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The best air purifiers to keep you sniffle-free at home

The best air purifiers for allergies

Last updated: 18.06.2023 Reading time: 16 Min.

We spend 90% of our time indoors. What most people don't know is that indoor air can be up to 5 times more polluted with airborne contaminants and allergens than outside.

Dust, pollen, dust mites, animal hair... For some people, the mere mention of such terms will probably make their nose run. Because these microscopic particles are causing more and more allergic reactions. 🤧

Don't worry, because HEPA air purifiers can significantly reduce most of these allergens at home. But there are certain features these appliances need in order to deliver that promise.

We have tested and reviewed the best air purifiers for allergies. Find out which models are on the market, what they have to offer and what additional functions the devices have right here in our air purifier review. ⏬

best air purifiers
  • Dyson
    Purifier HEPA Cool Formaldehyde
    Price from   £ 799
    Dyson's flagship product from 2021, the Purifier Cool Formaldehyde is a powerful 2-in-1 device (air purifier and tower fan). The additional formaldehyde filter and sensor are a new feature, so this is a premium combination device for all-year-round.
    Dyson
    Purifier HEPA Cool Formaldehyde
    Dyson's flagship product from 2021, the Purifier Cool Formaldehyde is a powerful 2-in-1 device (air purifier and tower fan). The additional formaldehyde filter and sensor are a new feature, so this is a premium combination device for all-year-round.

Advantages

  • State-of-the-art technology
  • Monitoring air quality with sensors
  • Different functions in addition to air purification
  • Smart household helpers with user-friendly app
  • Effective air purification with HEPA and activated carbon filters
  • Refreshing fan function
  • Intuitive control via remote control
  • Energy-saving air cleaners and fans

Disadvantages

  • Moderate purchase prices
  • High maintenance costs due to filter replacement
  • Partly too bulky for mobile use

Most important points at a glance

Must-have features of air purifiers for allergies:

  • HEPA filter
  • Suitable fan power for the room size
  • Washable pre-filters
  • Quiet background noise
  • Low power consumption
  • Series 2000i AC2889/60
    Price from   £ 449
    Philips Series 2000i AC2889/10 air purifier removes up to 99.99% of viruses and aerosols from the air and is especially suitable for allergy sufferers and smokers. Maximum room size 79m².
    Series 2000i AC2889/60
    Philips Series 2000i AC2889/10 air purifier removes up to 99.99% of viruses and aerosols from the air and is especially suitable for allergy sufferers and smokers. Maximum room size 79m².
    Price from £ 449
  • Purifier HEPA Cool Formaldehyde
    Price from   £ 799
    Dyson's flagship product from 2021, the Purifier Cool Formaldehyde is a powerful 2-in-1 device (air purifier and tower fan). The additional formaldehyde filter and sensor are a new feature, so this is a premium combination device for all-year-round.
    Purifier HEPA Cool Formaldehyde
    Dyson's flagship product from 2021, the Purifier Cool Formaldehyde is a powerful 2-in-1 device (air purifier and tower fan). The additional formaldehyde filter and sensor are a new feature, so this is a premium combination device for all-year-round.
    Price from £ 799
  • Pure Humidify+Cool
    Price from   £ 749 £ (799 )
    The Dyson Pure Humidify+Cool is an absolute premium combination device. The model purifies the air and is a hygienic humidifier and fan at the same time. The Dyson Link app rounds off the smart all-rounder in a first-class way!
    Pure Humidify+Cool
    The Dyson Pure Humidify+Cool is an absolute premium combination device. The model purifies the air and is a hygienic humidifier and fan at the same time. The Dyson Link app rounds off the smart all-rounder in a first-class way!
    Price from £ 749 (£ 799 )
  • LV-PUR131s
    Price from   £ 29.99 £ (159.99 )
    Good value for money, the Levoit LV-PUR131s is equipped with a HEPA combination filter and an activated carbon filter. Smart control via the VeSync app is possible, with sleep mode, auto mode and timer.
    LV-PUR131s
    Good value for money, the Levoit LV-PUR131s is equipped with a HEPA combination filter and an activated carbon filter. Smart control via the VeSync app is possible, with sleep mode, auto mode and timer.
    Price from £ 29.99 (£ 159.99 )

Find out more about our favorites now

Best overall 🏆

Philips Series 2000i AC2889/60

Philips Series 2000i AC2889/10 air purifier removes up to 99.99% of viruses and aerosols from the air and is especially suitable for allergy sufferers and smokers. Maximum room size 79m².

The AC2889/60 from Philips is an air purifier with a powerful performance. The device monitors air quality with air quality sensors and reacts to air changes in auto mode. The specially developed 'Allergy Mode' is even more sensitive to airborne allergens.

This white, shiny household helper is a visual eye-catcher. The coloured LED ring not only makes the device look modern, but also signals the current air quality at the same time.

The Philips Series 2000i AC2889/10 air purifier stands on a table and the LED colour ring glows blue.

Colour ring symbolises your air quality

The colours have the following meanings for the indoor air:

Colour of the colour ring Air quality indicator on the display (Indoor Allergen Index IAI) Significance for general air quality
Blue 1 - 3 Good
Blue - Purple  / Magenta 4 - 6 Medium
Purple 7 - 9 Bad
Red 10 - 12 Very bad

The Philips Series 2000i AC2889/10 air purifier stands on a table and the colour ring lights up magenta and the display shows the air quality of 4.

The air quality indicator lights correspond to the allergen level and is constantly measured by a sensor located on the side of the unit.

This high-quality sensor scans the air 1000 times per second to precisely detect ultra-fine particles. 

Intelligent household helper with automatic modes

The smart household helper independently adjusts its airflow speed to the measured values in one of the 3 automatic speed settings:

  • Auto mode (regulates the fan based on the measured air particles)
  • Allergen mode (unique mode that is even more sensitive to airborne allergens and allows the fan speed to operate at a higher level)
  • Bacteria and virus mode (increases the power level even more to circulate the airflow through the filters faster)

Of course, you can also select the level manually (level 1-3 and Turbo), the Philips air purifier still monitors the indoor air quality, but no longer reacts automatically to changes.

Philips AC2889/60 filtration system

The model is equipped with 3 different filter units:

  • 1 prefilter
  • 1 NanoProtect HEPA filter
  • 1 activated carbon filter

The Philips Series 2000i AC2889/10 air purifier is open and the NanoProtect HEPA filter is inserted and the activated carbon filter is next to it.

The Philips Series 2000i AC2889/10 air purifier is open and the activated carbon filter is inserted and the pre-filter is next to it.

NanoProtect HEPA filter

The HEPA filter captures 99.97% of microscopic and harmful air particles down to a size of 0.003 micrometres in our living room air.

These include various types of contaminants such as viruses (influenza and coronavirus strains), bacteria, VOCs (volatile organic compounds) and dust particles.

Allergens such as house dust, pollen, mould spores, dust mites (and dust mite droppings) and pet dander are also removed by this filter.

The Philips HEPA filter is comparable in efficiency to a standardised H13 class HEPA filter.

Philip’s NanoProtect HEPA filters effectively combat allergens, particles and viruses and are certified by the European Centre for Allergy Research Foundation.

Activated carbon filter

The active carbon filter absorbs air pollutants in gas form

In addition, the activated carbon granules absorb odours and fragrances and neutralise them.

Continuous operation

Philips carries out stringent service life and durability tests on its air purifiers. During these tests, it was found and validated that the units are designed for continuous operation for at least 3 years.

Consequently, the Philips model is also ideally suited for the office, business or classroom at school.

Check Amazon*

Advantages

Removes up to 99.97% of contaminants from air

Well suited for middle-sized and larger rooms up to 79 m²

"AeraSense" technology monitors air quality in real time

3 automatic modes (Auto, Allergen and Bacteria mode)

Unique allergen management

H13 HEPA filter

User-friendly app (Clean Home+)

Disadvantages

Quite heavy at 7.7kg

Relatively loud at higher settings

No manually operable remote control

Quiet operation

Dyson Purifier HEPA Cool Formaldehyde

Dyson's flagship product from 2021, the Purifier Cool Formaldehyde is a powerful 2-in-1 device (air purifier and tower fan). The additional formaldehyde filter and sensor are a new feature, so this is a premium combination device for all-year-round.

The HEPA Purifier Cool Formaldehyde purifies the air while refreshing it with a cool breeze. With 4 sensors, the device checks the quality of the air in real time and automatically reacts to poor air quality. Depending on the power level, the fan can refresh you with up to 290 litres of air per second. 🍃

The beautiful and slim model from Dyson is a state-of-the-art 2-in-1 device. It combines an air purifier and a tower fan in one.

The 2021 flagship is equipped with an efficient filtratoin system consisting of 3 filters:

  • HEPA filter (class H13),
  • Activated carbon filter and
  • a catalytic filter

The combination filter (HEPA and activated carbon filter), the catalytic filters and the air grilles of the Dyson Purifier Cool Formaldehyde face each other on a shelf.

The HEPA and activated carbon filter are a necessary requirement in an air purifier for allergy sufferers.

Because these two filter units can remove most allergens from the air.

The filter units and the entire unit are sealed. This means that the dirt sucked in cannot get back into the air.

The additional catalytic filter decomposes formaldehyde gas into water and CO₂.

The catalytic filter units of the Dyson Purifier Cool Formaldehyde stand on a shelf.

This harmful gas is increasingly suspected as a cause of asthma and allergic reactions.

The air purifier knows your air, down to the last detail!

The model is equipped with 4 sensors in the base of the unit. Consequently, the indoor air is continuously monitored and measured for various values:

  • The particle sensor measures the particle concentration in your home with a laser (this includes e.g. fine dust and most allergens).
  • A gas sensor monitors contamination in gas form.
  • The formaldehyde sensor precisely detects formaldehyde in the air.
  • Furthermore, the air humidity and the room temperature are recorded with a sensor.

The 4 inlets to the air quality sensors of the Dyson Purifier Cool Formaldehyde TP09 air purifier and tower fan. You can view the readings at any time on the display of the air purifier or in the Dyson Link app.

The display of the Dyson Purifier Cool Formaldehyde air purifier shows different readings and information about the air quality.

The app will also let you know whenever the indoor air quality in your home deteriorates.

The Dyson Link app shows different progressions of the measured values (air quality and VOC) with time.

This way you can prepare yourself better and, for example, adjust the air purifier for high-pollen periods. It can be very helpful especially with hay fever.

Fan function 

The air purifier can only remove allergens that are suspended in the air. However, as soon as they have settled on the floor or furniture, most devices have difficulties with them.

The Dyson Purifier Cool Formaldehyde has a refreshing fan function and a powerful air flow of up to 290 litres per second.

In addition, the model can rotate up to 350° and thus distribute the air better in the room. Here you can see the rotation in action 🎬:

 

The air purifier significantly stimulates the air circulation in the room and can thus more easily rid the entire room of allergens.

Our verdict

If you're looking for a stylish air purifier for small and medium sized rooms, you'll find it with the HEPA Cool Formaldehyde purifier by Dyson. 🤩

The model very reliably detects and cleans any allergens in the air, and in addition the device acts as a refreshing fan... What more could you want?

Check Amazon*

Advantages

High airflow rate for cooling fan function

Clean air possible without fan - diffuser mode makes this possible

3 filters to combat air pollution

Various sensors for air monitoring and contamination measurement

Operates quietly on regular settings

Many functions in the app

Exceptional design

Disadvantages

Not exactly for bargain hunters

Quite loud in higher settings due to the fan

Replacement filters not so affordable

Stylish design

Dyson Pure Humidify+Cool

The Dyson Pure Humidify+Cool is an absolute premium combination device. The model purifies the air and is a hygienic humidifier and fan at the same time. The Dyson Link app rounds off the smart all-rounder in a first-class way!

This air conditioner is first class and innovative. It monitors your air quality and reacts automatically to impurities! By also measuring and automatically regulating humidity, it can prevent and alleviate allergic reactions.

This premium air purifier from Dyson combines the following 3 devices in one:

  • Air purifier
  • Humidifier and
  • Fan.

The Dyson Pure Humidify+Cool air purifier, fan and humidifier stands on the floor in front of a wall.

Due to the variety of functions, the filters, the hygienic air humidification as well as the power, the model is ideally suited for allergy sufferers.

Two highly efficient 180° multifilters

In the Pure Humidify+Cool there are two 180 degree multifilters, which consist of:

The two filter units of the Dyson Pure Humidify+Cool PH01 stand opposite each other on a table.This filter combination is capable of removing 99.95% of airborne particles down to a size of 0.1 microns.

This includes any allergens such as fine dust, pollen, ordinary house dust as well as dust mites and mould spores.

Meanwhile, the activated carbon filter removes gases and unpleasant odours.

As you can see, the air purifier ensures that you can breathe freely 😤.

Humidity creates a healthier indoor climate

Dry skin, irritated mucous membranes and a chesty cough are not uncommon results of excessively dry air.

Allergy sufferers in particular suffer from the consequences of persistent dry air indoors.

Fortunately, the Pure Humidify+Cool not only purifies the air, but the device is also an effective and hygienic humidifier at the same time.

The model has a water tank with a capacity of 5 litres.

The water tank of the Dyson Pure Humidify+Cool PH01 air purifier

A full tank lasts for up to 7 days of air humidification, depending on demand.

But even when the tank is empty, the smart household helper continues to clean the air unhindered. 

It will only remind you to refill the water tank to be able to use the air humidifier function again.  

What else makes the function so special?

Dyson has integrated two systems that ensure that every drop of water that leaves the device is as clean as the air. 🙂

Because the 3-in-1 all-rounder contains:

  • Dyson's Ultraviolet Cleanse technology and
  • a biostatic evaporator with silver strands.

The biostatic evaporator of the Dyson Pure Humidify+Cool PH01 air purifier is located inside the unit.

With these technological aids, 99.9% of bacteria, viruses and germs are removed from the water

The fan - not only pleasant, but also useful for allergy sufferers

The Pure Humidify+Cool's fan features an impressive airflow rate of up to 290 litres of air per second.

The device has no visible rotary blades and instead provides small air slots (oscillators) that rotate at different angles.

Arrows show the air slots (oscillators) of the Dyson Pure Humidify+Cool PH01 air purifier.

This is not only visually beautiful, but also safer for our small and curious children and pets. 🐶👶

If allergens are in the air and settle on the furniture or the floor, the air purifier cannot filter them.

The fan of the Pure Humidify+Cool contributes significantly to raising the air circulation in the room and consequently filtering it more easily.... 

... so that only a smaller proportion of the air particles have the opportunity to remain in place.

Our verdict

The Pure Humidify+Cool is an absolute premium air purifier with additional functions such as air humidification and fan.

The device measures and detects air impurities and also keeps the air humidification constant at your desired level. The model regulates the whole process independently and automatically on the basis of your defined settings.

The smart household helper is designed for a small to medium room size. Due to the acceptable air rate, the unit is also suitable for offices or commercial use such as doctors' surgeries.

Check Amazon*

Advantages

3-in-1 combo device: air purifier, humidifier and fan

Hygienic humidifying with UV light

HEPA H13 and activated charcoal filters

Cooling effect

Powerful air flow at max level

Breeze mode imitates fresh air

Disadvantages

Quite expensive

Heavy (unsuitable for mobile use)

Top bargain 💸

Levoit LV-PUR131s

Good value for money, the Levoit LV-PUR131s is equipped with a HEPA combination filter and an activated carbon filter. Smart control via the VeSync app is possible, with sleep mode, auto mode and timer.

The small air purifier from Levoit is an affordable alternative. The model is equipped with an efficient HEPA-H13 filter and modern functions (app). Due to its size and performance, this device is more suitable for the bedroom or home office.

The box-shaped device from Levoit comes equipped with some good technical features, making it a good choice for cheap air purifiers for allergy sufferers.

The LV-PUR131s comes with a separate H13 class HEPA filter unit and an additional activated carbon filter.

The HEPA filter is used in the Levoit LV-PUR131s air purifier.

The activated carbon filter is used in the Levoit LV-PUR131s air purifier.

There is also a pre-filter on the HEPA filter unit which traps larger particles and protects the HEPA filter from clogging too quickly.

The Levoit model manages to eliminate up to 99.97% of all airborne particles and allergens down to a size of 0.3 microns.

Smart features 

The unit uses a sensor to measure the particle content of the air and can independently adjust its fan power to the level of contamination in automatic mode.

The air sensor for measuring air pollution from the Levoit LV-PUR131s air purifier.

You can read the air quality on a small display by means of a coloured indicator.

Here are the meanings of the colours:

Colour Air quality Fan speed in auto mode
Blue 🔵 Very good Lowest setting / idle mode
Green 🟢 Good Slow
Yellow 🟡 Medium Medium
Red 🔴 Bad High

The air quality indicator on the display of the Levoit LV-PUR131s air purifier lights up blue.

In addition, you can also track the values in a clear app display. 

The free VeSync app can be connected to the model. Here you get clear data on your indoor air quality and can conveniently control the air purifier remotely.

Our verdict

The Levoit LV-PUR131s is a smart air purifier with efficient filters and therefore well suited for allergy sufferers. We recommend this budget air purifier for small rooms up to a size of 20m².

Check Amazon*

Advantages

Very quiet

Powerful

Energy-saving

Quite affordable

Cheap replacement filters

H13 HEPA filter

Intuitive control via the app

Disadvantages

Design takes getting used to

Relatively short filter lifespan

The comparison of our air purifier favourites for allergy sufferers

Model Philips AC2889/60 Series 2000i Dyson Purifier Cool TP09 Dyson Pure Humidify+Cool PH01 Levoit LV-PUR131s
HEPA filter H13 Yes Yes Yes Yes
Activated carbon filter Yes Yes Yes Yes
Fan No Yes Yes

No


Humidifier No No Yes

No


Room size 30 m² 40 m² 40 m² 20 m²
App / WiFi Yes Yes Yes Yes
Auto mode Yes Yes Yes Yes
Sleep timer Yes Yes Yes Yes
Remote control No Yes Yes No
Maintenance effort low medium high low
Weight 7.7 kg 4,65 kg 8,29 kg 5,2 kg
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What features should an air purifier for allergies have?

If you suffer from allergic reactions, in addition to keeping your home clean, you should also keep the air indoors free of allergens.

Air purifiers are the perfect household helpers for this purpose. But they should have the following features so that you can breathe freely:

  • HEPA filter
  • Activated carbon filter
  • Easy filter replacement and maintenance
  • Sensors for measuring the ambient air
  • Smart app for timer overview and planning

Fortunately, air purifiers have evolved tremendously in recent years and many of the modern devices nowadays come with the features mentioned above.

We explain what exactly is important with regard to the points mentioned. 🧐

The all-important HEPA filter

Indoor air contains microscopic particles which can cause allergic reactions when inhaled.

The particles are so small that they are not visible to the naked eye. Some allergens are even smaller than 2.5 microns.

For comparison: One micron (µm) corresponds to 0.0001 cm. Which is still hard to imagine...

The H13 HEPA filter units of the Dyson Pure Cool air purifier and tower fan stand on a table.

HEPA filters are capable of absorbing and trapping these microscopically small air particles (ultrafine dust, dust particles, pollen, mite droppings, mould spores and animal hair/aerosols) from the air.

This way, allergens are sealed in the HEPA filter and cannot get back into the air.

Activated carbon filter as additional protection

In combination with the HEPA filter, the activated carbon filter provides additional protection against allergens that the HEPA filter cannot capture.

This is because they are present in gaseous form in the air. The activated carbon granules in the filter absorb the pollutants and trap them.


The activated carbon filter is used in the Philips AC2889/60 Series 2000i air purifier.

This allows these models to even protect you from cigarette smoke and car exhaust fumes.

Another positive effect: In addition, the activated charcoal filter neutralises unpleasant odours such as kitchen fumes.

Allergy-friendly maintenance

In order for the air purifier to be really efficient in ridding the room of allergens, the device should be in constant operation for long periods of time.

This means that the household helpers, like any other piece of furniture or electrical appliance, will gather some dust and dirt. Filtration systems in particular are a potential danger for allergy sufferers after a while. 🤧

A used HEPA filter from the Dyson Purifier Cool Formaldehyde TP09 stands on a shelf.
Even after a short time, the filter unit picks up a lot of dust and dirt.

So it’s all the more important that both the maintenance of the appliance and the filter changing system are designed to be as allergy-friendly as possible.

Fortunately, manufacturers have addressed these circumstances and have taken certain precautions such as tabs on the filter units.

The filter unit of the Dyson Pure Cool Me BP01 is pulled out by the tab.

This way, you can avoid coming into direct contact with the dust and allergens sitting on the filter.

The rest of the maintenance is relatively harmless for allergy sufferers, you only have to wipe the model from the outside and keep it clean from the inside after you have removed the filters.

We recommend a thorough cleaning at least every 2 months. This takes no more than 10 minutes for most devices and is very simple.

The air outlet of the Dyson Pure Hot+Cool HP04 is cleaned with a cloth.

The air grille of the Dyson Pure Hot+Cool HP04 air purifier is cleaned with a cloth.

Additional maintenance tips for allergy-sufferers

Tried and tested in pandemic times and always available - the face mask. 😷

Sometimes when you want to clean the inside of the unit or have to change the filter, you will come into contact with a filter at full capacity.

So it’s helpful to just put a face mask on when you’re handling the air purifier.

A person has an air purifier in his hand and wears a respirator mask

Since 2020, we have plenty of masks lying around and are used to using them.

If you remove the filter units, wearing a mask will add extra protection to your respiratory tract from the allergens in the filter.

Disposable gloves and thorough hand washing

Gloves are another protective option for cleaning. They allow you to safely handle the fully vacuumed filters and dispose of them after the service life of the units has expired.

Attention: Neither the HEPA filter nor the activated carbon filters in air purifiers can be cleaned and reused. After the time has expired, they must be replaced with new filters.

Make sure to wash your hands thoroughly after cleaning and after touching the filters.

Sensors that measure and analyse air pollution

Modern air purifiers are equipped with different sensors to measure and detect the particle content of the air as well as air pollution.

Some of the devices recognise your ambient air down to the last detail and are therefore true air experts in your living room. 🤓


The Dyson Purifier Cool Formaldehyde air purifier shows the compounds and contaminants measured by the sensors.

Sensors on premium models even detect what kind of contamination is involved.

The sensor of the Dyson Purifier Cool Formaldehyde TP09 transmits measured values to the display.
© Dyson

Automatic mode on air purifiers

The models that are equipped with sensors almost all have an automatic mode integrated.

In automatic mode, the unit reacts automatically to the air pollution in your home.

Consequently, the smart household helper measures the air pollution and adjusts its performance according to the measured values.

This allows the air purifier to react automatically at periods of high pollen count and ensure clean air and a pleasant indoor climate... All by itself! You can lean back and breathe freely. 😌

Air treatment with smart app functions

Most air purifier manufacturers have proprietary apps.

The apps offer a variety of information. For example, you can:

  • Find detailed information on your air quality 💡
  • Get facts and figures on the air purifier and filter life 🧐
  • Control the unit itself 🕹

An additional practical function is the programming of operating schedules. This way you can fully adjust the air purifier to the daily pollen count.

In the countryside, pollen counts are lowest between 7pm and midnight, and in the city between 6am and 8am.

Then you can programme the smart household helper to switch on by itself at a desired time, operate at the desired level for a period of time and go back into standby mode by itself once the programme ends.

Programming the timer in the Dyson Link app with time and air purifier function.

This function is particularly helpful to make busy, stressful like a bit easier.✅.

Find the right unit for your room

Another important factor is to adjust the filter and air purifier performance to the desired room size.

This is because a low-performance air filter is less effective in large rooms than in small ones.

How do I find the right size HEPA air purifier for my room?

Most brands specify a room size for their models. Unfortunately, this information cannot be relied on 100% because it is based on the manufacturer's own tests.

In addition, there is the CADR (Clean Air Delivery Rate) specification.

You should note that the air in your room will pass through the air purifier filters several times an hour.

You can use these two values as a guide to find the right household helper for combating allergens for your room size.

Should an air purifier run continuously?

Basically, an air purifier is effective when it is in constant operation for long periods of time. Only then can it filter allergens (house dust, pollen, dust mites) efficiently.

It goes without saying that the household helper is of little use to you in your bedroom if you yourself are only in there in the evening/at night.

So it’s all the more important that the air filter runs at a high performance level during periods of high pollen counts.

In the city, exposure to pollen tends to be highest in the evening. In the countryside, on the other hand, the most active time is in the morning.

As explained above, you can optimally schedule the operating times of the unit with timers. As a result, the unit does not have to work around the clock when you are not in the room.

How much electricity does an air purifier consume?

Also important to note is that you don't have to worry about the electricity costs of these devices. In our tests, we examined the power consumption of some of the devices and, in our experience, the devices generally don’t consume too much power.

We found that the smart household helpers have a comparable energy requirement to a smaller laptop.

Different air purifiers are located on the power consumption scale. The arrow indicates low power consumption.

To break it down: If the air purifier is used in your home for 8 hours a day, the annual consumption will cost you on average no more than 1 visit to your favourite local Italian restaurant. We think that's a good deal. ✅

How loud are air purifiers?

We tested several air purifiers and let them operate at different levels for longer periods of time.

In our experience, the devices are pretty quiet household helpers.

Basically:

  • Low fan speed ▶ Low noise level
  • Increased fan power ▶ Increased volume

However, the models work relatively quietly (approx. 50 dB) even at high/maximum power. Thus, even at full power, the volume is comparable to rain or a conversation.

Different air purifier models are also compared on the volume scale.

You don't hear the fan (motor) itself, but rather the air being forced out of the vents with increased force.

Accordingly, most air purifiers make a noise similar to the fan of a powerful computer or laptop.

How well do air filters combat house dust and fine dust?

As already mentioned, air purifiers are equipped with the finest filters. Due to this, the devices can remove house dust and even microscopic fine dust from the air. ✅

However, the household helpers cannot capture the dust once it has settled on the floor and furniture. ❌

Models with a good CADR rating increase the air circulation in the room and can help remove house dust and fine dust before it settles and gathers. 💨

We have some great alternatives that will help you. ⏬

What alternatives to air purifiers are there for tackling allergens?

Air filters are great "anti-allergen helpers", but unfortunately they can't do everything...

...that's why we have tested other alternatives that can be helpful for allergy sufferers and you can read our results on the most successful household helpers in these two articles 🧐:

The robot vacuum sucks in the allergens.

The Smart Home Fox smilingly holds a battery hoover against allergens in his hand.

These two devices will help your air purifier fight allergens.

Which? Best Buys for air purifiers in the UK

The independent UK consumer organisation Which? has tested more than 60 different air purifiers.

They score models out of 100%, with marks given for categories such as:

  • Dust/smoke/pollen removal
  • Quietness
  • Ease of use
  • Smart features

The Electriq EAP500HC emerged as the winner overall with a score of 85. It did well in most of the categories listed above, with marks deducted for its heavy weight and volume on the highest setting. 🏆

Coming in at second place is the Blueair Classic 605, which received similar praises and criticisms to the test winner.

When it came to reviewing our own test winner, Which? awarded the Philips 2000i AC2889/10 76%, calling it a “brilliant air purifier” but criticising its filtration system for its difficulty in replacing and removing filters.

The unit scored five stars in dust removal, smoke removal and energy efficiency, with 4 stars given for pollen removal.

Are air purifiers for allergy sufferers covered by health insurance in the UK?

Effective premium air purifiers can be expensive. So we recommend asking your health insurance company whether subsidies - or even cost absorption - are possible.

In order for the costs to be covered by a health insurance company, your allergy must be confirmed/attested by a family doctor or allergist.

Then you can apply for reimbursement before the purchase. Approval depends on the health insurance company and the person in charge.

Unfortunately, allergy sufferers do not have a basic right to have the costs for air purifiers covered.

Nevertheless, it’s worth staying persistent even in the case of a rejection and to file an objection.

The smart-home fox smiles calmly and holds a cloth over his nose to protect himself from allergens.

Do air purifiers work for allergies? Our conclusion

For people with pet allergies, dust allergies or hay fever, allergen-free air is a must and makes everyday life much easier.

Your indoor air is effectively filtered by air purifiers and monitored for contamination. Modern devices are smart and mostly work fully automatically.

The best air purifiers should have the following characteristics to properly fight allergens:

  • HEPA filter (class H13)
  • Activated carbon filter
  • Smart timer function and app
  • High fan power (air should be able to be filtered up to 5 times within 1 hour)

Then the exposure to allergens in your home will decrease significantly.

Consequently, you can say goodbye to watery eyes, runny nose and sneezing fits and can breathe freely in your home and enjoy the allergen-free air. 😌

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  • How much do air purifiers for allergy sufferers cost in the UK?


    Basically, you can find air purifiers in all price ranges. The selection is very large and versatile nowadays.

    We do not recommend very cheap devices, because they usually do not have the filter capacity or the fan power to effectively remove allergens from a room in the long term. 

    The price for the premium air purifiers is also limitless, but you get what you pay for. Higher prices often correlate to high-quality, high-tech models with highly efficient filter units (filter class H13 and higher).

    You also get a modern and innovative design for the money. 🤩

  • Will an air purifier reduce the amount of dust in my home?


    The answer to this question is a bit tricky... Because it's yes and no. But what does that mean for you? 🥴

    Let's try to describe it this way:

    • Yes: Because the air purifier can filter out the coarse and fine dust that is in the air. Because, as already mentioned, the device stimulates the air circulation and can thus remove some of the dust.
    • No: Because the part of the dust that has already settled on the floor and furniture in your home cannot be removed by an air purifier. Vacuum cleaning is probably the best way to do this. 😉

    In addition, it can't hurt to wipe down the furniture with a wet cloth from time to time. This will keep your flat dust-free and clean 😌.

  • Can I also test the devices and return them if they don't help?


    Many manufacturers, such as Dyson, have a 30-day money-back guarantee.

    This way you can test the air purifier for 1 month and then decide whether the device has helped you against allergens.

    If you don't like the model, you can return it free of charge and get your money back - stress-free and uncomplicated!

  • Which HEPA filter class do I need?


    HEPA (High Efficiency Particulate Air) filter classes include the certified class H13 and H14.

    The filters underneath are abbreviated with "EPA" (Efficiency Particulate Air) and have the classification E10 - E12.

    Filter classes above "HEPA" are "ULPA" (Ultra Low Penetration Air) filters and have the highest degree of separation.

    The HEPA filter class is perfectly adequate for allergy sufferers. ULPA filters are so fine that they are more likely to be used in hospitals (i.e. in operating theatres).

    An EPA filter, on the other hand, does not capture all the microscopic impurities and is therefore rather unsuitable for allergy sufferers.

  • Should my air purifier be equipped with an ioniser?


    According to experts, devices with so-called ionisers / "UVC boxes" are rather unsuitable for allergy sufferers.

    Ionisers release negative ions to bind to positive ions, removing more impurities. However, these models also generate ozone, which can have a negative impact on the health of sensitive consumers.

Alex

We breathe up to 20,000 times a day. Therefore, clean air is an absolute must for me. For this reason, I decided to test air purifiers. I put the clever devices to the test and I am happy to share my experiences with you.

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