5 Best Air Purifiers For Radon Gas: Complete Removal

  • Author: Irene Mills
  • Date: October 27, 2022
  • Time to read: 7 min.
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Do you know radon is radioactive, invisible to the eye, and has no taste and no smell?

This toxic gas is the second prominent cause of lung cancer, and it can enter our homes at will, and most of us are unaware it even exists.

Luckily, one of the reasons people gravitate towards air purifiers is that they eliminate harmful chemicals indoors.

But it can be overwhelming by the sheer number of options out there.

After hours of research, I put together a list of the top air purifiers on the market that will remove radon gas.

Read on to see our list of the top air purifiers for radon gas Mitigation. ..


Here is a quick overview of our top favorite air purifiers.

IQAir GC Multi-Gas Air Purifier
IQAir GC Multi-Gas Air Purifier
  • #1 Rated room air purifier for gases, and odors
  • 100x more effective than HEPA air purifiers
  • Covers up to 1,125 sq ft
  • Can trap emissions as small as 0.004 microns
Alen BreatheSmart
Alen BreatheSmart
  • Covers 700 SqFt  
  • Quickly absorbs chemicals and VOC fumes 
  • Powerful air quality sensors
  • Provided with a lifetime warranty
Hathaspace Smart True HEPA Air Purifier
Hathaspace Smart True HEPA Air Purifier
  • Covers 1500+ Sq Ft Coverage
  • Quickly and efficiently purify a room in approximately 30 minutes.
  • "Whisper-quiet’ technology

5 Best Air Purifiers For Radon Gas Mitigation

The five best air purifiers that are highly effective in removing radon gasses are as follows.

1. IQAir GC Multi-Gas Air Purifier For Radon

The IQAir Multi-gas air purifier has a hyper HEPA filter and has been rated as the number one purifier for multiple chemical sensitivity and smoke.

The IQAir air purifier is classified as medical-grade and is far more effective in removing radon than standard HEPA filters.

Key Features of the Product:

IQAir GC Multi-Gas HEPA air purifier is idyllic for areas affected by smoke, gas, odors, smokers, and chemicals, aids with multiple chemical sensitivity, and has an activated carbon filter.

Highly suitable for large rooms.


  • Can trap emissions as small as 0.004 microns
  • Extremely strong unit
  • Diminishes radon effectively and efficiently


  • Considered noisy compared to similar-styled units
  • Has been known to emit a slightly sweet chemical scent, which some consumers have reported as annoying

2. Alen BreatheSmart

This purifier was designed by NASA engineers.

The Alen BreatheSmart is rated very highly. And is considered one of the finest air purifiers for reducing radon.

It can purify the air for large areas, and the air filter absorbs smoke, dust, odors, and VOC fumes from common kitchen sprays and chemicals.

Key Features of the Product:

Classic Large Room air purifier, suitable for 700 sqft areas.

Has a big coverage area and is considered a true HEPA filter for smoke, VOCs, chemicals, allergies, pollen, dust, dander, and fur.

It comes in white color.


  • Neat and compact design
  • Suitable for more prominent, larger spaces
  • Powerful air quality sensors
  • Advanced WhisperMax’ technology-enabled
  • California Air Resources Board (CARB) certified
  • Provided with a lifetime warranty


  • Considered a comparatively noisy unit
  • Has been reported by consumers to come with glitchy sensors

3. Hathaspace Smart True HEPA Air Purifier (HSP001)

With this 5-in-1 air purification system, the Hathaspace’s HSP001 Air Purifier can quickly and efficiently purify a room in approximately 30 minutes.

With two suitable air changes per hour, this unit can purify the air in a 370 ft2 room 48 times a day.

Key Features of the Product:

Hathaspace Smart True HEPA air purifier for sizeable homes.

Contains a 5-in-1 large room air cleaning capability that is highly effective against odors originating from allergies, pets, asthma, and cigarette smoke.

The filters are rated as 99.97% effective in removing allergens such as pet hair, dust, smoke, pollen, and an assortment of odors.


  • Purification system, with 5 in 1 mode
  • Auto-mode/ Air quality sensor
  • Low noise emitted from this unit
  • Night-mode function available
  • Timer function capability
  • ‘Whisper-quiet’ technology
  • Two-year warranty
  • Remote control capability
  • California Air Resources Board (CARB) certified


  • Not compatible with Google Assistant or Alexa
  • No filter replacement indicator ability
  • No anti-child-lock capability

4. LEVOIT LV-PUR131 Smart True HEPA Air Purifier

The LEVOIT smart true HEPA air purifier has an in-built three-stage filtration system, with one filter allocated for each stage.

The HEPA filters are categorized as Honeycomb activated carbon filters, large in size and just as effective.

This unit capably removes COVs and radon gas emissions efficiently.

Key Features of the Product:

LEVOIT air purifier for homes that contain large rooms, with H13 True HEPA filters, an in-built air cleaner for treating odors from allergies and pets, cigarette smokers, mold, pollen, and dust.

It has a quiet odor eliminator setting for the bedroom and comes with smartphone capability.


  • A reliable honeycomb-type carbon filter, which filters radon
  • Smartphone connectivity option
  • Auto-mode/ air quality sensor
  • Replacement filter indication available
  • Low noise level rated for this unit
  • Timer function capability
  • Compatible with Google Assistant and Alexa
  • Energy-star certified


  • Short filter life, which means replacement filters will be required more frequently than other models
  • App connectivity issues have been reported by some consumers
  • No anti-child lock capability

5. Okaysou AirMax8L Air Purifier

The Okaysou AirMax8L has a two-stage duo filtration system, ensuring reliability when protecting your home.

The Honeycomb activated carbon, and cold catalyst filter can safely catch any harmful gases.

The replacement filter indicator is a helpful addition.

Okaysou suggests replacing the filters every six months, which will depend on usage.

Key Features of the Product:

Okaysou AirMax8L air purifiers with the ultra-duo two-filter system.

Rated as medical grade H13 HEPA to cater for odor arising from home pet hair and cigarette smoke.

The unit has been officially rated to remove 99.97% of smoke dust and pollen VOCs for large rooms.

The silent functionality enables this air purifier to be used in bedrooms during sleeping, and it can adequately service a 500 sq. ft space.

This unit comes in white color.


  • Five-stage filtration process
  • Replacement filter indication
  • Silence boost technology
  • Timer functionality
  • Night mode capability
  • 5-year warranty
  • CARB, RoHS, and CE certified
  • ETL listed
  • Child lock capability


  • No auto-mode/ air quality sensor mode
  • Not compatible with Alexa
  • Consumers have reported the ad-hoc unavailability of replacement filters
  • This unit has been reported by some consumers as unable to manage smoke odors effectively

Choosing An Air Purifier For Radon Gas: What To Know

Air purifiers will only allow air to be released into our breathing environment after it has passed through a layer of filters.

As a result, all of the harmful contaminants initially present in the air will be filtered out – including radon.

And the key filter that will perform the filtration is called the HEPA filter.

These filters are preferred when it comes to removing allergens as it is known as the “Activated Carbon” filter. And is highly effective when dealing with radon (Atomic number 86).

The essential but crucial items required as a bare minimum for the removal of Radon gases from your home are as follows:

  1. An air purifier that manages the service necessary for the size of your home,
  2. Ensuring that HEPA filters can be easily used with your chosen air purifier,
  3. Ensuring that carbon-activated filters, which contain carbon that works to catch odors and gasses passing through the filter, can also be easily used with your chosen air purifier.


Is Radon Gas Worse in The Summer or Winter?

Radon was once believed to be present in higher concentrations during winter the winter season.

This was due to our homes mostly being ‘sealed’ from the cold outside air, coupled with the addition of burning fuel in the air due to log and gas fires.

Radon can be present during summer periods as we open our doors and windows to allow cool summer evening breezes to cool our homes.

Do HEPA Filters Remove Radon?

A HEPA filter has the high-efficiency ability to identify and remove practically all particles from indoor air.

Radon particles can attach themselves to other airborne particles, hence HEPA filters are a credible solution to remove radon.

Is It OK to Live in A House With Radon Present?

The short answer is ‘Yes’ but is dependent on the radon levels present in your home.

If you smoke and have high radon levels in the house you reside in, you greatly risk developing lung cancer.

Make sure to have a professional test your home, as this is the only efficient way to understand what radon risks there are to you and your family.


The most reliable method to effectively deal with radon is to understand your home’s air entry points.

Either seal these gaps or minimize the time you and your family spend there.

Air purifiers can help remove radon but become truly useful when they have HEPA carbon activated filters installed.

Scientific proof has confirmed that radon is dangerous and can cause lung cancer.

Financing a suitable air purifier with HEPA filters is more than highly recommended.

It is recommended that potential consumers confirm their air purification requirements and available budget before investing in an air purifier.

Editor’s #1 Product Recommendation

IQAir GC MultiGas – Medical-Grade Air Purifier for Chemicals, Gases, & Odors with MultiGas

 #1 Rated room air purifier for gases, odors, multiple chemical sensitivity (MCS):

  • Covers a room size up to 1,125 sq ft
  • Air delivery up to 300 cfm
  • 12 lbs.of activated carbon for a wide range of chemical substances and odors
  • Programmable operating options

The GC MultiGas Air Purifier is one brand from IQAir that satisfies all the requirements of a trusted company.

They possess a proven track record and are highly regarded by their customer base.

Most importantly, GC MultiGas air purifiers brand are technology partner with the United Nations Environmental Program, the United Nations Habitat, and Greenpeace.

They have numerous internationally accepted certifications.

Above all, this multi-gas air purifier is consistently rated highly in all customer reviews, coupled with its impressive company history and impressive sustainability practices, it is our recommended choice for your home.

Looking For Air Purifier Guides?

If you’re looking for more air purifier resources, consider checking out our other posts on air purifiers.

irene mills author of freshairdevices

(writer & chief editor)

Irene Mills is eager to help others create an indoor allergen-free home. She has years of experience testing out air purifiers, dehumidifiers, and other products designed to help with indoor air quality. Learn more about me.