Best Air Purifiers

best air purifiers

Our editors independently research the best products online to produce this list. We may receive commission on purchases made from the links below but this will never affect our product choices.


Air purifiers are effective home and office appliances to improve indoor air quality. They’re ideal for reducing mould spores, relieving asthma symptoms and, with HEPA filters, can even kill airborne viruses and bacteria. Suitable for pet owners, allergy sufferers, remote workers and more, these devices have advantageous health benefits. Let’s discover the top seven options powerful enough to cleanse your atmosphere.

How We Compared Air Purifiers

To find the right air purifiers, we considered multiple factors, including:

  • Filtration system
  • Design 
  • Modes and functions
  • Noise level
  • Effective range

Our team planned comparison points and specifically looked for products that would cater to all kinds of needs. We spent countless hours researching, consulting customer reviews and comparing features to come up with this list.

Air Purifier Reviews

Levoit Core 300S (Editor’s Choice)

This smart air purifier adapts to your lifestyle, as it includes Amazon Alexa and Google Assistant to power on and off the appliance. It has an effective range of 431 ft² with a noise level as low as 22 dB. Designed for ease of use, it has an Automatic mode that regulates the air quality according to your room.

The Levoit Core 300S includes VortexAir technology to increase indoor air circulation and purify the air in a room two times per hour in a 40 m² space.

It also features an upgraded three-stage filtration system to trap dust, pollen, bacteria, mould, viruses, pet dander and fur, VOCs, and household odours. 

Firstly, it catches these allergens and particles. Then, the HP13 True HEPA filter captures smoke particles, fine dust, pet dander, and pollen. Finally, the activated carbon filter removes smoke, odours, fumes and VOCs.

Pros:

  • Three filter stages
  • 22 dB Sleep mode
  • Amazon Alexa and Google Assistant
  • Displays PM2.5 rating
  • User-friendly controls

Cons:

  • It might not be as powerful at removing odours as others on this list
  • This appliance might be a bit noisy when not in Sleep mode

Philips 3000i Series (Luxury Choice)

This two-in-one air diffuser can remove up to 99.9% of viruses and aerosols from a room. It freshens areas up to 80 m² at a 600 ml/h humidification rate. 

The Philips 3000i Series is equipped with NanoCloud technology, which humidifies air effectively and quietly with up to 99% fewer bacteria. This technology uses natural evaporation to create an invisible mist of pure water vapour. As a result, it increases moisture levels in the air and makes it difficult for bacteria to attach to them.

This smart device operates at 45 watts, which is energy-efficient and equivalent to the power of one standard light bulb. You can also choose the target humidity level in your room with the option of 40%, 50%, 60%, or 70% humidity. Meanwhile, the AeraSense sensor clearly displays air quality and level of allergens.

Pros:

  • 45 watts energy efficiency  
  • AeraSense sensor displays data
  • Purifier and humidifier setting
  • Long 1.8-metre cord 
  • Up to 310 m3/h CADR

Cons:

  • The display might not have a screen to share the air quality
  • At 8.42 kg, the design might be bulkier than others

Silentnight Air Purifier 38060 (Best Value)

This home air purifier removes 99% of airborne allergens as small as 0.3 microns, including dust, pet dander, odours, pollen and smoke. It features an independent ioniser that releases negative ions into outgoing air to improve filtration.

The Silentnight Air Purifier 38060 comes with a three-stage filter system, one of which uses HEPA technology. The final stage uses carbon to eliminate the finest particles in the air, also helping to get rid of odours and bad smells.

This device also has a sponge filter to help neutralise airborne mould, fungi, and pet dander. Amongst its other features, you can count three varying speed levels and a timer that runs for up to eight hours.

Pros:

  • Four timer settings
  • Removes airborne allergens as small as 0.3 microns
  • Independent ioniser 
  • Three-stage filter 
  • Sponge filter helps to neutralise mould and fungi

Cons:

  • The three-speed settings might be more limited than others
  • Its range might be too small for some larger rooms

LEVOIT LV-H128 (Best for Odours)

This air purifier has an effective range of 15 m² and includes an aromatherapy function. Simply put two to three drops of essential oils to clean the air in your space and add a fresh fragrance.

The LEVOIT LV-H128 includes an H13 True HEPA Filter that uses a three-stage filtration system to trap fumes, dust and 99.97% of airborne particles as small as 0.3 microns. 

One standout feature of this gadget is the Sleep Mode, which has a volume of 28 dB, so it won’t disturb your rest. Plus, the button light powers off after five seconds to avoid any bright glow in your bedroom.

Pros:

  • Aromatherapy function
  • Compact design 
  • 28 dB Sleep mode
  • Covers 15 m²
  • One-button operation

Cons:

  • It might operate at a louder volume when the filter system is blocked
  • This product may cover a smaller space than other top options

Levoit Core 300 (Best Design)

This gadget, equipped with QuietKEAP technology, maintains noise levels to 24 dB in Sleep mode, cleaning the air in your home without disturbing you. It’s suitable for large rooms, as it purifies areas of up to 431 ft² in just 24 minutes.

The Levoit Core 300 features VortexAir technology with 360-degree air intake, curved fan blades and raised vents to circulate fresh air in your home while keeping noise to a minimum.

Best of all, it includes four fan settings, so you can set the desired time for an auto shut-off. Furthermore, this air purifier includes four replacement filters – original, pet allergen, toxin absorber, and mould and bacteria.

Pros:

  • 24 dB in Sleep mode
  • Four replacement filters
  • QuietKEAP technology 
  • VortexAir Purify technology
  • Four fan settings

Cons:

  • It might require separate filters based on individual needs
  • This appliance might not have wheels for easy transportation

ProBreeze 4-in-1 Air Purifier (Best Small)

This four-in-one unit captures up to 99.97% of airborne particles, smoke, mould, pollen, odours, dust and pet dander with a true HEPA filter, active carbon filter and pre-filter. Measuring 170 mm long by 216 mm tall and only weighing 1 kg, it’s compact and lightweight and targets areas up to 50 sq ft. 

The ProBreeze 4-in-1 Air Purifier includes two modes (low or high) for ease of use. It also has a Negative Ion Generator that neutralises airborne pollutants. 

This product purifies the air at a delivery rate of 42m³/h. Also, thanks to its compact design, it’s convenient to transfer it to different rooms.

Pros:

  • Two simple modes
  • Negative Ion Generator
  • 42m³/h delivery rate
  • Filter change light 
  • Three filtration stages

Cons:

  • This device might capture fewer airborne particles 
  • It might operate at a louder rate than other options

HoMedics True HEPA (Best Easy to Use)

This option removes 99.97% of airborne bacteria and allergens as small as 0.3 microns. It’s suitable for rooms up to 55 m² and has a simple interface with three speeds, which you can select and adjust at the touch of a button.

The HoMedics features HEPA technology that extracts pet allergens, smoke, dust, viruses, bacteria and mould.

Furthermore, this device is certified ECARF Allergy-Friendly and approved by the British Allergy Foundation. It also includes an LED light to notify you when it’s operating.

Pros:

  • It kills particles as small as 0.3 microns
  • Minimalist display
  • True HEPA filter
  • Certified ECARF Allergy-Friendly
  • LED light alerts

Cons:

  • It might not have smart voice functions
  • The display may not show the air quality in real-time 

How to Choose an Air Purifier

Here are some key features to consider during the buying process. Below, we’ll break down the top attributes to look for in an air purifier and how to pick one that will help you breathe easier, suits your room size and has all the speeds and modes you need.

Filtration System

Most importantly, your chosen air purifier should trap airborne particles, pet dander, dust, pollen, mould and, ideally, viruses and bacteria. Consider a product that catches particles as small as 0.3 microns to ensure all air in the room is clean and fresh.

Many of the best products have three filtration stages, and we recommend a true HEPA filter, which prevents ultrafine particles from staying in your home’s atmosphere. Additionally, an activated carbon filter reduces pollutants like arsenic and mercury and can even remove microbiological contaminants from drinks. 

Design 

If simplicity is important to you, avoid flashy air appliances with smart voice compatibility. Instead, consider a device with an easy-to-read display, such as one that uses a colour code to demonstrate the air quality in real-time. Not all air purifiers share data on their displays, so you might need to refer to the app to access all info.

You might also want to consider how easy it is to use. For example, do you want to make adjustments with just one option, or would you prefer a more complex interface that allows you to make more customisations?

Furthermore, if portability is essential to you, look for a lightweight and compact unit with wheels, which makes moving it around from room to room convenient.

Modes and Functions

If you need lots of versatility, a range of speeds is essential. Most include three modes – low, medium and high, though some include up to four, which is ideal for switching up the power during allergy seasons or if you have a pet.

Furthermore, if you’d like the air purifier to handle everything, contemplate one with an automatic mode. This provides peace of mind that it’ll adjust its power to the air quality, which could save you running costs, too. 

Some units have additional features, such as aromatherapy function or a built-in humidifier. There are even models with an integrated night light and a speaker. These functionalities help replace multiple units in your home or office.

Noise Level

A loud air purifier can disturb your sleep or concentration. If the noise level is important for you, settle for one with a Sleep mode. It typically runs at a quieter volume, so you’ll barely hear it. Look for a volume of around 20–30 dB if you’re a light sleeper.

Effective Range

Finally, you should consider the room size in which you’ll use your air purifier. Generally speaking, the smaller the appliance, the less radius it will cover.

Each product will specify the room size for which it will be suitable, so take measurements before purchasing. Otherwise, you might need to consider multiple ones for one room.

Summary

The Levoit Core 300S is the best option for improving indoor air quality and operating it easily. Its VortexAir technology enhances air quality quickly, and the three-stage filtration system traps 99.97% of airborne particles, dust, mould, pet dander and more.

The AirSight Plus technology provides real-time air quality monitoring and uses an indicator colour to display the results clearly. We also love the smart voice compatibility to control the device without your hands. Another incredible attribute is the integrated QuietKEAP function, which keeps noise levels as low as 22 dB not to disturb you while you sleep or work.

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