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Allergy Info Centre: Hay Fever and Asthma

 Airbourne Particles and Allergens

Allergies to airborne particles are very common in the UK. Two of the most prevalent allergic diseases in the UK are Hay fever and Asthma.

People can experience allergic reactions to numerous airbourne allergens such as pollen, household dust and smoke.

Hay fever

Hay fever is an allergic reaction to airborne pollen particles that affects around 20% of the UK population. When experiencing hay fever the body's immune system is over reacting to the presence of airborne pollen particles. The time of year that Hay fever affects an individual depends on which pollen they are allergic to. During spring (March to May) tree pollen is most prevalent. During the summer months (May to July) flower and grass pollen is more prevalent.

The common symptoms of hay fever include:

  • Frequent sneezing
  • Runny or blocked nose
  • Red, watery or itchy eyes
  • Itchy mouth, nose and throat.

Reducing the sufferer’s exposure to airborne pollen is a popular method of reducing the impact of hay fever. Filtrete room air purifiers remove up to 99.9% of pollen particles*.

For out more about Filtrete Room Air Purifiers.


Asthma is a long term condition that effects an individuals’ airways that carry air to and from the lungs. During an asthma attack the airways become swollen, making breathing more difficult. Asthma attacks can be triggered by exposure to airborne particles that irritate the airways. Common triggers include:

  • Dust mite debris
  • Pet dander
  • Pollen
  • Tobacco smoke.

Filtrete room air purifiers are up to 99.9% effective at removing pollen and dust mite debris from the air in a room*. They also offer effective filtration of tobacco smoke and pet dander.


Allergy UK
The leading medical charity for people with allergy

NHS Direct
NHS Direct - Hay fever
NHS Direct - Asthma

Medinfo - Hay fever

Asthma UK
Asthma UK - What is asthma?

*captures 99.9% of airborne particles that pass through the filter.


Why use a Room Air Purifier?

 Why use an air purifier

Why purify the air in your home?

There is more to keeping your home clean than just cleaning surfaces like worktops and carpets.