Best Ionic Air Purifiers

Ionic air purifiers, also known as air ionizers, are a very popular choice today.

And for good reason too; these air cleaners are highly effective but not overly expensive.

But what is the best ionic air purifier you can buy today? And what is the most effective air ionizer for your home or office space?

That’s what we’re going to answer in this post.

However, you’re not just going to discover the top ionic air purifier reviews, but you’ll also find out how ionizers work and why they’re a great investment as compared to a HEPA air cleaner.

Having this extra bit of knowledge will make it easier for you to choose which ionic air cleaner is the best one for your needs.

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Ionic Air Purifiers Reviewed in This Guide

Here’s a quick comparison chart showing the top ionic air purifiers. We’ll cover each aspect of these units in the reviews section below, but this gives you an idea of what’s available and an easy way to compare them.

ImageAir Purifier DetailsPrice
Ivation Ionic Air CleanerIvation Ionic Air Cleaner
  • Best overall ionic air purifier
  • Filters: Ionizer, Ozone Generator
  • Coverage: 3,500 sq. ft.
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OION Ionizer Air PurifierOION Ionizer Air Cleaner
  • Good value and performance
  • Filters: Ionizer, Activated Carbon, UV Light
  • Coverage: 300 sq. ft.
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Envion Pro Ionic Air CleanerEnvion Pro Ionic Air Cleaner
  • Most popular air ionizer
  • Filters: Ionizer
  • Coverage: 500 sq. ft.
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Envion Platinum Ionic Air CleanerEnvion Platinum Ionic Air Cleaner
  • Best user features on an ionizer air purifier
  • Filters: Ionizer
  • Coverage: 500 sq. ft.
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IonPacific ionZBox Ionizer Air PurifierIonPacific ionBox Ionizer Air Purifier
  • Top compact and portable ionizer
  • Filters: Ionizer
  • Coverage: 500 sq. ft.
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GreenTech PureAir 50 Ionizer Air PurifierGreenTech PureAir 50 Ionizer Air Purifier
  • Best for personal use
  • Filters: Ionizer
  • Coverage: 500 sq. ft.
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Best Ionic Air Purifiers List

Ivation Ionic Air Cleaner

1. Ivation Ionic Air Purifier

If you want the best air purifier ionizer for home or office use that can handle any size space, large or small, then this is the product you want to get.

Not only is the Ivation air cleaner very affordable but it’s also adjustable to purify a space up to 3,500 square feet, which makes it perfect for apartments, homes, and offices.

This top ionic air cleaner includes an adjustable dial to increase or decrease the rate of ionization production to remove the level of airborne contaminants from the room.

In addition to ionization, this air purifier also includes an optional ozone (O3) cleaning function that boosts the air cleaning ability. This feature helps remove viruses, bacteria, mold, and other toxins that are present in the air.

No particulates stand a chance against this powerful machine.

One thing to keep in mind is that O3 can be an irritant for some people. So our best advice here is to always ensure that the room you’re using this product in is well ventilated so the ozone can dissipate.

A few additional tips you can follow for safety measures include:

  • Only use the ozone function when you’re not in the room. That way you won’t be exposed to any O3.
  • If you are in the same room as the unit, then start with the lowest setting on the dial and slowly turn it up over time until you feel negative effects from the O3 production. At that point, turn the dial back to lower the output to a more comfortable level.

It’s important for you to know that not everyone will feel the effects of ozone production. There are many factors that come into play, such as any underlying medical conditions you may have, the room size, how well the area is ventilated, and more.

If you’re at all concerned about it, you could always just keep that function turned off. For the money, you won’t find any other ionizer that has this much air cleaning power.

With all that said, many people are happy with this ionic air purifier. So check out the reviews for yourself to see if it’s a good choice for your home or not.

This product can strip the air of all types of harmful contaminants and irritants. Plus, the wood cabinetry and stainless steel facing are a beautiful touch and help it compliment the decor in any room or office.

If you have a large space to purify, we highly suggest you try this device. It’s practically unbeatable.

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OION Ionizer Air Purifier

2. OION Ionizer Air Cleaner

The second best ionic air purifier you can get is this device.

For less than half the price of our first recommendation, you can enjoy an environment that’s not only allergen free, but also smells fresh and reduces the exposure to illness.

In addition to ionization, the OION also helps fight against smoke, smells, bacteria, and viruses through the combination of Carbon Filtration and UV-C Lighting.

You also have a choice between two color options: black or silver.

And it comes with an optional night light function.

As for room size coverage, it can handle a space up to 300 square feet.

If you’re looking for the best air ionizer to use in small rooms or personalized spaces, this is a great investment.

For anything larger, our #1 or #3 reviews would be better choices.

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Envion Pro Ionic Air Cleaner

3. Envion Pro Ionic Air Cleaner

If you liked the idea of our #2 recommendation, but want something more powerful, then this ionic air cleaner is a great alternative.

It handles rooms that are about two times larger than the OION, covering up to 500 square feet.

That makes this air cleaner perfect for most larger rooms in your home or apartment, such as the living room, basement, and big bedrooms, as well as an office space.

It also has 3 fan speed settings and a filter clean indicator.

The main difference here is that the Envion Ionic Pro Turbo doesn’t include the activated carbon filter for reducing odors like the OION product.

However, this ionic air cleaner does have a germicidal chamber that helps kill up to 99.99% of germs and bacteria that flow through the system.

All-in-all, this a great air ionizer that can remove airborne dust, allergens, bacteria, and viruses for a cleaner and healthier indoor environment.

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Envion Platinum Ionic Air Cleaner

4. Envion Platinum Ionic Air Cleaner

At first glance, you may think that this is a radically different ionic air cleaner than the previous review. But it’s actually just the upgraded version called the Envion Platinum.

This unit cleans the air in the same way as the Envion Pro by creating negative ions and releasing them into the air to electrically charge pollutants. This process makes it easier to trap the dust, germs, and allergens in the permanent filter plates.

It also covers the same amount of room space at 500 square feet.

So how is this ionic air purifier any different or better than the previous review?

It offers you several added benefits:

  • 4 fan speed settings (low, medium, high, and auto)
  • An automatic mode that adjusts the fan speeds automatically to remove pollutants in the most efficient way
  • A silent mode for running the unit quietly at a low speed (best used for bedrooms and other quiet areas in the home)
  • A timer that allows you to set the unit to automatically turn off up to 24 hours in advance
  • A dim button for turning off the top panel lights

Even with all of these added features, this air ionizer still uses less energy than a compact fluorescent bulb, making it very energy efficient.

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IonPacific ionZBox Ionizer Air Purifier

5. IonPacific ionBox Ionizer Air Purifier

Perhaps you’re looking for a small, compact ionizer air purifier for personal use.

Or maybe you just want something that you can take with you while traveling or to and from the workplace.

If that’s the case, then this may be the perfect device for your needs.

The ionBox a powerful little ionic air purifier that can clean the air up to 500 square feet.

You can also plug it into a wall outlet or power it through a USB port, which makes it great for the office.

What’s even better about this tiny ionizer is that it works non-stop to freshen the air and never needs any filter replacements. Independent lab tests by the manufacturer reveal that it emits up to 20 million negative ions per second to clean and freshen the air.

For the price and power, the ionBox is hard to beat in a low-cost ionizer air cleaner. While it doesn’t trap the pollutants on electrically charged plates like our previous three reviews, it’s still a good option for anyone who needs something that’s simple to use and efficient.

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GreenTech PureAir 50 Ionizer Air Purifier

6. GreenTech PureAir 50 Ionizer Air Purifier

Our final recommendation for a good ionizer is this small plug-in air purifier.

It’s designed to neutralize contaminants and odors in small rooms in the house, such as bedrooms, bathrooms, and kitchens.

The PureAir 50 is effortless to set up and use; simply take it out of the box and plug it into a wall outlet. Then, turn the dial on the front of the unit to scale the level of air cleaning power.

It can clean the air in a space between 50 to 325 square feet.

One thing to keep in mind is that this ionic air cleaner uses both ionization and ozone to purify the air in small spaces (similar to our #1 ionic air purifier review). Therefore, it does emit O3 into the air which can cause lung irritation for some people.

If that concerns you at all, then just follow the same advice we gave in our #1 review about how to use the ozone function wisely.

Other than that, this is a great product for small rooms in the home and for travel purposes.

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Ionizer Air Purifier Buying Guide

How a Room Air Ionizer Works

If you’re like most people, when you hear the terms “ionic air purifier” or “air ionizer,” then you probably imagine a device that operates in a highly scientific and complex manner.

While this may be true to some extent, the way in which these types of air cleaners actually work to purify a room is not as complicated as it may seem.

In fact, the core function of an ionic air purifier relies on basic physics, and it’s something we can all easily understand.

Here’s a brief explanation for how does an ionizer work:

  • An ionizer air cleaner operates by sending out negatively charged ions into the air. Airborne pollutants, such as dust, pollen, bacteria, and mold contain positively charged ions. In physics, opposites attract and when these two ions come into contact with each other they form an ionic bond, creating ionized air.
  • Once this bond is made, the airborne contaminants become heavier than normal. This weight causes these particulates to fall out of the air and onto the floor. This, in effect, neutralizes the toxins and prevents them from entering into your lungs when you breathe.
  • Some ionizer air purifiers include a fan to draw the negatively charged room air into the unit and pass it by electrostatic collection plates. These plates collect the pollutants and work as a permanent filter.

As you can see, an ionizer is an air purifier that cleans the air within a room by attacking particles at their root location.

The only downside to ionizing air purifiers without a filter is that they require you to vacuum the room in order to completely remove the contaminants that settle on the floor.

Fortunately, some ionic air cleaners include an electrostatic collection rod (or plates) that aid in collecting these fallen pollutants. This collection plate feature is a great addition to have because it helps eliminate the need for regular vacuuming.

As mentioned above, the particles stick to the plate as opposed to falling to the floor.

Most of the ionic air purifier reviews we recommend on this page include this useful feature.

Why an Ionic Air Purifier is a Great Choice

Best Ionic Air Cleaner

As you just discovered, ionic air purifiers use a powerful air cleaning technology that doesn’t require a physical filter to produce clean, fresh air.

It’s this feature alone that makes an air ionizer for home or office use so attractive for many consumers.

Other types of air purifying systems that rely heavily on HEPA filters require regular filter changes throughout the year in order to keep the device operating efficiently.

And these filter costs can really add up.

A HEPA filter is a dense, paper filter that works by trapping airborne particles that flow through the filter and deliver clean air out the other side. (Many of the best air purifier brands do contain this feature.)

While these filters are highly efficient, they can be expensive to replace over time as mentioned in our guide on an air purifier vs ionizer. That’s what makes ionic air purifiers a more affordable investment for

An ionizing air purifier that does include a filter will contain a metal rod or plate that can be wiped clean and reused for the life of the unit.

Another important feature to point out is that the best rated ionic air purifiers can remove particulates as small as 0.01 microns.

This is the smallest size of toxins you can strip from the air and includes super-fine dust, bacteria, pollen, pet dander, mold spores, and more.

Finally, when shopping for a room ionizer, you may find it packaged with one or more additional air cleaning features.

These upgrades fill in the gaps where ionic technology needs some help.

The two most common features include:

  • Activated Carbon Filter: This filter helps to eliminate smoke and odor. It works by absorbing gaseous particles and makes a room smell fresh. While it’s technically a physical filter, carbon is also cheap to replace.
  • UV Light: This technology uses UV-C radiation to destroy germs. It’s completely safe for humans but destroys viruses and bacteria. It works by breaking up the DNA structure of these particles, which renders them harmless and creates a sterile environment. UV lights last around 10,000 hours and are not too expensive to replace.

Now that you know how an air ionizer works and what makes it such a great investment for your home or office, you can now understand why the products recommended above made it to the top of the list.

Common Questions About Ionic Air Purifiers (Air Ionizers)

Best ionizer air purifier

Do Ionic Air Purifiers Remove Smoke?

Ionic air purifiers do remove smoke particles from the air. This includes smoke of all kinds, like wood, tobacco, marijuana, and burning fuels. Ionic air purifiers can also help dissipate the odors from smoke; however, an activated carbon filter is much more efficient for heavy smells because it traps VOCs.

The effectiveness of the ionizer air purifier on smoke will depend on how much smoke is present, the size of the room, and how well ventilated it is. The bottom line is that it can definitely help for smokers.

How Do I Know if My Ionizer is Working?

You’ll know if your ionizer is working if there’s a fresh smell in the air. It’s also working when you see fewer airborne particles, feel less fatigue, and breathe better. Some ionizers also collect pollutants on a metal plate. If the plates are dirty, then you know it is working.

If you want actual data to verify that your ionizer is working, then you can purchase an air ion counter. This handheld meter is designed to measure ion density which is the number of ions per cubic centimeter (ions/cc) in air. These units cost around $50 to $70.

What are the Benefits of Ionized Air?

Ionizers offer many benefits, including the removal of airborne pollen, mold, dust, pet dander, bacteria, viruses, smoke, odors, and chemical toxins. This makes ionic air purifiers good for people with allergies, asthma, or chemical sensitivities.

Additional air purifier benefits you can experience from ionized air include:

  • A decrease in the number of airborne bacteria. This study shows that “negative and positive ions generated by the ionizer are responsible for inducing oxidative stress and so reducing bacterial survival.”
  • Negative ions can help with seasonal affective disorder. This research indicates that “treatment with a high-density negative ionizer appears to act as a specific antidepressant for patients with seasonal affective disorder.”
  • Negative ions can help boost energy levels and relieve stress. WebMD says that negatively charged ions “are believed to produce biochemical reactions that increase levels of the mood chemical serotonin.”
  • Ionized air can reduce airborne particulate matter (PM). Experimental data showed that “NAIs (negative air ions) could be used to high-efficiently remove PM.”

Why Do Ionizers Smell?

Ionizers smell because they charge the air with negative ions. When the air is in a highly charged state, it smells fresh and clean. A similar experience occurs naturally around waterfalls, rivers, and mountains, where large concentrations of negative ions are located. This is why the air smells highly refreshing.

Do Ionizers Kill Mold?

Ionizers do not kill mold spores or destroy mold reproduction. An ionizer emits negative ions into the air that causes mold spores to settle out of the air faster. Therefore, ionizers do nothing to kill mold spores and have no effect on mold growing in your house.

If you want to kill mold spores, then an ionizer is best used in conjunction with a HEPA filter and a UV light. As the mold particles are knocked out of the air by the ionizer, the HEPA filter can capture them in order to remove the spores from the room. The UV light can then destroy the DNA structure of the mold so it stops reproducing.

If you want to learn more about this topic, then visit our page on do air purifiers help with mold.

Are Ionizers Safe?

When some people are looking to buy an ionizer air purifier, two questions that often come to mind are, “Are ionizers safe?” or “Are ionic air purifiers dangerous to be around?”

Because ionic air purifiers emit charged ions into the air as a way to clean it, it’s completely normal to wonder how good or bad they are for your health.

Most people have no idea if ions are o.k. to breathe in or not.

Because of this confusion, we thought it would be a good idea to answer that question for those of you who may be having it.

If you’re not worried about this topic, you can skip this section altogether and just choose one of the ionic air purifier reviews above that you like best for your home.

For those of you who are curious, the short answer is yes, ionic air purifiers are safe as long as the device falls into one of these two categories:

  • It’s an ionizing product only and doesn’t have an ozone generator
  • It allows you to control the amount of ozone emitted if high levels can be produced

The products we recommended above on this page meet these criteria and are safe for you to use inside your home.

We’ll explain more about why this is true after giving you a little background history on ionizers.

The Controversial Back Story On Ionic Air Cleaners

Back in the late 1990s, a company by the name of Sharper Image came out with a line of top rated ionic air purifiers called the “Ionic Breeze.”

Sharper Image generated a lot of sales by educating the public on how important it was to clean the air inside their homes and by strategically marketing these ionic air cleaners through TV infomercials.

It seemed like everyone was buying an Ionic Breeze for their home or at very least knew someone who had one.

Unfortunately, in the year 2005 Consumer Reports tested the Sharper Image air cleaning product and claimed that it released potentially unhealthy levels of ozone as a by-product into the air, which was essentially making indoor air quality worse for the people who bought it.

After some time, a class-action suit arose against Sharper Image and eventually the company filed for bankruptcy in 2008.

Even until the end, Sharper Image claimed that the testing methods performed by Consumer Reports were flawed and continued to stand by their ionic air cleaner products as being safe for household use.

The EPA Released a Report on Ozone Generators

Ionizer Air Purifier Report

Fast forward a few years and the U.S. Environmental Protection Agency (EPA) began doing its own assessments on air purifiers.

In a report titled Ozone Generators That Are Sold as Air Cleaners: An Assessment of Effectiveness and Health, the EPA brought light to the fact that some manufacturers were mislabeling ozone generators as “air cleaners” as a way to sell more of them to the public.

Those vendors were leading people to believe that these ozone generating devices were always safe to use indoors as a way to reduce airborne pollutants.

Unfortunately, those claims were false and those products were very dangerous to the people who bought them.

The truth is that high concentrations of ozone indoors leads to serious health problems in humans.

Most notably, high ozone levels cause things like:

  • Throat irritation
  • Chest pain
  • Shortness of breath
  • Decreased lung function
  • Higher susceptibility to respiratory infection
  • Aggravation of asthma

Due to the serious health effects that ozone can have on people, federal agencies have established the following set of health standards for what are considered safe levels of exposure for ozone:

  • Healthy Amount = 0 to 0.05 ppm
  • Moderate Concern = 51 to 100 ppm
  • Hazardous Amount = 100+ ppm

With such standards in place, the Food and Drug Administration (FDA) now requires that ozone output for indoor medical devices be no more than 0.05 ppm.

Any higher and the product would be considered unsafe for continuous home use.

What Does This Mean for You and Buying an Air Ionizer?

As we stated earlier, the products we recommend on this page are completely safe for home use.

(Note: This information only applies to adults who have fully developed respiratory systems. Infants and toddlers will require a special type of air purifier that doesn’t use ionization. You can find information on the best air purifier for baby here.)

For example, the Ivation air cleaner is a combo device that offers you full control over the level of ionization and ozone concentration that it releases into the air.

The ideal setting for this highly rated ionizer air purifier is to keep the ozone level as low as possible when people are inside the home.

Whenever the residence is vacant (i.e. you’re at work or the kids are at school), you can safely crank the ozone level all the way up in order to maximize the cleaning power of the device inside your house.

Once you return and cut the ozone feature off (or put it on its lowest setting), the remaining ozone particles in the air will eventually dissipate and go away.

The ionization control on this device can also be adjusted to any level of production. This feature is safe no matter how many ions are produced.

As for products like the OION and Envion ionic air cleaners, these items only have ionizing capabilities. Therefore, you don’t have to worry about them emitting unhealthy concentrations of ozone into the air or harming your health.

With that in mind, it’s also important for you to know that these best rated ionic air purifier models do produce a small amount of ozone as a by-product; however, it falls within the < 0.05 ppm range.

As you can see, the ozone ppm level is within the “healthy amount,” as set out by the FDA in the chart above.

Summary On Ionizer Air Purifiers

Best air ionizer

We hope this information has helped you find the best ionic air purifier for your needs.

As you discovered, air ionizers a an inexpensive and efficient way to clean the air indoors.

We also wanted to ease your concerns over the safety of using an ionic air cleaner inside your home.

Now you know what factors make up the best ionizer air purifier and classify it as good or bad for your health, you can make the smartest decision on which unit is right for you.

Avatar for Patrick Holmes

About Patrick Holmes

Patrick is a Senior Air Quality & Comfort Specialist. He conducts in-depth research and analysis for our product reviews and buying guides in order to offer expert recommendations for people who are seeking to improve their indoor air quality and comfort. (See Full Bio)