Air Purifiers for Pollen Designed for Clearer Breathing During Hay Fever Season
Pollen, grass spores, mould particles, and airborne allergens don't stop at your front door. Coway air purifiers with GreenHEPA™ filtration capture 99.99% of pollen allergens down to 0.01 microns — including the ultra-fine pollen fragments that trigger the most severe hay fever reactions.
Independently certified by ECARF. Trusted by over 18 million households worldwide.
Find Your Pollen Air PurifierFind the Right Air Purifier for Pollen
Every Coway model uses proprietary GreenHEPA™ filtration — rated to intercept pollen and its invisible sub-micron fragments before they reach you.
Run your purifier on medium–high during peak pollen hours (5–10 AM) and keep it running overnight — pollen concentrations indoors peak while windows are closed after a high-pollen day.
Why Standard HEPA Falls Short for Pollen Sufferers
Most purifiers stop at 0.3 microns — but the pollen fragments that cause the most severe reactions are far smaller.
Independently certified by ECARF · Verified by the British Allergy Foundation · Tested to BS EN 1822
How an Air Purifier Reduces Pollen Symptoms at Home
Even on a high-pollen day with all windows shut, pollen enters your home on clothing, hair, and skin — then circulates continuously through your air. A Coway unit running 24/7 progressively clears the air, reducing cumulative allergen load and helping your immune system recover between exposures.
You spend 7–9 hours there breathing at rest. A pollen-free sleeping environment significantly lowers overnight inflammation — often the most impactful single change a hay fever sufferer can make.
The UK Pollen Calendar
Indoor allergen levels track the outdoor pollen count — knowing your peak months helps you stay prepared.
What Hay Fever Sufferers Say
Verified reviews from pollen and hay fever sufferers across the UK.
"The functions are amazing, sleep mode is so silent you cannot hear it. It made a massive difference to my son who coughs at night. The first night he didn't cough at all and his coughing now is minimal thanks to this purifier. My son has multiple severe allergies, some of them being cat and pollens and house dust. And this purifier enables us to clear our bedroom or lounge of these and let him breathe safely. I would buy this again and again and recommend it to everyone. It also has fab turbo mode and you can swap the air to come straight or up."
"My partner has all sorts of allergies and suffers a lot, having to take antihistamines etc especially at night in the summer time. We also have cats and ongoing battle with mould in the house. Since using this product I’ve seen a dramatic improvement in my partners symptoms, so I’m sure it works! The amount of dust, cat fur and other nasty things that accumulates on the washable pre filter is disgusting! I regularly vacuum the house so it’s surprising the amount that this collects."
"I got this as we have pets and I have asthma and I am allergic to dust, spores, scents e.g. It came very carefully wrapped from the boxing of the product to the individual filters all in protective packaging. I turned it on and straight away it detected cooking smells and on Auto it started up and turned itself off when air went from red to blue. For those saying it doesnt work … did you take all the wrapping off the filters? Its a modern design and fits nicely against a wall. The air felt so much fresher this morning ( we live near to the sea so home has a sort of beach hut smell generally and close by trees blow pollen in) It clearly removes spores as I didnt have my usual sneezing fit this morning having left it on auto over night."
Dust & Air Purifier FAQs
Everything you need to know before choosing.
Yes — air purifiers are one of the most effective interventions for reducing airborne dust and dust mite allergens. They do not replace vacuuming (which removes settled dust from surfaces), but they intercept particles before they settle and continuously clean what vacuuming misses. Users typically notice visible dust accumulation on surfaces slowing down within 2–4 weeks, and allergy symptoms — particularly morning congestion and itchy eyes — improving within the first 1–2 weeks of bedroom use.
Yes, noticeably so. Airborne dust particles are intercepted before they can settle on shelves, furniture, and electronics. Most users report extending the interval between dusting sessions by 2–4× compared to before. This is especially pronounced in older properties and homes near busy roads, where fine outdoor particulates infiltrate constantly. The effect is strongest when the purifier runs 24/7 rather than only when people are present.
In a typical home, Coway filters last 10–12 months. In a noticeably dusty home (older property, open fireplace, multiple occupants, proximity to construction), plan for 6–8 months. The filter indicator on every Coway model monitors real air quality and alerts you when a replacement is due — there is no need to guess. Coway's Filter Subscription delivers replacements automatically at a 15% discount, calibrated to your actual usage pattern.
Dust mite allergens (Der p 1 and Der p 2 proteins) are just 0.1–2μm in size — well below the 0.3μm threshold of standard HEPA. The Airmega Mighty range, with GreenHEPA™ filtration rated to 0.01μm, is our most effective option for dust mite allergen capture. Place it in the bedroom for maximum benefit, as that is where exposure is highest and most prolonged. Pair it with dust mite mattress and pillow encasements for the strongest combined effect.
Yes. PM2.5 particles from traffic, industry, and cooking penetrate buildings through small gaps even when windows are closed. GreenHEPA™ filtration captures PM2.5 completely. On high-pollution days — typically still, cold winter mornings in urban areas — indoor PM2.5 can actually be higher than outdoor levels if there is no filtration. Running a Coway purifier year-round provides continuous protection against both dust and pollution, not just during visible dust events.
Coway: 35 Years of Cleaner Air
Since 1989, one mission: bringing fresh, healthy air into every home.