Your guide to buying air purifiers

Choosing an air purifier for your home

Does airborne dust and bacteria aggravate your allergies? By installing an air purifier in your home you will be able to breathe fresh, clean and odour free air whilst you or your family go about your day to day.

Air purifiers do exactly what they say – they clean the air to provide safer and more hygienic spaces. It’s that simple.


What are the differences between types of air purifiers?

First a little bit of science - the most important thing to understand is that all particles around us are ‘charged’ – like a magnet. Allergens – which are responsible for triggering allergic reactions – are ‘positively charged’ and will therefore bond to anything ‘negatively charged’.


Air ionisers operate by generating a steady stream of negatively charged ions that seek out positively charged allergens before pulling them out of the air. They’ll contain special filters to do this. A HEPA Air filter is one of the most effective and a must for asthmatics. It successfully filters 99.97% of dust, bacteria, allergens and mould spores.


For more aggressive air purifiers, look out for ones that use Germicidal UV or TiO2 technology. These use enhanced UV light to destroy micro-organisms such as germs, viruses and bacteria by deactivating their DNA.


Alternatively go for the plasma air purifier which emits both positive and negative ions which helps remove airborne particles and micro-organisms such as bacteria and viruses.


Which air purifier is right for me?

Consider factors such as the size of the room, the level of hygiene you want to achieve and your available budget.


Models with more levels of filtration and features tend to be priced higher, while purifiers with HEPA filters provide the best chance of creating a safe environment for allergy or asthma sufferers.

Replacement filters for HEPA purifiers are not required as often as other models, so you should always factor in whether you need to replace filters and how often. Most filters can be removed quickly and easily and will only require washing or vacuuming to clean.


For added peace of mind, all products face strict tests by the British Allergy Foundation and all those that pass gain the Seal of Approval, something to look out for when purchasing.


Top tip

Keep an eye out for air purifiers that require minimal assembly and do not require you to change the filters.


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