What Air Purifier is the Best for Radon Gas? | The 3 Best Air Purifiers for Radon Gas


There are lots of air purifiers on the market, but not all of them take care of radon gas. Most aren’t built to take care of the hazardous gas that plagues many homes in the world today.

As harmful as radon gas is, where it comes from may surprise you. Radon seeps into your home from the ground your home is built on!

The best way to deal with radon in your home is to prevent it from getting in in the first place. Believe it or not, that can actually be super easy to do too! (We’ll expound on that in a bit.)

But first, we’ll share on what this article is really about.

What Are the Best Air Purifiers for Radon Gas?

The best air purifiers for radon gas use special filters that are made of something that doesn’t seem very special at all. What is it? Charcoal. More accurately, activated charcoal (which is different than normal charcoal).

Activated carbon (also called activated charcoal) is used in many air purifiers because it absorbs odors. In fact, it can even capture smoke and gas too!

This gas-capturing property is what makes air purifiers with activated carbon filters the only real option that you have to capture radon gas. If you’d like to read up more on air purifier filters like activated carbon, check out our article on them here.

You might be thinking that there still is a lot to think about and worry about in selecting an air purifier that will take care of radon gas, so we’ve made a list of the three best units that we could find.

To make things easier, we’ve ordered these from cheapest to most expensive. Additionally, all these units are for larger rooms and not bedrooms. To see our recommendations for the best air purifiers for radon for bedrooms, scroll down a little further! 🙂

Top Three Air Purifiers for Radon Gas for Large Rooms

Larger rooms usually require larger air purifiers. Why? Well, larger units have bigger filters and stronger fans. That means that they can filter more air in larger areas more effectively. The drawback, however, is that these units are usually costlier than the machines you would put in your bedroom.

Winix 5500-2 Air Purifier

The Winix Air Purifier's Activated Carbon Filters Make it a Great Air Purifier for Radon!

The Winix 5500-2 is an air purifier that really stuck out to us. Why? Well, it’s pretty stinking cool!

For starters, it utilizes three filters, a pre-filter, activated carbon filter, and a True HEPA filter.

The cool thing about this unit though, is that its pre-filter and activated carbon filter are washable! That can save you time and money in the long run!

And speaking about saving money, this unit is almost a tenth the cost of the last unit on our large room list! A tenth!

This unit is built for rooms that are up to 360 square feet, which means that it’ll be a good match for most living rooms. However, it probably won’t be your best choice if you’ve got a living room with an adjoining dining room and kitchen.

Alen 45i

The Alen 45i Air Purifier Works Great at Absorbing Gasses Like VOCs and Radon

The Alen 45i is built like a beast. We just recently stumbled across Alen and have heard only good things about them since then.

But that’s not enough for this unit to make it onto this list. What’s so cool about this machine?

For starters, it’s got two pounds of activated carbon in it. Two pounds! That’s a lot of radon absorbing power right there.

In addition to that, this unit has a True HEPA filter, which means it will be able to take care of allergens, additional airborne odors, and a lot more.

This unit is designed for rooms that are up to 800 square feet, so it’s for rooms that are more than double the Winix unit we liked.

IQAir GC MultiGas

The IQAir GC MultiGas Air Purifier is Great for Radon Gas

IQAir’s GC MultiGas air purifier is the largest and costliest air purifier on our list.

This unit has 12 pounds of activated charcoal in it, six times more than the Alen unit. That’s a ton of air cleaning ability!

This unit is designed for very large areas–rooms up to 1125 square feet, to be exact! That’s some massive coverage area, area so big that it might be outside of a lot of people’s needs. If you’ve got 1125 square foot room, or that much of area of adjoining rooms, then this is one of the few air purifiers that will be able to cover all that area.

Top Three Air Purifiers for Radon Gas for Bedrooms

As I’m sure you’re all aware, bedrooms are smaller than living rooms. Usually at least. These units are a lot more affordable than ones made for larger rooms, so here are our favorite three units that’ll help with your fight against radon in your home!

LEVOIT Air Purifier

This LEVOIT Air Purifier Could be Great for Radon in Your Bedroom

This air purifier has an activated carbon filter, just like every other one on our list today. Once again, radon gas, in addition to other gasses like VOCs, are absorbed by the activated carbon.

So, what makes it special then?

Well, it’s the cheapest one that we’ve shared today, for starters. In addition to that, the machine can double as an essential oil diffuser. What does that mean? Well, essential oils are super neat and we’ll probably write up on them some time in the future because they’re so cool. Until then, we’ll let you do some research.

This LEVOIT air purifier covers up to 161 square feet (random number, we know), so it’ll suit most bedrooms fine. It would also work great for most home offices too!

Okaysou AirMic4S

The Okaysou AirMic4S is Perfect for Bedrooms and Livingrooms!

Our next air purifier for radon gas that we picked out is a smidge more expensive, but they have a discount if you buy two. (Hey, you’re probably living in a house with at least two rooms that are 580 square feet!)

Yes, this unit is made for some pretty big rooms, but it specifically mentions that it can take care of 150 square foot rooms too. Why does it? Well, they wanted to point out that it can filter the air in those smaller rooms a lot better than it could the big ones.

With that out of the way, this air purifier comes with a True HEPA filter, just like most of the machines we’ve shared. It’s got some cool extras that we’ll let you check out, if you’re interested in this unit, and it’s still pretty affordable.

And yes, this unit has activated carbon filters that will help you with radon gas and other harmful gasses in your home.

So, if you’re looking for an air purifier for rooms ranging from 150 square feet to 580, this might just be the perfect unit for you!

LEVOIT Air Purifier (Number Two!)

This LEVOIT Air Purifier Works Great for Taking Care of Radon Gas in Your Bedroom

Yes, we’re throwing another LEVOIT Air Purifier at you. These are great machines, so we’re always going to recommend them!

This unit does everything that the other one on our bedroom air purifier for radon gas list does, but it’s a bit costlier. Why does it cost more? Because it does a more.

Admittedly, it doesn’t do a whole lot more, but it does have some cool options that the other unit does not offer. If this is your first air purifier, you might want to stick to the first unit we offered, just so you don’t buy something that you aren’t too sure about.

If you have bought an air purifier before though, then this unit is pretty sweet. We recommend checking it out if you’d like to see the extras because we aren’t going to commit any more words to this one. We must note that this unit doesn’t have an option to allow you to use it to freshen up your air with essential oils too.

Finally, this air purifier covers just as much area as the other LEVOIT unit at a max coverage of 161 square feet.

Whatever air purifier you end up choosing, just remember that mitigating the amount of radon that gets into your home in the first place should be the priority, as we said at the start of this article. We’ll go more into this in the next section.

How Do I Keep Radon From Getting Into My Home?

Radon gas is no fun. We’ll explain why that’s the case in the next section. Right now, we’ll examine some quick and easy ways to keep radon from entering your home in the first place.

You might be thinking, “Well, if I can keep the radon out of my home with what you’re about to talk about, then why do I need an air purifier?”

Well, you got us there. If you can be certain that you took care of all the radon gas, or if you got it to safe levels, then you might not need an air purifier. That isn’t to say that you can’t benefit from still having an air purifier though. Air purifiers are really cool machines that can do a lot more than filter out radon gas. They take care of so much more than that.

The air purifiers that we shared above all provide a ton of “fringe benefits” beyond radon gas capturing. HEPA filters are great for allergy sufferers. People who always end up burning stuff in the kitchen will also be able to benefit from the units that are great at clearing the air of smoke. Air purifiers are awesome.

But, we’re not saying you should buy one just because some guy on the internet loves them. You can, of course, but you might want to read up some more on them first. If you’re feeling like you’d like to read up more on air purifiers once you’ve finished sorting out your radon gas problem, then you can bookmark one of our following articles for later!

What is an Air Purifier and What Do Air Purifiers Do?

Do Air Purifiers Really Work?

What is a Water Based Air Purifier? | The Pros & Cons of Water Air Revitalizers

Now that we’ve bored you with our little plea to love air purifiers as much as us, we’ll answer some of your radon gas mitigation questions.

What can you do to mitigate radon gas intrusion in your home?

  • Install a basement fan for radon! (It’s easier than you might think)
  • Contact the Experts in Your Area

Yeah, we know. Underwhelming list.

But, there’s a reason for that. Radon is a gas and it floats up from the ground. It can get through all sorts of stuff, but sealing your entire basement (or getting it done professionally) can be another option. That option is a bit costly, so we excluded it from our sad list.

Anyhows, radon gas.

So, since radon floats up through the ground (it forms there and it comes from radioactive elements–yikes). As it floats up, it has a tendency to get caught in your house because a lot of basements don’t have adequate ventilation.

Basement Fans for Radon Gas Are Surprisingly Easy to Install!

That’s why our first bullet point was installing a fan. It’s usually a ton cheaper than hiring professionals out and it’s pretty easy! Simply ensuring that there’s enough air flow in your basement that can pump that cancer-causing radon gas out can literally save your life.

Here’s a basement fan that we’ve recommended in the past for radon gas mitigation. It’s not cheap, but it is one of the better units out there, in our opinion. It’s also a lot cheaper than hiring professionals who might just install a fan just like this and charge you a ton more. You can check out this particular fan here.

It’s got a six-foot cord, so you may need to purchase an extension cord too, if you don’t have a plug nearby in your basement.

With that DIY option out of the way, we must mention that professionals are called that for a reason. They know what they’re doing. Odds are that someone who has been working on radon gas mitigation their whole life will be better at it than you and they’ll know a few more things. You may want to get some bids from the local pros to see if you want to go with them.

What is Radon Gas, and Why is Radon Dangerous?

Yes, radon gas can be super dangerous.

Believe it or not, it’s the second leading cause of lung cancer in the United States! The first is smoking, which is a bit easier to avoid than a toxic gas that literally comes out of the ground we stand on.

So, if radon gas is so bad, why aren’t you dead yet?

Well, radon takes a while to kill you, first off. Second off, not every home is at risk for radon.

Yes, you read that right. You might had “won” the real estate lottery and found a home that’s full of radon and you didn’t even know it. But, radon isn’t as prevalent as you might now fear. In fact, only about a quarter of homes where we are writing from are at higher risks of radon.

Yeah, that sounds high. In fact, it is high. According to the EPA, the national average for homes that have elevated radon gas levels is only one in fifteen! So one in four is a lot worse than the national average. A whole lot worse.

But how can you know if you’re running the risk of having too much radon in your home?

Again, we’ve got something super cool to share with you!

You can hire a professional to test for radon in your home OR you can do it yourself! Yes, we’ve got another fun DIY for you.

For this DIY, you have two options. On the one hand, you can purchase a fancy radon sensor that will test your home’s air for radon. If you’re not interested in that, you can purchase a test kit that’s a fraction the price. We’ve listed both below.

Radon Gas Testing Sensor Radon Detector

This sensor has all the bells and whistles. It constantly checks the radon levels in your home and shows you the average.

If you’re worried about long-term radon exposure, this is likely the best option for you, since the test kit is a one-time thing. Radon levels rise and fall throughout the year, so this sensor will likely give you the best idea of what you’re looking at.

You can order this sensor directly from the manufacture AirThings with this link, and save 10% when you use the code APE10-10OFF at checkout. Or, if you don’t want to do that, you can buy it on Amazon without the discount here.

Affordable Radon Test Kit for Your Home

Sometimes we just want to do things once and never look back. It can be a lot easier when it’s cheap too.

But, this is your health we’re talking about here, you sure you want to take the easy road?

This radon test kit might just give you the best of both worlds. How? Well, you can buy one, a pack of two, three, or four! That’s important because it means that you can do one test when you first buy the kit and then you can use the other when the season changes. Ideally, we recommend running one test per season, just to be safe, but one in the winter can suffice. Why? Well, radon levels are usually highest during the winter months!

You can order a test kit, or multiple, here.

We’re sure that we talked your ear off today, and would like to thank you for reading this far. Sorry if we scared you at all, and, quite honestly, we hope you don’t have any radon issues in your home! If you find out that you have a radon gas issue, then we hope that we were able to help you to take care of it!

Frequently Asked Questions About Air Purifiers for Radon Gas

Do Air Purifiers Help With Radon Gas?

Air purifiers can help with a radon issue, but they should not be your primary line of attack against the toxic gas. Instead, radon mitigation is your best bet! As the old saying goes, an ounce of prevention is worth a pound of the cure. The same is true with radon–prevent it from getting into your home!

Does Activated Carbon Remove Radon From the Air?

Yes, activated carbon can and does remove radon from the air. Normal carbon can’t, but activated carbon can. It’s a long science-y thing that we’ll save you from. To put it plainly though, activated carbon is sort of like a sponge for the air! It captures bad things and radon gas is one of those!

Is Radon Worse in the Summer or Winter?

Radon is worse in the cold winter months most of the time. If you’re worried about radon, then you’re best course of action is to either test your home’s air yourself, or have it tested, in the winter months.

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Jonathon Silva

Jonathan Silva is our longtime Air Purifier Essentials author. He has been writing on air purification technologies for his entire professional career.

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