Most Affordable Air Purifiers – Best of 2020


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We all try saving money wherever we can, especially when we buy something for our house. One such thing is an air purifier.

With the popularity of air purifiers constantly on the rise, people now look for models that offer the perfect balance between features and their budget. Luckily, you’ll find purifiers costing under $300 and even those that cost just $50.

Despite their low prices, they are just as effective as more expensive models. So, if you’ve been planning to purchase an affordable air purifier, here is all you need to know!

Comparison of the Most Affordable Air Purifiers

  • Space-Saving Design
  • Two Excellent Modes; Auto and Eco Mode
  • Best and Most Affordable Air Purifier Overall
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  • 7-Stage Air Purification
  • Can Clean up to 430 Square Feet of Space
  • Runner-Up and Best Affordable Air Purifier Under $300
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  • Lightweight and Compact
  • Can Clean Spaces Up to 100 Sq. Ft.
  • Most Affordable Air Purifier Under $50
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  • 3-Stage Filtration Process
  • Can Handle Space Up to 155 Sq. Ft.
  • Most Affordable Air Purifier Under $100
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  • Innovative PlasmaWave Technology
  • Most Affordable Purifier Under $150
  • Can Purify Space as Big as 360 Sq. Ft.
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  • 4-Speed Settings
  • Patented PlasmaWave Technology
  • Best Affordable Purifier Under $200
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Does Price Equal Quality?

When buying an air purifier, a cheaper model isn’t always going to be the right answer. With a cheaper model, you might have to miss out on some advanced features, such as more cleaning power, features, and room coverage.

However, in terms of quality, a lower price doesn’t always mean cheap quality. Even at an affordable price, you can get your hands on some high-quality air purifiers like the ones we’ve reviewed below. So, there’s no need to spend a ton of money when you can get a highly effective air purifier without it being a burden on your pocket.

Aspects to Consider Before Buying

When looking for a low cost, affordable air purifier to purchase, you must consider a few key features. You must ensure that paying less doesn’t mean sacrificing these important features.

Multi-Stage Air Purification

Manufacturers tend to cut corners when designing an inexpensive air purifier. In doing so, they exchange multi-stage purification with a single stage one.

As a result, these devices are nowhere near as effective as the expensive models. With a single stage air cleaner, you get just one type of filter that works to get rid of just a small set of toxins from the air.

On the other hand, multi-stage air purifiers combine different types of air filters. Thus, they are able to provide excellent protection against various harmful airborne particles. In short, such air purifiers give you the most value for your money. And having multiple filters gives it a more comprehensive cleaning ability.

Replacement of Filters

Another factor to consider is how often the filters need to be replaced. While an air purifier might seem to be the perfect pick, with time, the cost of replacing the filter can make it quite an expensive long-term investment.

In fact, with some models, you might have to change the filter after every one to three months, which really adds up the expense. So, when purchasing an affordable air purifier, make sure to check the description for such details. This way, you’ll avoid falling into the money trap!

Quick Take: Most Affordable Air Purifiers

These are our recommendations for the best, affordable air purifiers:

  1. Coway AP-1512HH
  2. Biota Bot Air Purifier with Ionizer
  3. Holmes Small Room 3-Speed HEPA Air Purifier

Review of the Most Affordable Air Purifiers

As mentioned earlier, you can easily get the benefits of fresh and clean air without spending too much cash. To do so, you need to get one of the best and most affordable air purifiers. Some great options include the following:

Best Overall:
Coway AP-1512HH

Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode


  • Hardly Makes Any Noticeable Noise
  • The Construction is Good, Making it Durable
  • The Replacement Filters Aren’t Too Expensive


  • It Takes a Lot of Pollutants for the Sensor to Go Into Auto Mode

Our Review

Like many air purifiers available on the market, the AP-1512HH features a true HEPA filter as well as a carbon filter. However, it also has two additional steps for purifying the air that most others miss out on. There are a micro-mesh layer and an ionizer that add to the effectiveness of the unit.

The carbon layer catches large particles like dust bunnies and cleans up the air of unpleasant smells. Meanwhile, the true HEPA filter is responsible for filtering out most of the particles including smoke, dust, and pet dander. Moreover, made of metal, the purpose of the micro-mesh layer is to catch pet hair, large particles, and dust. The last step is the ionizer which also works to reduce dust.

The Coway 1512HH comes with an auto mode that adjusts the fan speed depending on how contaminated the space is. On auto mode, when the unit detects pure and clean air for half an hour, it then switches to eco-mode to help conserve energy. There’s also a light on top which informs you of how dirty the air around you is. Similarly, there’s a timer that you can run for given time periods and it will shut off automatically.

One other great feature is its design. The unit draws in from the bottom and front sides and shoots it out from the top. So, you don’t need to make space for it specially.

Bottom Line

Thanks to its auto mode, this air purifier is ideal for those wanting to save money on their utility bills and don’t want to worry about constantly fiddling with the unit’s settings. Plus, thanks to its design, you don’t need to worry about where to put it.

Runner-up and Best Under $300:
Biota Bot Air Purifier with Ionizer

Biota Bot Air Purifier with ionizer for Large Rooms (MM208)


  • Energy Efficient and Quiet
  • Provides Nice White Noise That Helps With Sleep
  • The Preset Settings are Easy to Use and Welcoming
  • The Product Design is Great, and the Unit is Truly Beautiful


  • The Unit Isn’t Too Durable

Our Review

When it comes to the most affordable air purifiers, one serious contender is the Biota Bot Air purifier. This is a comprehensive air-cleaning system which offers seven different stages of air purification. These include a pre-filter, two kinds of carbon filters, a HEPA filter, a three-speed fan, ultraviolet sterilization, and an anion generation fan. Thanks to its powerful air purification stages, particles like germs, odors, mold, hair, volatile organic chemicals, allergens, and dust will surely cease to exist.

You can also set a timer to determine the time period for which the air purifier runs. Alternatively, you can choose the auto mode which lets the purifier set the speed of the fan, as well as the duration according to the quality of air in the room.

Plus, the indicator present on the top informs you of when it’s time to replace the filter. In fact, there’s a sleep mode too that runs on the lowest setting to clean the air while keeping the sound as low as possible.

The unit has a sleek digital panel with touch buttons you can use to select from three fan speeds according to the number of pollutants and allergens in your room. Moreover, it can handle a space of up to 430 square feet.

Bottom Line

One way to describe Biota Bot MM208 is to call it powerful and impressive. With its incredible seven-stage cleaning system, it can effectively clean rooms as large as 430 square feet.

Holmes Small Room 3-Speed HEPA Air Purifier with Quiet Operation, White


  • Highly Durable and Can Last a Long Time
  • Thanks to its Small Size, You Can Place it on the Nightstand
  • Makes it Much Easier to Breathe and Promises a Good Night’s Sleep


  • The Strongest Setting Has a Noticeable Hum

Our Review

Don’t be fooled by the unit's low cost, it is as effective as any other good air purifier! While this model comes with a HEPA type filter, it can be upgraded with an advanced Holmes Aer1 filter that targets particular airborne pollutants.

Despite its small size, it has multiple air filtration stages. These include a pre-filter which captures the large particles, which in turn, allows the HEPA filter to work more efficiently. Meanwhile, the ionizer works to add a boost of additional cleaning power against airborne contaminants that are not collected by the HEPA filter.

The unit can filter particles that are as small as two microns, which is enough for general household filtration. Plus, with three different speeds, you can set the purifier lower or higher according to your preference.

Of course, as a small room model, it can only clean up to 100 square feet. Moreover, as you might expect, the purifier is very light, weighing under six pounds. Plus, its small size also makes it convenient for putting it on a desktop or tabletop.

Bottom Line

The Holmes small three-speed air purifier is suitable for those individuals looking for an affordable and basic purifier. It is ideal for places where there's limited space such as your office or bedrooms. Plus, for the user’s convenience, you can place the unit horizontally or vertically without sacrificing on performance.

Best Under $100:
GermGuardian AC4825

Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust Pet Dander, Mold Odors, Quiet 22 inch 4-in-1 Air Purifier for Home AC4825E


  • Replacing the Filters is Easy
  • Very Quiet With a Fan That Runs Strong
  • Promises Very Good Filtration, Particularly for Dust


  • The Circuit Board Tends to Burn Out After a Few Months of Use

Our Review

With its unique tower shape, the GermGuardian AC4825 works well in small areas and is a great option for those on a small budget. It is effective for spaces as large as 155 sq. ft. As mentioned earlier, having a multi-filter air purifier is important and this one is no different. It has a carbon filter that helps it get rid of the small particles.

The second filter is the true HEPA filter. Then comes the third layer of the purification process which is a bacteria and virus-fighting UV-C light. This third stage helps to eliminate all the elements that negatively affect your health. Apart from that, the unit can also handle different household odors as well as unhealthy gaseous compounds.

It has a few more excellent benefits. These include its slender design, low weight, portability, and excellent energy efficiency. Despite all the advantages, you will surely feel the lack of some features most expensive purifiers generally have. These include a filter change indicator and an air quality indicator.

However, overall, the unit is a high-quality and reliable purifier that works without any of the fancy features. At such a low price, you can’t really ask for anything else!

Bottom Line

This GermGuardian purifier is a basic, yet excellent air purifier. Weighing just 8.5 pounds, it is quite portable, too so those wanting a lightweight and slender model will love this quiet device. Plus, since it is energy efficient, it can help save money in the long run. It’s an efficient purifier with no frills that does all the essential cleaning of the air within your house.

Best Under $150:
Winix 5300

Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter,Gray


  • Even on Full Speed, it is Very Quiet
  • Available at a Very Affordable Price
  • The Smoke Filter Efficiently Gets Rid of the Smoke


  • The Air Quality Sensor is Highly Insensitive

Our Review

The Winix 5300 is one of the top rate purifiers because of its patented PlasmaWave technology, which is not present in other cleaners. This innovative technology has the same advantages that an ionizer has without producing ozone or other harmful side effects. In fact, PlasmaWave is considered to be the safest technology of this kind.

The unit comes with a true HEPA filter which removes 99.97% of allergens and dust from your house. Plus, the PlasmaWave technology takes cleaning one step further and eliminates other contaminants. This is a safe method of killing viruses and bacteria that don’t irritate asthma or allergy symptoms, making it better than purifiers equipped with ionizers.

Like most purifiers, this one also has a carbon filter which helps to reduce smoke and smells. However, the most notable feature is the smart sensor which monitors the air quality in the room and adjusts itself automatically to maximize the cleaning power. Furthermore, the Winix model is suitable for handling rooms as large as 360 sq. ft., making it ideal for many office settings and home applications.

Bottom Line

Overall, this model is designed to tackle any home environment and can help you get rid of VOCs, household odors, mold spores, smoke, pollen, dust, and pet dander. Plus, it is Energy Star certified, making it highly efficient.

Best Under $200:
Winix 5500

Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter,Gray


  • The Auto Mode Allows Hands-Off Operation
  • Has a Sturdy and Durable Hard Plastic Body
  • You Get Many Features at a Considerably Low Cost


  • Doesn’t Deal With Small Particles Very Well

Our Review

The Winix 5500 is another powerful model with a four-stage filtration system. There is a pre-filter which handles all the large particles like pet hair and dust pieces. The filter is washable and traps the particles inside, allowing the filters to work longer and efficiently. Then there’s the AOC carbon filter which deals with other chemicals, VOCs and odors, making it ideal for smokers. This layer is washable too.

Next comes the true HEPA filter which filters out up to 99.97% contaminants that are 0.3 microns in size. This layer takes care of mold spores, pet dander, and allergens. Finally, PlasmaWave technology comes into play. As talked about in the previous model, this makes the air fresh and clean. Plus, since it’s an optional feature, you can switch it on and off using a separate button. There’s a check filter button as well which informs you of when it is time to replace the carbon and HEPA filter.

Moreover, this model has a sleek design, making it look great in almost all environments. Plus, its black color makes it slimmer than it really is. In addition, the control panel is straightforward and discreet. You can also control the purifier by using the remote control.

Additionally, the unit has many smart options which are quite impressive, given the moderate price. Such features include a light sensor, air quality sensor, timer, sleep mode, and auto mode.

Bottom Line

Overall, the Winix 5500 is characterized by a convenient and powerful filtration system. Plus, most of its filters are washable, which means that this is a highly efficient air purifier.


Air purifiers are excellent for those wanting to reduce their exposure to pollutants and enjoy fresher and purer air. Indoor air quality is more crucial than outdoor air quality since we spend a bigger part of our day inside. So, having clean air around you indoors is imperative.

With the best air purifier, you can reduce airborne particles such as volatile organic compounds, cleaning agent toxins, dust, mold, pet dander, fungi, virus, smoke, bacteria, odors, and allergens, so that don’t harm your throat, eyes, or lungs.

People Also Ask

Below are some FAQs:

Are Washable Filters Better Than Replacement Filters?

Compared to replacement filters, washable filters are considered to be more cost-effective. However, washable filters tend to lose their efficiency with time. Since they are cleaned via a vacuum, debris and dirt are often left behind which, in turn, clogs the filter.

If I Use My Purifier In A Room Larger Than The Recommended Size, Will It Still Work?

Of course, the unit will work, but its effectiveness will be reduced. Remember, that if you place it in a room that is twice the size stated by the manufacturer on the unit, then your purifier will be only half as capable. However, the air inside the room will still be cleaner than before.