who require higher doses of medication during acute exacerbations.

 

What Do You Need to Know Before Using the Omron C801?

 

Before using this device, it's important to read the manufacturer's instructions carefully and ensure you understand how to assemble, use, and clean it correctly. Always use only medications that have been prescribed or recommended by a healthcare professional for use in a nebuliser.

Do not use this device if:

  • You have not been advised by a doctor or pharmacist to use nebulised therapy
  • The device or any component is visibly damaged
  • You are unsure which medication or dose to use
  • The device has not been cleaned since its last use

Warnings and precautions:

  • Always use the correct nebuliser solution — never use oils or suspensions not intended for nebulisation
  • Keep the device out of reach of children when not in use
  • Do not use near open flames or in oxygen-enriched environments
  • If your symptoms worsen during or after treatment, seek medical advice promptly
  • Regularly replace the air filter and medication cup as recommended by the manufacturer

Drug interactions:

  • No device-specific drug interactions — interactions depend entirely on the medication used
  • Consult your pharmacist or GP if you are unsure whether your prescribed nebuliser solution interacts with other medicines you take

 

How Should You Use the Omron C801?

 

Using the Omron C801 correctly ensures you get the full benefit of your medication. Follow these steps each time you use the device:

  1. Wash your hands thoroughly before handling the nebuliser components
  2. Assemble the medication cup, tubing, and mouthpiece or mask as shown in the instruction manual
  3. Pour the prescribed dose of liquid medication into the medication cup — do not overfill
  4. Connect the tubing to the compressor unit and switch the device on
  5. Hold the nebuliser upright and breathe in slowly and deeply through the mouthpiece or mask
  6. Continue until the medication cup is empty or misting stops (usually 5–10 minutes)
  7. Switch off the device and disassemble all components for cleaning
Indication Age Group Typical Dose Frequency
Asthma (acute) Adults As prescribed (e.g. salbutamol 2.5 mg) As directed by GP
Asthma (maintenance) Children As prescribed by paediatrician As directed by GP
COPD Adults As prescribed (e.g. ipratropium 250–500 mcg) As directed by GP

If you're also managing other health conditions alongside your respiratory symptoms, our cold and flu range may help with associated upper respiratory symptoms during winter months.

 

What Are the Possible Side Effects of the Omron C801?

 

The Omron C801 is a device, not a medicine, so side effects are related to the medication used rather than the device itself. However, some people do experience effects related to the inhalation process. If you experience any of the following, speak to your pharmacist or GP.

Common side effects (related to inhaled medication):

  • Throat irritation or dryness
  • Mild cough during or after treatment
  • Unpleasant taste in the mouth
  • Headache (particularly with bronchodilators)

Less common side effects:

  • Tremor or shakiness (associated with beta-2 agonists such as salbutamol)
  • Increased heart rate (palpitations)
  • Nausea
  • Paradoxical bronchospasm — worsening of breathlessness immediately after inhalation (seek urgent medical advice if this occurs)

 

How Should You Store the Omron C801?

 

Proper storage keeps the device in good working order and prevents contamination between uses. Follow these guidelines:

  • Store the compressor unit in a cool, dry place away from direct sunlight and moisture
  • Keep all components clean and fully dry before storing
  • Store in the original carry case or a clean, dust-free container
  • Keep out of reach of children at all times
  • Do not store near heat sources or in damp environments such as bathrooms
  • Replace the air filter regularly as per the manufacturer's guidance
  • Store liquid medications separately according to their own storage instructions

For other home health monitoring needs, you may also find our electrical health and diagnostic collection useful for managing your health at home.

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 C801 compressor nebuliser online in the UK?

You can buy the Omron C801 compressor nebuliser directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £46.40. Ordering online means it can be delivered straight to your door without needing to visit a shop. It's also worth checking that you have the correct medication prescribed before your device arrives.

How does a compressor nebuliser work in the body?

A compressor nebuliser works by using pressurised air to atomise liquid medication into tiny aerosol droplets small enough to be inhaled deep into the airways and lungs. Once inhaled, the medication acts locally on the bronchial tissue — for example, a bronchodilator relaxes the airway muscles to ease breathing. This method of delivery is particularly effective for people who cannot coordinate standard inhaler use.

How do I use the Omron C801 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, switch it on, and breathe slowly and deeply through the mouthpiece until the cup is empty. After each session, disassemble and clean all components thoroughly before storing.

What medications can I use in the Omron C801 nebuliser?

The Omron C801 is compatible with most standard nebuliser solutions, including salbutamol, ipratropium bromide, budesonide, and saline. You should only use medications that have been specifically prescribed or recommended by your GP or respiratory specialist for nebulised delivery. Never use oils, suspensions, or medications not intended for inhalation in this device.

Is the Omron C801 nebuliser suitable for children?

Yes, the Omron C801 includes a child-sized mask accessory, making it suitable for use in children when directed by a GP or paediatrician. Children's medication doses differ significantly from adults, so always follow your doctor's instructions precisely. If your child is very young or distressed during treatment, speak to your healthcare team about the best approach. You can also explore our baby and toddler range for other child health products.

How long does a nebuliser treatment take with the Omron C801?

A typical treatment session with the Omron C801 takes approximately 5 to 10 minutes, depending on the volume of medication in the cup and your breathing pattern. Breathing slowly and deeply helps ensure the medication reaches the lower airways efficiently. If treatment is taking significantly longer than 10 minutes, check that the device is assembled correctly and the air filter is clean.

How do I clean the Omron C801 nebuliser after use?

After every use, disassemble the medication cup, mouthpiece, mask, and tubing, then wash them in warm soapy water, rinse thoroughly with clean water, and leave to air dry completely before reassembling. Never immerse the compressor unit itself in water or any liquid. The air filter should be checked regularly and replaced according to the manufacturer's schedule to maintain performance.

What is the best time to use the Omron C801 nebuliser?

The best time to use your nebuliser depends on your prescribed treatment plan — your GP or respiratory nurse will advise on timing based on your condition and the medication used. Many people find it helpful to use their nebuliser in the morning to clear airways at the start of the day, or before physical activity if exercise-induced symptoms are a concern. Always follow your doctor's specific instructions regarding timing and frequency.

Who is eligible to use the Omron C801 compressor nebuliser?

The Omron C801 is suitable for adults and children who have been advised by a healthcare professional to use nebulised therapy for conditions such as asthma, COPD, bronchiectasis, or cystic fibrosis. It is not intended for self-diagnosis or self-treatment — you should always have a confirmed diagnosis and a prescribed nebuliser solution before using the device. People with certain cardiac conditions should seek medical advice before starting nebulised bronchodilator therapy.

What are the alternatives to the Omron C801 compressor nebuliser?

Alternatives include mesh nebulisers such as the Omron MicroAIR range, which are quieter, more compact, and battery-powered — making them better suited for travel or use outside the home. Other compressor nebuliser brands such as Pari are also widely used in clinical settings. Your GP or pharmacist can help you decide which type of nebuliser best suits your lifestyle and clinical needs.

How long can you use the Omron C801 nebuliser for?

The Omron C801 is designed for long-term home use, and with proper maintenance it can last for several years. Replacement accessories such as medication cups, masks, mouthpieces, and air filters should be replaced regularly as recommended by the manufacturer to maintain hygiene and performance. Your GP or respiratory nurse should review your nebuliser therapy periodically to ensure it remains the most appropriate treatment for your condition.

Can I use the Omron C801 nebuliser during a severe asthma attack?

If you are experiencing a severe asthma attack — characterised by significant breathlessness, inability to speak in full sentences, or blue lips — you should call 999 immediately rather than attempting to self-treat with a nebuliser at home. Nebulisers at home are generally intended for maintenance therapy or mild-to-moderate exacerbations as directed by your GP. Always follow your personalised asthma action plan and seek emergency help when needed.

Does the Omron C801 nebuliser need a prescription to buy?

No, the Omron C801 compressor nebuliser is a medical device and can be purchased without a prescription. However, the liquid medications used inside it — such as salbutamol nebuliser solution — do require a prescription in the UK. Always ensure you have the appropriate medication prescribed by your GP before using the device.

What should I do if the Omron C801 stops producing mist?

If the device stops producing mist, first check that all components are correctly assembled and that the tubing is not kinked or blocked. Check and replace the air filter if it appears dirty, as a clogged filter is a common cause of reduced mist output. If the problem persists after checking these points, consult the manufacturer's troubleshooting guide or contact Omron customer support.

What are the latest guidelines on nebuliser use for asthma in the UK?

NICE guidelines (NG80) and NHS guidance recommend that nebulisers for asthma should generally be reserved for patients who cannot use standard inhalers effectively, or for acute exacerbations requiring higher doses of bronchodilators. Regular review by a GP or respiratory specialist is recommended to ensure nebuliser therapy remains appropriate. For general respiratory health support, you may also find our ear, nose and throat range helpful for managing associated upper airway symptoms.

How Should You Use the Omron C801 Nebuliser?

Using the Omron C801 correctly every time ensures you receive the full dose of your prescribed medication. Before you begin, always wash your hands and check that all components are clean and dry from the previous session.

What Is the Correct Dose of Medication for the Omron C801?

The Omron C801 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 dose without medical advice, and always use the medication in the concentration and volume specified on your prescription.

When Is the Best Time to Use the Omron C801 Nebuliser?

The timing of your nebuliser treatment should follow your GP's or respiratory nurse's instructions, as this will be tailored to your specific condition and medication. Many people find morning treatments helpful for clearing airways at the start of the day, while others may be advised to use their nebuliser before exercise or at bedtime to manage overnight symptoms.

If you are using more than one type of nebulised medication, your healthcare team will advise on the correct order and timing — for example, a bronchodilator is typically given before a corticosteroid or antibiotic nebuliser solution.

How Long Can You Use the Omron C801 Nebuliser For?

The Omron C801 is designed for long-term home use. With regular cleaning and timely replacement of consumable parts — including the medication cup, masks, mouthpiece, and air filter — the device can remain in reliable working order for several years. Your GP or respiratory nurse should review your nebuliser therapy at least annually to confirm it remains the most appropriate treatment for your condition.

If you notice a reduction in mist output, unusual noise, or any visible damage to the device, stop using it and contact the manufacturer or your pharmacist for advice before continuing treatment.

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

What Are the Most Common Side Effects of Using a Nebuliser?

The Omron C801 is a medical device and does not itself cause side effects. However, the medications delivered through it can cause reactions, and the inhalation process itself may occasionally cause minor irritation. The most commonly reported effects are mild and often settle as your body adjusts to treatment.

  • Throat dryness or irritation after inhalation
  • Mild cough during or immediately after treatment
  • Unpleasant or bitter taste in the mouth
  • Headache, particularly with bronchodilator medications
  • Slight hoarseness of voice

What Are the Less Common Side Effects of Nebulised Medication?

Some people experience less common effects that are typically related to the specific medication being nebulised rather than the device itself. These are more likely with higher doses or more frequent use.

  • Tremor or shakiness of the hands (associated with beta-2 agonists such as salbutamol)
  • Increased heart rate or palpitations
  • Nausea or feeling of unease
  • Dizziness or light-headedness
  • Muscle cramps (with prolonged bronchodilator use)

What Are the Serious Side Effects to Watch For?

Serious side effects from nebulised therapy are uncommon but require prompt medical attention if they occur. Paradoxical bronchospasm — where breathing becomes worse immediately after inhalation rather than better — is a rare but important reaction that requires you to stop treatment and seek urgent medical advice. Severe allergic reactions to nebulised medications, including swelling of the face, lips, or throat, are also rare but constitute a medical emergency; call 999 immediately if this occurs.

If you experience chest pain, a very rapid or irregular heartbeat, or a significant drop in blood pressure during or after nebulisation, stop treatment and contact your GP or call 111 without delay.

What Should You Do If You Experience Side Effects?

For mild side effects such as throat irritation or a dry mouth, rinsing your mouth with water after each treatment session can help. If you are using an inhaled corticosteroid through the nebuliser, rinsing is particularly important to reduce the risk of oral thrush. For more troublesome or persistent side effects, speak to your GP or pharmacist — they may be able to adjust your medication dose or suggest an alternative formulation.

Never stop your prescribed nebuliser medication abruptly without speaking to your doctor first, as this could cause your respiratory condition to worsen.

Can the Medications Used in the Omron C801 Interact With Other Medicines?

The Omron C801 device itself has no drug interactions. However, the medications used inside it — such as salbutamol, ipratropium, or budesonide — can interact with other medicines you may be taking. For example, beta-blockers can reduce the effectiveness of salbutamol, and some diuretics may increase the risk of low potassium levels when used alongside high-dose bronchodilators. Always inform your GP and pharmacist of all medicines you are taking, including over-the-counter products and supplements, before starting nebulised therapy.

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

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Content last updated: 31 Mar 2025

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