Air Purifiers and Allergies: What They Really Help With

Air purifiers are often sold as an allergy cure. They genuinely help with some triggers and do nothing for others — here is the honest picture.

What a purifier does well

• Airborne pollen during high-pollen seasons, especially in bedrooms.
• Pet dander — light particles that stay suspended and are easily captured.
• Fine dust and smoke particles that irritate airways.
• Mould spores circulating in damp-prone rooms.

What it cannot fix

• Allergens that have already settled into carpets, bedding and soft furnishings — those need cleaning and washing.
• The underlying cause of damp or mould; a purifier treats the air, not the leak.
• Dust mites, which live in fabrics rather than floating in the air.

Getting the most benefit

• Run it in the bedroom overnight — that is where you spend the most continuous hours.
• Keep windows closed while it runs during pollen season.
• Combine it with regular vacuuming and hot-washing bedding.

Used realistically alongside good cleaning, a HEPA purifier can make a noticeable difference to how a room feels. Explore our air purifiers to find one for your bedroom or living room.