Asthma and Air Quality: Protecting Your Breathing

Asthma is a chronic respiratory disease that affects millions of people, both children and adults. While medical treatments are essential for managing the disease, the quality of the air we breathe on a daily basis plays a key role in the frequency and severity of asthma attacks.

Polluted indoor air, invisible allergens, fine particulate matter, and excessive humidity: these are all environmental factors that are often underestimated, yet are essential to asthma management.

What is the link between asthma and air quality? Which pollutants worsen symptoms? And most importantly, how can we improve indoor air quality in a sustainable way so we can breathe easier?

Protech Allergies offers a comprehensive guide to understanding, preventing, and effectively managing allergies.

Understanding Asthma: A Disease Influenced by the Environment

Asthma is a chronic inflammatory disease of the bronchi. In people with asthma, the airways are hypersensitive and react excessively to certain stimuli.

During an asthma attack, the bronchi:

contract,

burst into flames,

produce excess mucus.

Symptoms: wheezing, shortness of breath, chest tightness, and coughing, which can sometimes be severe.

👉 Air quality is a major trigger that can worsen bronchial inflammation.

Why is air quality crucial for people with asthma?

On average, we spend 90% of our time indoors: at home, at school, and at the office. However, indoor air can be up to five times more polluted than outdoor air.

In people with asthma, this prolonged exposure leads to:

an increase in seizures,

a worsening of nighttime symptoms,

a decline in quality of life,

more frequent use of rescue medications.

Improving indoor air quality is therefore a key preventive measure.

The main air pollutants that worsen asthma:

• Biological allergens
• Allergens are among the main triggers of allergic asthma:
• Dust mites: found in bedding, mattresses, and pillows
• Pollen: carried from outside to inside
• Mold: Thrives in Humid Conditions
• Animal dander: cats, dogs, rodents

These allergens cause chronic inflammation of the bronchi.

Fine particulate matter (PM2.5 and PM10)

Fine particulate matter comes from:

from outdoor pollution,

road traffic,

heating,

during cooking,

smoking.

PM2.5 particles, which are extremely fine, penetrate deep into the lungs and are associated with:

an increase in asthma attacks,

a decline in respiratory function,

increased bronchial sensitivity.

Chemical Pollutants and VOCs

Volatile organic compounds (VOCs) are emitted by:

household products,

the paintings,

furniture,

glues,

home fragrances.

They can irritate the respiratory tract and trigger or worsen asthma attacks.

Asthma and Indoor Air: Why the Bedroom Is a Critical Area

The bedroom is a key space for people with asthma:

We spend 6 to 8 hours there each night,

breathing is slower and deeper,

Allergens build up easily.

Bedding, textiles, humidity, and poor ventilation can turn a bedroom into a hotbed of allergens.

👉 A healthy environment promotes restful sleep and reduces nighttime asthma symptoms.

Tips for Improving Air Quality If You Have Asthma
Ventilate Wisely

Ventilation is essential, but it must be properly managed:

ventilate when pollution or pollen levels are not at their peak,

prioritize short, effective aeration,

Avoid venting during peak traffic hours.

Reduce sources of allergens

There are a few simple steps you can take to limit your exposure:

use anti-dust mite covers,

Wash bedding at 60 °C,

limit the use of thick rugs and curtains,

Avoid using air fresheners.

Control Humidity

Excessive humidity promotes the growth of mold and dust mites.

The ideal relative humidity is between 40 and 60 percent.

The Essential Role of Air Purification in Managing Asthma

Despite preventive measures, it is difficult to completely eliminate indoor air pollutants without a suitable filtration system.

Why is an air purifier recommended for people with asthma?

An air purifier allows you to:

• reduce airborne allergens,
• capture fine particles,
• improve breathing,
• reduce the frequency of seizures,
• improve sleep quality.

It is a valuable supplement to medical care, but never a substitute for it.

The HEPA filter: essential for asthma

The HEPA (High Efficiency Particulate Air) filter is the gold standard for people with asthma.

A certified HEPA filter captures:

99.97% of 0.3-micron particles,

dust mites and allergens,

pollen,

mold spores,

PM2.5.

👉 Be wary of “HEPA-type” filters, which are less effective.

CADR: A Key Measure of Effective Air Purification

The CADR (Clean Air Delivery Rate) indicates the volume of purified air per hour.

An inadequate CADR makes purification ineffective.

Useful references:

chamber: 100–200 m³/h,

living room: 300–400 m³/h,

large rooms: ≥ 400 m³/h.

A good air purifier should be able to refresh the air several times an hour.

Activated charcoal: effective against chemical irritants

For people with asthma who are sensitive to odors or chemicals, an activated carbon filter is an excellent complement to a HEPA filter.

It absorbs:

irritating gases,

VOCs,

fumes,

odors.

What technologies should you avoid if you have asthma?

Some technologies can be problematic:

ionization that produces ozone,

poorly regulated air purifiers.

Ozone is a known respiratory irritant and can worsen asthma.

It is therefore essential to choose ozone-free air purifiers that are certified and tested.

Asthma and Air Quality: A Comprehensive Approach Is Essential

Asthma management is based on:

regular medical checkups,

appropriate treatments,

a healthy indoor environment.

At Protech Allergies, we consider air quality to be a fundamental pillar of asthma prevention, just like maintaining clean bedding and reducing household allergens.

Conclusion: Breathe Better to Live Better with Asthma

Asthma is a chronic condition, but its symptoms can be significantly reduced through improved indoor air quality.
Understanding air pollutants, adopting the right habits, and using appropriate air purification solutions can help you breathe more comfortably every day.

Breathing cleaner air means regaining control over your environment and making lasting improvements to your quality of life.