Best Air Purifiers For Allergies – 2021 Review

| Last Updated: May 25, 2021

Allergies are perhaps one of the few universally disliked things on this planet. Anyone with allergies would share the same sentiment.

However, fortunately, there can be many preventive measures that can be taken and one of the simplest of them all is to invest in an air purifier. However, that leaves us with a question. Which is the best air purifier for allergies?

Well, this article will help you answer this very question. So, let’s get this started!

Comparison of the  Best Air Purifiers For Allergies

IMAGEPRODUCT
  • It Works Very Quietly
  • It Can Cover a Space of 700 Square Feet
  • The Six-Step Filtration Process is Very Thorough in Removing All Contaminants
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  • Automatic Settings Also Make the Purifier Easy to Use
  • Automatic Settings Help Save Energy and Reduce Light Pollution
  • Four Stage Filtration Process is Quite an Effective Way to Purify the Air
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  • It Can Be Controlled Via Remote Control
  • It Can Cover an Area of 155 Square Feet
  • Three-Stage Purification Process Offers a Unique Way to Purify the Air
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  • It Features an Automatic Mode
  • It is Also Equipped With a Light Indicator
  • The Purifier Has a Simple Way of Filtering and Purifying the Air
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  • The HPA100 Has 4 Different Speed Levels
  • It is Equipped With a Carbon Activated Filter and a HEPA Filter
  • It Has an Automatic Timer That Can Be Set at Different Intervals
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  • Auto and Eco-Mode Help Save Power
  • The Indicator on the Purifier Shows if the Air Needs to Be Purified
  • Micro Mesh Layer and Ionizer Combined With the Carbon and HEPA Filter Help Clean the Air More Efficiently
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  • Best Air Purifier For Cat Allergies
  • Can purify personal space up to 355 square feet
  • 3 stage filtration system removes 99.97% of airborne particles
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How to Choose Air Purifier for Allergies

When you are looking for an air purifier, there are some things that you need to keep in mind. Air purifiers made specifically for allergies are a bit different than regular air purifiers. Factors to consider include:

HEPA Air Purifier

HEPA also known as High-Efficiency Particulate Air Filters is one feature that you should definitely look for in any air purifier. These filters can filter out contaminants from the air up to 99.7%. Moreover, they capture particles that are as small as 0.003 microns.

Carbon Filters

These help filter out the air and make it more breathable. They treat the air by removing odors caused by smoke, mold, pet dander, and more.

Ionic Air Purifier

This type of air purifier does not use paper filters like the rest. An ionic air purifier emits charged particles that latch on to contaminants and remove them from the air.

Power

The power of an air purifier is another important feature that needs to be considered. Any purifier that you chose should be able to purify the area it is installed in.

Review of the Best Air Purifiers for Allergies

We have selected six of the most popular air purifiers for allergies and reviewed them in depth. Each review will discuss the most impactful features and the pros and cons of the respective air purifier.

Best Overall:
Rabbit Air MinusA2

RabbitAir MinusA2 Ultra Quiet HEPA Air Purifier - Stylish, Efficient and Energy Star (SPA-700A, White, Odor Remover)

PROS

  • Six-Step Filtration is Very Effective
  • Can Be Mounted on Walls and is Very Compatible in General

CONS

  • No Timer Control

This purifier is a great product by Rabbit Air. It features a six-step filtration process. The six filters include a pre-filter which traps the largest particles, then the medium filter traps the particles which are a little smaller in size. The next layer is the HEPA filter which removes the smallest of particles from the air.

After that, there is a customizable filter that is installed. This can be anything of your choice, a germ defense filter, pet allergy, odor remover or it could be a toxin absorber as well. The fifth layer is a carbon filter for unwanted odors and the sixth layer consists of an ionizer.

The Air MinusA2 has quite a modern look. It is made mostly of metal and is crafted in a sleek square shape. It has an LED panel in the middle which shows if the purifier is on or off. A panel on the right side of the purifier holds all the control buttons of the device.

The air purifier is capable of covering a space of 700 square feet. Furthermore, the filter is designed with five different fan speeds but is still very quiet.

Bottom Line

The Minus A2 is an attractive device in all respects. It has an elegant design and it uses state-of-the-art technology. The six filters are layered and help clean out the air more efficiently and make it allergen-free.

Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier (SPA-550A White)

PROS

  • Very Modern and Chic Design
  • Uses the Latest Technology
  • Helps Conserve Energy Which Saves Money
  • Comes Equipped With Four Different Filters

CONS

  • Filters Can Cost Quite a Bit When They Need to Be Replaced
  • Can, at Times, Make a Bit of Noise if Put on a Lower Speed Setting

The company, RabbitAir is quite popular when it comes to air purifiers. The reason for that is because they specialize in the manufacturing of air purifiers.

Each product from Rabbit Air is bound to have a sleek, modern look. Not only that, but they are also equipped with the latest technology in the market. The RabbitAir BioGS 2.0 Ultra Quiet HEPA Air Purifier (SPA-550A) is no exception.

This item comes equipped with many features that you can experiment with. These include fan speed which can be selected between three different levels.

Another amazing feature of this air purifier is the four-stage filtration process. The pre-filter catches the largest of the particles and after that, the BioGS HEPA filter comes into action. This clears out all particles starting from the size of 0.003 microns. The next step is the charcoal activated carbon filter. The last stage of the filtration process is the negative ion generator which fortifies fresh air which is sent out from the device. It does so by charging the air with negative ions.

Another feature is that it uses energy in a very efficient way. It has an automatic mode which can turn the machine on and off according to the time that is set. The automatic mode offers further assistance as it activates the required settings as needed.

Bottom Line

Overall, the RabbitAir BioGS 2.0 Ultra Quiet HEPA Air Purifier (SPA-550A) has many features that make a good air purifier. It also comes equipped with many settings which makes it quite easy to use. The four-stage filtration will make sure to clean out the air and keep it free from any allergy triggers.

Best for the Money:
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

PROS

  • Works Very Quietly
  • Compact and Easy to Move
  • UV-C Sanitation is a Good Way to Treat the Air

CONS

  • Does Not Cover a Lot of Room Space

The GermGuardian AC4285 is a portable air purifier that works wonders. It has a three-step purification system. The first step comprises a pre-filter with activated carbon. It stops the larger particles from going through as they could clog the next filter.

The next filter is the HEPA filter which is a popular filter when it comes to disposing of allergens. It helps clean out 99.7% of all contaminants from the air by filtering out the smallest particles.

The last step of the process is the UV-C sanitizer. This uses ultraviolet light to clean the air of all bacteria. Following that, it uses titanium dioxide to remove any odors that might have escaped the first filter.

It can be controlled by remote control and also has an automatic timer that can be set to different intervals. Furthermore, the purifier can cover an area of up to 155 square feet.

Bottom Line

If you are looking for a small, yet effective air purifier, this is the one for you. Not only does it work efficiently, but the UV-C technology is a big plus for anyone looking for a good purifier that deals with allergens.

Best Air Purifier for Pet Allergies:
LEVOIT LV-PUR131

LEVOIT Air Purifier for Home Large Room,Smoke and Odor Eliminator, H13 True HEPA Filter for Bedroom, Auto Mode & 12h Timer, Cleaners for Allergies and Pets, Mold Pollen Dust, LV-PUR131, White

PROS

  • Sleek and Portable
  • Removes Allergens from the Air
  • Saves Energy Due to the Automatic Mode

CONS

  • Fan May Stop Working or Produce a Loud Noise

The LEVOIT LV-PUR131 Air Purifier has a very contemporary design to it. It features a sleek white body and a digital display as well. The controls of the purifier are on a panel on top of the purifier. It is equipped with an automatic mode as well as a light indicator which indicates the quality of the air. In the automatic mode, the device is self-adjusting and sets itself to the required settings.

The filtration layers consist of a pre-filter an HEPA filter and a carbon filter which helps get rid of odors. It can also easily handle average-sized rooms. However, like most purifiers, this one is not equipped with an ionizer.

Bottom Line

The LEVOIT LV-PUR131 is an overall good device to invest it. It covers an area of 322 square feet and is great in conserving energy. The HEPA filters help rid the air of allergens, and the carbon activated filters do away with unpleasant odors.

Best Hepa Air Purifier for Allergies:
 Honeywell HPA100

Honeywell HPA100 HEPA Air Purifier, Medium Room (155 sq. ft), Black

PROS

  • Certified by AHAM
  • Pumps Fresh Air Five Times an Hour
  • Compact and Portable so That it Can Fit Anywhere

CONS

  • Fan Can Produce Quite a Bit of Noise
  • Replacing the Filter of the Purifier Can Be a Bit Expensive

The HPA100 is from the allergen remover line of Honeywell which is an American company famous for manufacturing air purifiers. It utilizes two filters. The first is a carbon activated filter which protects the HEPA filter and also catches the larger particles from the air. It also cleanses the air from unpleasant odors such as those of pets, smoke, mold, cooking, etc.

Meanwhile, the HEPA filter treats the air for smaller particles and gets rid of mold, chemicals, pollen, and other such allergens. It clears the air of allergens up to 99.7%. The HPA100 also reduces the use of energy. However, this does not affect the power of the output in any way. Instead, it only helps you save cash on your utility bills.

The controls of this purifier are also very easy to use. Moreover, the purifier also has a built-in timer which functions in two, four, and eight-hour intervals. The HPA100 can also recirculate fresh air up to five times in an hour.

In addition, the HPA100 has four different speed levels to choose from. Moreover, the room size coverage of the purifier is up to 155 square feet.

Bottom Line

The HPA100 is considered one of the best purifiers in the market. It has filters that work efficiently and several other features which make this air purifier a consumer favorite. Moreover, it is small and can easily be placed just about anywhere.

Best Air Purifier for Dust Allergies:
 Coway AP-1512HH

Coway AP-1512HH White HEPA Air Purifier, 16.8 x 18.3 x 9.6

PROS

  • Replacement Filters are Easily Available.
  • Purifier has a very sleek and classy look.
  • Performs Efficiently and Conserves Energy as Well
  • Filters are Easy to Clean

CONS

  • Light of the Indicator Cannot Be Turned Off

Made by a company based in South Korea, this air purifier brings some unique features to the market. Like any other purifier, it comes equipped with a carbon filter and a HEPA filter. However, it has some extra layers that are not found in your everyday variety. The carbon filter is placed behind a micro mesh layer.

This layer is made from metal and its job is to trap the larger particles. This includes dust, pet hair, etc. After this, the carbon filter and HEPA filter perform their respective functions, ridding the air of odors and the smallest contaminants. Lastly, the purified air passes through an ionizer.

The Coway AP-1512HH Mighty Air Purifier is built with a total of five settings. This includes three fan speed settings, an eco-mode, and an automatic mode. The purifier also comes equipped with a sensor. When in automatic mode, this sensor helps identify the contamination level in the air and adjusts the settings accordingly.

Moreover, if the purifier is set to automatic mode and it does not sense any contamination for 30 minutes, it will shift to eco-mode. On eco-mode, it will shut down until it senses contamination in the air again.

The air purifier also comes equipped with a light indicator. This indicates the pollution level in the air. It uses the colors blue, purple, and red to display clean, moderately clean, and dirty air respectively.

Bottom Line

This air purifier, although small, can easily treat a large space. Moreover, automatic and eco-mode both make the purifier very easy to use. In addition to that, the noise emitted from this purifier is very subtle. Therefore, it does not cause much disturbance either. All in all, this purifier is well-rounded and is a good choice.

Best Air Purifier for Cat Allergies:
Airthereal PH260

Airthereal APH260 Air Purifier for Home, Large Room-True HEPA Filter with UV and Auto Modes-Removes Allergies, Dust, Smoke, and Odors, 152 CFM, Pure Morning

PROS

  • Compact, light, and portable for easy shifting between rooms
  • Has auto-shutoff instructions with a 12-hour programmable timer
  • Silent operation with 28 dB sound level that is almost inaudible when on night mode
  • High performance with up to 3 filtration stages capable of filtering pollutants as tiny as 0.3 microns
  • Smart control that automatically selects the right air purification mode depending on the environment

CONS

  • Produces ozone, which is harmful to human health
  • Not suitable for extra-large rooms beyond 355 sq. ft.

What Recent Buyers Report

Users are fascinated by several features of Airthereal PH260 including its near-inaudible operation when on night mode. 

The auto-shutoff feature makes operation easy as one doesn't need to monitor the appliance once the timer is set.

However, some users report its inability to properly disinfect an entire 355 sq. ft room size as indicated on the specifications by the manufacturer. It best disinfects indoor air for spaces not more than 255 sq. ft.

Why it Stands Out to Us

The Airthereal PH260 produces minimal ozone as a byproduct and is CARB and ETL-certified hence still good for people with allergies. It is, however, recommended to turn off the UV-light and ionizer most of the time to reduce ozone exposure.

It has impressive three-stage air filtration: pre-filter, true HEPA filter, and an activated carbon filter. First, the pre-filter takes care of large dander and pet hair strands. Next, the HEPA filter removes 99.97% of minute particles, while the activated carbon takes care of unpleasant kitty litter smell and pet odor. The combination keeps air safer to breathe for those with allergies by reducing exposure to particles that trigger allergy symptoms. Additionally, the filters are replaceable after about 6 months of use.

The whisper silent operation with noise levels of as low as 28 dB makes the Airthereal PH260 air purifier ideal for use in baby rooms for children who love playing with cats.

Bottom Line

Airthereal PH260 is a high-performance air purifier that would work well for those with allergies and asthma. The molecular sieve, cold catalyst filter, true HEPA filter, and the 3 filtration stages will guarantee up to 99.97% pure air that is free from any cat debris or odors.

The small amounts of ozone produced as a byproduct should not be a cause of worry since the air purifier is CARB, ETL, FCC, and CE-certified.

Common Allergy Triggers in Your Home

It might come as a surprise to most people but very often the things that cause allergies are present in the house. Three of the most common of these triggers are dust mites, mold, and pet dander.

Dust Mites

Dust mites are those residents of every household that no one is aware of. The reason for this is that dust mites are very, very tiny. In fact, they are microscopic. Although they themselves are harmless, their waste and bodies can pose a problem.

Mold

Mold is usually found in dark, musty, and damp places. However, the spores that it produces can mix and spread through the air. These spores, when inhaled, can trigger allergies.

Pet Dander

Pet dander is basically the small flakes of skin that your pet sheds. These are although very small, but they can trigger allergies when inhaled.

What Makes an Air Purifier Great for Allergies? 

Low Noise Levels

Some asthma attacks are triggered by loud sounds, so finding an air purifier like Airthereal PH260 with ultra-low sounds when on sleep mode is recommended.

Number and Nature of Filters

Multiple filtration stages mean a bigger improvement in indoor air quality and removal of more airborne allergens. Air purifiers with up to seven filtration stages, including true HEPA filtration and activated carbon, are best for reducing asthma symptoms and allergic rhinitis.

Air purifiers come with different types of filters. Depending on the size of particles you are concerned about, you will need a different filter to catch them. Pollen and pet hair are much larger than the airborne particles that cause bad odor.

For allergies, it would be wise to pick an air purifier that will trap small, medium, and large particles. A high-efficiency particulate air (HEPA) filter for permanent and portable air purifiers is recommended.

The best air purifiers for allergies and asthma can remove airborne particles and gaseous pollutants as tiny as 0.1 microns. 

High Fan Speeds

For faster disinfection, a higher fan speed is important. The higher the fan speed, the faster the purification process. 

What Do I Need to Know Before Buying an Air Purifier for Allergies? 

There are quite a variety of air purifiers with different features and picking the right one might be a little confusing if you don't know exactly what to look for.

Here is a checklist of what to keep in mind when shopping for an air purifier for allergies.

The Type of Filter

Depending on what you want to filter from the air, different air filtration processes work best under different requirements. There are also varying sizes of air pollutant particle sizes that should also be considered.

For example, pollen and pet hair are large-size particles, dust is medium-size, and smoke is small-size. All these will require a unique filtration process. HEPA is the recommended air filtration for allergies due to its diversity and effectiveness in air disinfection.

Air Purifier Noise Level

Most likely, you'll be using your air purifier at night and you want a silent appliance that will give you and the young ones a peaceful night's sleep.

Check on the noise levels, measured in decibels (dB) on the product's specification to ensure it's as low as possible. While most air purifiers make less noise when on the low operation mode, there are still air purifiers operating at high speed with very low noise levels.

Some allergies and asthma are triggered by loud sounds so this is something you want to keep in mind when shopping for an air purifier.

Energy Efficiency

Air purifiers will always run for long hours sometimes for a whole day when you spend most of the time indoors. Although they consume less energy, when left to run throughout they can negatively impact your electricity bill. Consider investing in an air purifier with a timer and smart control. The air purifier will automatically monitor air quality and shut off once the disinfection is complete. 

Best Types of Air Purifiers for Allergies

There are several types of air purifiers but not all are effective in removing airborne allergens.

Here are some best types of air purifiers for allergies.

HEPA Purifiers

HEPA purifiers come with a very advanced air filter that can filter particles as small as 0.2 microns. This type of filtration purifies air up to 99.97% contaminant free levels.

HEPA purifiers will filter dander, dust, mold, and also pollen particles from the air. 

They are, however, unable to trap microorganisms like bacteria, germs, and viruses that are smaller than 0.2 microns.

HEPA is very effective not only in removing allergies but generally disinfecting air, which makes it so popular and many people's favorite air purifiers.

Ionic Air Purifiers

Ionic air purifiers are very quiet and operate without a motor. These air purifiers will clean almost everything in the air apart from removing odors.

They will remove dander, dust, allergens, smoke, fumes, bacteria, and viruses by emitting negative ions into the air that combine with air pollutants, making them heavy to stay in the air and instead fall to the ground.

Ionic air purifiers need regular cleaning for optimum performance.

Central Air Cleaners

Central air cleaners require professional installation to connect to central cooling and heating systems. They have up to 98% efficiency and will reduce asthma, allergies, and viruses by a bigger margin within your home. The high-end models remove particles as small as one micron and also clear all the dander and smoke particles.

Air Purifier vs Humidifier For Allergies - How Do They Compare?

Air purifiers and humidifiers are both used to enhance the air quality in our homes. Let's see how the two compare. 

Similarities

Differences

  • An air purifier's main purpose is to remove air pollutants and other airborne contaminants for pure breathable air, whereas, a humidifier's major purpose is adding moisture into the dry irritating air for a soothing feeling.

  • Air purifiers remove allergens, mold spores, pet dander, bacteria, smoke, dust, and other pollutants while humidifiers just add invisible vapor on dry air for easy breathing.

  • While air purifiers can work to remove mold spores in your room, humidifiers can create molds if humidity levels are raised beyond the recommended 50%. 

Benefits of Investing in a Quality Air Purifier to Combat Allergies

The reason why investing in an air purifier is beneficial for people who suffer from allergies is simple. The air purifier can clean the air you spend most of your time in. It helps cleans the air from dust, dust mites, pet dander, spores from mold, and all other such contaminants that are known as allergens.

 It is also helpful for your physical and mental body. This is because breathing in cleaner air makes your stress levels go down as well.

Conclusion

As mentioned before, there are some features that must be present in all air purifiers specially made for allergies. Those features, such as the carbon filter and the HEPA, are all present in all the products that were reviewed. Each purifier has its pros and cons, however, overall the purifiers all serve their purpose brilliantly. Now all you have to do is to set your eyes on your favorite!

People Also Ask

Air purifiers come in many different models and with varied features. Here are some common questions that people ask concerning purifiers for allergies.

How Long Does Pet Dander Stay in a House?

Pet dander can create so much discomfort especially for people with allergies like wheezing or itchy eyes. The time taken to get rid of pet dander may vary from one pet to another. For example, cat dander may take as long as four to seven months to remove completely even after the pet has left. Dog dander may take a shorter duration because, compared to cat dander, dog dander does not float as much.

Can an Air Purifier Help With Cat Allergies?

There are purifiers made with keen precision to manage pet allergies. Cats produce hair that is considered large particles (over 0.3 microns) when it comes to air filtration. There are air purifiers made with purification systems to help manage cat and other pet allergies.

What Kind of Filter For an Air Purifier For Allergies?

When it comes to air purifiers for allergies, high-efficiency particulate air (HEPA) filtration is the best. It is certified to remove up to 99.97% of pollutant air particles as tiny as 0.3 microns, a category that includes many common airborne allergens like pet dander and pollen.

How Often Should I Change The Filter on My Air Purifier For Allergy Relief?

Air purifiers for allergy work by trapping air pollutants and other airborne contaminants for filtration then releasing clean breathable air. Over time, these filtered pollutants may collect massively and reduce the efficiency of your air purifier. It is advisable to change these filters after a period of between 20-45 days depending on how frequently you use the air purifier.

My name is Bob Wells and I am a retired HVAC tech from Washington state. I am currently retired and no longer do much with HVAC, however, I feel like I have a lot of knowledge in the subject and I wanted to create a website where I could talk about what I've learned and help upcoming HVAC techs. Find more info about me and HVAC Training 101.