What Is Air Ionizer | Everything You Need to Know

For me, knowing what is air ionizer is a story that’s worth sharing. I was suffering from a serious odor problem in my neighborhood. So, before I went out to buy an air purifier, I asked one of my friends if he had any clue. I try to hear my friends’ opinions on every big decision of my life like should I play Call of Duty or Battlefield first?

As I got suggestions for air ionizer for my room’s air purification, I began some digging. Because I don’t trust my friends’ opinions although I really want to. I don’t know why but they all try to make my life miserable all the time. I hope you can relate.

While researching, I came to know that air ionizers won’t’ help me with odor issues. Surprise! Didn’t I tell you that they are up to something always? He knew this all along and planned to get his hands on my newly bought unnecessary (for me) air purifier.

As I got myself saved from being robbed, I planned to write all about it and save your day. But don’t think that air ionizers are not for anyone. It’s just not suitable for my situation.

There are many types of air purifiers in the market. Among many techniques of air purification, ionizing the particles in the air is one of them. So, let’s see what we’ll learn at a glance.

  • What is air ionizer? With how it works
  • If I should consider it or not
  • The pros and cons of an air ionizer
  • Some thoughtful final words

What Is Air Ionizer?

Purifying air can be done in two ways. One is using active purifiers like air ionizers and another is using passive purifiers like HEPA filters.

What active filters do is disable the harmful particles rather than removing them. For example, consider these air ionizers. This is the part where we get to know how it works.

Air ionizers create negative ions and shoot them in the air. These ions get attached to every particle no matter how small it is and makes them stick to any surface rather than roaming around in the air.

So, when you breathe, no harmful particle or chemical get into your body. What I’m saying is applicable for strong ionizers because cheap ones don’t do any good.

You got a general idea. I’ve said that ionizers don’t collect or remove the bad particles but there are some purifiers that come with oppositely charged collector plates. Also, there are air purifiers that use ionizer along with other filtering techniques like HEPA filter or active carbon filter to make more efficient purifier.

Should I Seriously Consider It?

After every introduction of a product, the common question comes into our mind that should I consider it for my home or office?

And the answer is always the same. It depends. So, let’s know for whom it may become helpful and for whom it may become harmful.

Buy it if you’re looking for something that doesn’t cost much, requires very low maintenance (almost none), not allergic, not concerned about ozone formation, and not dealing with odor.

Now, you know for whom it might cause more harm than help. I’m saying that you can consider buying an air ionizer as it has some advantages but if you take my opinion, it’s a big NO. At least don’t rely on something that is built based on only ion generator.

My negative opinion has some reasons and I’m bound to tell you those with some alternatives.

  • Studies have shown that even ionizing can’t stop harmful particles from roaming around. So, what’s the point if the one task it has been given can’t do properly?
  • It can’t deal with the particles that are positively charged. So, what am I going to do with those?
  • With very good ion generator, there is a very good chance of ozone creation to a level which isn’t good for the human So, why risk it?
  • It can’t remove dust or pollen effectively. So, what should I do if I’m allergic to those?
  • The particles stay attached to any surface in the room and there’re possibilities of getting into my respiratory system anyway. So, why even spend a penny on this?

When the facts are in front of us, it’ll be easier for us to choose the right one. I’m sure my friend who was trying to rob me will think again before managing an air ionizer for his home. The alternatives to air ionizers are many. See the reviews of our recommended air purifiers, gather some knowledge from our informative articles, and you’ll know what to do.

Always remember, understand your situation first. Then, know the types and features of every air purifier. And finally, make the decision. We’re here to help you in every step of your research.

The Good and the Bad


  • No need to replace filters
  • Almost no maintenance is needed
  • Don’t create ozone like an ozone purifiers


  • Can’t remove dust, dirt, pollen or dander
  • Slight chance of ozone build-up to a harmful level
  • Not helpful for allergy patients

Final Words

It’s not all bad. Considering the cons, you should not buy an air purifier that is solely dependent on the ionizing technique. Choose something that has multiple technologies. This way, you can ensure better air purification.

If you think ozone creation is unacceptable and allergy-unfriendliness can be harmful to your family, you should seriously consider other types of air purifiers that we’ve reviewed to buy immediately.

Knowing “what is air ionizer” will only tell you a small portion of the story. There are many techniques for air purification. Based on that, there are many types of air purifier which you can know by reading another informative article.