Occupational Asthma Claims: Understanding Workplace Exposure, Evidence and Compensation

Many people go to work every day without realising that the air they breathe could be damaging their lungs. Occupational asthma is one of the most common work-related respiratory conditions in the UK. It often develops slowly, which makes it easy to dismiss as a cough, a cold or "just one of those things". For those affected, it can mean lost earnings, a changed career and a permanently altered quality of life.

If your asthma has been caused or made worse by your job, you may have grounds to pursue occupational asthma claims. This guide explains what the condition is, how workplace exposure causes it, what evidence matters and how compensation is assessed.

What Is Occupational Asthma?

Occupational asthma is asthma triggered by substances or conditions at work. There are two main forms:

• Sensitiser-induced asthma: The body becomes allergic to a substance over time. After a period of exposure, even tiny amounts can set off symptoms. This is the most common type.
• Irritant-induced asthma: A single heavy exposure, such as a chemical spill or a gas leak, or repeated high-level exposure to irritants damages the airways.

Work-exacerbated asthma is a related situation. You already had asthma, but workplace conditions make it noticeably worse. A claim may still be possible in these circumstances, depending on how much your working environment contributed.

Common Causes of Occupational Asthma

Almost any industry can carry a risk, but certain substances are repeatedly linked to the condition. They include:

• Isocyanates, found in spray paints, foams, adhesives and vehicle repair work
• Flour and grain dust, which affect bakers, millers and food production staff
• Wood dust, particularly from hardwoods and certain softwoods
• Latex, relevant to healthcare, laboratory and cleaning roles
• Welding, soldering and metal fumes
• Cleaning agents and disinfectants, a growing concern in healthcare, care homes and commercial cleaning
• Animal proteins and enzymes, including laboratory animals and detergent manufacturing

Trades with elevated risk include motor vehicle paint spraying, carpentry and joinery, baking, healthcare, hairdressing, manufacturing and construction. If you work with dusts, vapours, sprays or fumes and your breathing is getting worse, it is worth taking seriously.

Recognising the Symptoms

Symptoms of occupational asthma can include:

• Wheezing or a whistling sound when breathing
• Chest tightness
• Shortness of breath
• A persistent cough, especially at night
• Runny nose, sore or watery eyes (often an early allergic sign)

The key clue is the pattern. Symptoms often worsen during the working week, ease on days off or on holiday, and return when you go back to work. Some people notice their breathing deteriorates several hours after leaving work, so the link can be missed. Keeping a simple diary of symptoms against your working days can be genuinely valuable later on.

Early diagnosis matters. Continued exposure after sensitisation can lead to more severe and sometimes permanent lung damage, whereas removal from the trigger early on gives the best chance of recovery.

Your Employer's Legal Duties

UK employers have clear responsibilities to protect workers from harmful substances. The main legal framework includes:

• The Health and Safety at Work etc. Act 1974, which requires employers to ensure, so far as is reasonably practicable, the health and safety of their employees
• The Control of Substances Hazardous to Health Regulations 2002 (COSHH), which require employers to assess risks from hazardous substances, prevent or control exposure, provide suitable equipment and monitor workers' health where appropriate
• The Management of Health and Safety at Work Regulations 1999, which require suitable risk assessments
• The Personal Protective Equipment at Work Regulations, which govern the provision of appropriate protective equipment

In practice, a good employer should carry out COSHH assessments, use safer substances where possible, install effective ventilation or extraction, provide properly fitted respiratory protective equipment, train staff and arrange health surveillance in higher-risk jobs. Where these steps are missing or inadequate, and a worker develops asthma as a result, there may be a case for negligence or breach of statutory duty.

How Occupational Asthma Claims Work

To succeed with occupational asthma claims, you generally need to show three things:

1. Duty of care: Your employer owed you a duty to keep you safe. This is almost always straightforward.
2. Breach of duty: The employer failed to meet the required standard, for example by not assessing risks, not controlling exposure or not providing protective equipment.
3. Causation: That failure caused, or materially contributed to, your asthma.

Causation is often the most contested point, because asthma can have several triggers. This is why specialist legal and medical input is so important.

The Evidence That Strengthens a Claim

Strong evidence makes a significant difference. Useful material includes:

Medical evidence

• GP and hospital records showing when symptoms began and how they progressed
• Specialist respiratory reports confirming a diagnosis
• Peak flow readings taken at work and away from work, which can demonstrate the work-related pattern
• Specific allergy or challenge testing where it has been carried out

Workplace evidence

• Your contract, job description and a record of the tasks you performed
• Safety data sheets for the substances you handled
• COSHH assessments, risk assessments and safety policies (or the absence of them)
• Records of training, equipment issued and maintenance of extraction systems
• Accident book entries and any RIDDOR reports

Personal evidence

• Your symptom diary
• Statements from colleagues who noticed similar problems
• Emails, texts or complaints you raised about ventilation, dust or fumes
• Sickness absence records

Do not worry if you do not have everything. A solicitor can request disclosure of workplace documents and arrange independent medical assessment. What matters is starting the conversation, ideally while records and witnesses are still available.

Choosing Occupational Asthma Solicitors

Not every firm has experience in industrial disease. When looking for occupational asthma solicitors, it helps to ask:

• Do they regularly handle respiratory and industrial disease claims?
• Will they arrange appropriate medical experts and gather technical evidence?
• Do they offer a clear funding option, such as a conditional fee agreement (often called "no win, no fee")?
• Will they explain costs, timescales and risks in plain language?

At JIVA Solicitors, we understand that occupational lung conditions are not only a medical problem. They affect careers, finances and families. A good solicitor will listen to your work history, identify the likely sources of exposure and build the claim methodically, rather than relying on a generic approach.

What Occupational Asthma Compensation Can Cover

Occupational asthma compensation is intended to put you, as far as money can, in the position you would have been in had the harm not occurred. It is usually made up of two parts.

General damages compensate for pain, suffering and loss of amenity. The amount reflects the severity of your condition, how it affects daily life, whether it is expected to improve and whether other conditions are involved. Mild, short-lived symptoms sit at the lower end, while severe, permanent asthma that restricts activity and sleep sits much higher.

Special damages reimburse financial losses, which may include:

• Loss of earnings, past and future
• Reduced earning capacity if you can no longer work in your trade
• Cost of medication, treatment and medical appointments
• Travel expenses
• Care and assistance provided by family or paid carers
• Costs of adapting your home or lifestyle

Because every case differs, it would be misleading to promise a figure here. Your medical prognosis, age, occupation and financial losses all shape the value, and a solicitor can give a realistic assessment once the evidence is reviewed.

Time Limits: Do Not Delay

In most personal injury cases, the usual limit is three years. For industrial diseases such as occupational asthma, the clock typically runs from the date of knowledge. That is when you first knew, or reasonably should have known, that your condition was significantly attributable to your work. The courts do have discretion in some cases, but it should never be relied upon. Getting advice promptly protects your position and helps preserve evidence.

Other Support You May Be Entitled To

A civil claim is not the only route. Occupational asthma may be recognised as a prescribed disease under the Industrial Injuries Disablement Benefit scheme, which is a state benefit separate from any compensation claim. Eligibility depends on the occupation, the cause and the level of disablement. You may also be entitled to statutory sick pay or other benefits. A solicitor can point you towards the right sources of support alongside your claim.

Practical Steps If You Suspect Occupational Asthma

1. See your GP promptly, and tell them clearly about your job and the substances you work with.
2. Ask about a referral to a respiratory or occupational health specialist.
3. Record your symptoms and peak flow readings, noting when and where they occur.
4. Report the problem to your employer or health and safety representative in writing.
5. Keep copies of relevant documents, emails and medical letters.
6. Speak to a specialist solicitor before accepting any settlement or signing anything.

Frequently Asked Questions

Can I claim if I have left the job?
Yes. You can still pursue a claim after leaving, provided it is within the time limit. Your former employer's duties applied while you worked there.

Can I claim if I already had asthma?
Potentially. If workplace exposure caused a worsening or made your condition significantly more severe, compensation may reflect that additional harm.

Will my employer know I am making a claim?
Your employer or its insurer will be notified as part of the process. Employers are legally required to hold insurance for workplace injuries and illnesses, and unfair treatment for pursuing a legitimate claim is not acceptable.

What if my employer has closed down?
It may still be possible to trace the insurer who covered the business at the time. A solicitor can investigate this.

How long does a claim take?
Straightforward cases can conclude in months, while contested or complex cases can take longer. Medical evidence and employer cooperation are the main factors.

Final Thoughts

Occupational asthma is preventable, yet it continues to affect workers across the UK. If you believe your job has damaged your lungs, you are not overreacting by seeking answers. Understanding your employer's duties, gathering the right evidence and acting within the time limits all put you in a stronger position.

If you would like to discuss occupational asthma claims, speak to JIVA Solicitors. Our team can assess your circumstances, explain your options clearly and help you pursue the occupational asthma compensation you may be entitled to.