What is the Best Cheap Air Purifier?

If you’re looking to improve the air quality inside your home without spending a lot of money, then you’ve landed on the right page.

In this post, we’re going to answer the question “What is the best cheap air purifier?”

Clearly, you want to get the most value out of any money you spend, and doing research on what a cheaper air purifier can and can’t do is essential.

Here are a few key things to keep in mind when you shop.

Decide What You Need Your Air Purifier to Do

Every air purifier is manufactured to work on different types of air quality issues. We cover this topic more in-depth in our post on when to buy air purifier.

So, the first step is to decide what you want your cheap air purifier to excel at.

For example, if you’re worried about dust and allergens, an air purifier with a HEPA filtration system can get rid of these types of particles. 

If you want to remove odors from cooking, tobacco, pets, or cleaning agents, looking for an air purifier with an Activated Carbon filter is a good idea.

This type of filter helps to catch particles that cause household odors, and this can leave your home smelling fresh.

If you or someone in your household is susceptible to getting sick, then you’ll want to find an air purifier that includes a UV-C light.

This feature zaps airborne bacteria and viruses and can help sterilize your indoor environment.

Finally, if you don’t want to deal with the hassle (or cost) of replacing filters or UV-C bulbs, an ionizer is your cheapest and best option.

These types of air cleaners purify the air by sending out ions to remove harmful pollutants.

The best affordable air purifier is one that contains two or more of the features mentioned above.

We’ve listed the best cheap air purifier models to make your search easy.

Available Features

Which is the best cheap air purifier for you will depend on the features you want it to include.

No two air purifiers are the same, and each one will come with its own set of options.

Obviously, the more money you spend, the more options it will contain.

When shopping for a cheap air purifier you can expect to find these types of things:

  • HEPA filter of some type which may be permanent and reuseable
  • Combo filter that includes a layer of Activated Carbon
  • Ionizer that can be turned on and off
  • Nightlight
  • Multiple fan speeds
  • Filter change (or clean) indicator
  • Manual control dials or knobs

Calculate the Coverage Area

The question “What size air purifier should I get?” is asked quite often.

Every air purifier has a limited range that it can work well in, and this specification is measured in square feet (sq. ft.)

For example, cheaper air purifiers are only able to cover 100-20 sq. ft. while a more expensive option can handle much more.

To find out how much coverage you’ll need out of a cheap air purifier, calculate the square footage of the room you want to use it in.

Then find a product that can handle that size.

To get the square footage of a room, measure the length and width in feet and then multiply these two numbers together.

This will give you the total square footage for the area you need to cover.

For example, a 15 foot room by 10 foot room would total 150 sq. ft. (15 x 10 = 150).


We hope that the information outlined on this page has helped you narrow down what is the best cheap air purifier you can buy.

If you want to spend the least amount of money possible, you’ll likely have to sacrifice a few features.

If you’re willing to spend up to $50, you can get all of the features mentioned on this page and more.

If you want to see what small air purifier for bedroom models exist, we have a post on that too.

Regardless, you can find a quality air purifier at any cost without breaking your budget.