Best Air Purifiers for Allergies and Asthma in 2018

Well, we guess the reason why you are here to find the best air purifiers for allergies and asthma. You may be suffering from very bad allergies or asthma, right?

We make this list after testing hundreds of air purifiers to ensure that this list is the most proper buying guide of air purifiers for allergies and asthma in 2018.

Let’s not waste countless hours of searching through any others of websites just to find the top rated air purifiers that prevent your allergies and asthma. Because in Breathe Quality:

  • We do give honest reviews (both pros and cons) and a base comparison for all the air purifiers so anyone will guarantee to have the wisest choices.
  • We do not (and we never) exaggerate one product just to let you click the links and buy that product blindly.
  • Air purifiers are for everyone. Believing that, we will give you the best air purifiers from low-range to high-range. To know the exact price of your air purifier, make sure to hit the Check price button.

Before you are looking at our list, we must ensure that you know how to define a best air purifier for allergies and asthma in 2018.

  • Must have True HEPA Filter for removing even the smallest of bacteria, virus and other pollutant particles and an Activated Carbon filter to help with smoke and odors. Ionizer filter shouldn’t be included to help preventing asthma attack, or can be switched on/off. To understand the air filter types and how they work, please read this article.
  • The noise must be at low level, or completely no sound for not triggering asthma.
  • Your fan power, higher fan power means better allergens protection. You could quickly check the fan power through the ACH and CADR numbers.

Keeping all these three above rules in your mind whenever you purchase an air purifier for allergies and asthma. We wish nothing but your healthy life.

Related posts: 

Time to find out the best air purifiers for allergies and asthma in 2018!

BASE COMPARISON TABLE OF BEST AIR PURIFIERS FOR ALLERGIES AND ASTHMA IN 2018

This Comparison Table of best air purifiers for allergies and asthma will help you have a quick overview of our list of Top 10 Best Air Purifiers for Allergies and Asthma in 2018. The factor for comparison in this table is the Filter Types of this air purifier (which are always including of True HEPA filter). We also give the most concerned factors as Room Coverage or Air Purifier’s Size.

Remember that you should check the reviews of this comparison table. We will share all the knowledge about the pros and cons of each air purifier. To understand more clearly why we use this list of best air purifier for allergies and asthma in 2018, you should scroll to our buying guide.

ImageNameFilter TypeRoom Coverage (sq ft)Annual Filter ReplacementCheck ReviewCheck Price
best large room air purifiersBest Air Purifiers for Allergies and Asthma in 2018Rabbit Air MinusA2Advanced BioGS HEPA, Ionic Filter, Carbon Filter815Rabbit Air FilterRead More
Best Air Purifiers for Allergies and Asthma in 2018Best Air Purifiers for Allergies and Asthma in 2018GermGuardian AC4300True HEPA Filter, UV Light Filter, Carbon Filter153GermGuardian FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Levoit LV-PUR131True HEPA Filter, Carbon Filter322Levoit LV-PUR131-RF FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Honeywell HPA300True HEPA Filter, Carbon Filter465Honeywell HRF-R3 FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Coway AP-1512HHTrue HEPA Filter, Ionic Filter, Carbon Filter361Coway AP-1512HH FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Biota Bot MM208True HEPA Filter, UV Light Filter, Carbon Filter, Ionic Filter430Biota Bot FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Philips Air AC5659/40 5000iTrue HEPA Filter, Carbon Filter453Philips Air FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Oransi ERIK650ATrue HEPA Filter, Carbon Filter1700Oransi FilterRead More
best air purifiers for allergies and asthmaBest Air Purifiers for Allergies and Asthma in 2018Blueair Classic 605 Air PurifierTrue HEPA Filter, Carbon Filter775Blueair Classic FilterRead More
best air purifiers for officeBest Air Purifiers for Allergies and Asthma in 2018IQAir HealthPro Plus Air PurifierTrue HEPA Filter, Carbon Filter1125IQAir FilterRead More

Top 10 Best Air Purifiers for Allergies and Asthma in 2018 List

1) Rabbit Air MinusA2 – Best overall air purifier for allergies and asthma in 2018

There’s been a load of stunning best air purifiers for allergies and asthma in 2018, yet the Rabbit Air MinusA2 is certainly the one with the most features. As we stated clearly in our list of Best Air Purifiers in 2018, the reason Rabbit Air MinusA2 is the winner because this air purifier is having the highest performance/value at the moment.

best air purifiers

It packs an unique 6-stage air filtration system to guarantee the best prevention for allergies and asthma as below:

  • Pre-filter & Medium Filter – Double the pre-filtration means double the effectiveness against allergens. These 2-layer filters will guarantee to trap all large and medium particles, for example dust mites, pet hair, large pollen, pet dander, mold and dust particles.
  • Advanced BioGS HEPA Filter – It is a True HEPA Filter that captures 99.97% of all allergens, bacteria, virus particles, pollen, mold and fungi particles down to 0.3 microns. Rabbit Air advances their air filter process, therefore prolong optimal filter efficiency and filter life of their HEPA Filter.
  • Customized Filter – Double the protection with a variety of customized filters for specific needs like Germ Defense, Pet Allergy, Odor Remover, or Toxin Absorber. You can tailor the MinusA2 air purifier to fit your personal needs.
  • Activated Carbon Filter – Eliminates household and cooking odors, tobacco smokes and exhaust fumes and VOCs.
  • Ion Generator – Rabbit Air MinusA2 still has ionizer technology to trap even the tiniest particles of pollutant back into other filters. Can be switched on/off.

Expert tips: The amount of ozone is about 0.002 ppm, which is 25 times less than the 0.05 ppm maximum ozone safety standard set by California Air Resource Board.

For performance rating, these high quality filters will rest assured that you will live without allergens, and no allergens, no allergies and asthma. Rabbit Air MinusA2 operates very quietly with the Ultra Quiet technology. There will be no asthma triggers when you’re sleeping.

Also, what makes this air purifier a high-end device is that all its features work fantastically well. The Smart Sensor is truly “smart” to adjust this fan speed automatically to suit the current air quality, to save the energy better. And the Wifi capability is stable and useful.

The only real minus we have with this MinusA2 is the low CADR of 200 Dust/ 193 Smoke/ 208 Pollen and 4X ACH. For a mid-range air purifiers, we expect a higher CADR to fit the 815 sq ft room coverage stated in Rabbit Air manual.

Here is the pros/cons of Rabbit Air MinusA2

PROS


  • Top-notch performance
  • Advanced Air Filtration process
  • Smart Features like Smart Sensor and Wifi Capability
  • Ultra Quiet
  • 5-year warranty
CONS


  • Low CADR in mid-range segment

Review: Rabbit Air MinusA2 Review.

Related post: Best air purifiers in 2018 list.

2) GermGuardian AC4300BPTCA – Best $100 Air Purifier in 2018

The best budget air purifier you can buy right now for your allergies and asthma solution is GermGuardian AC4300BPTCA. We’ve loved entries in GermGuardian air purifiers before, and GermGuardian AC4300BPTCA could be one of the best yet.

best air purifiers for allergies and asthma

GermGuardian AC4300BPTCA has a lovely modern outfit and a fantastic air filtration process for a $100 air purifier. You will feel really good after using it because of the 3-in-1 air cleaning system of GermGuardian is including of these below filters:

  • True HEPA Filter – Claims to capture 99% of microscopic allergens, dust and mold spores down to 0.3 microns in size.
  • Activated Carbon Filter – Reduces odors created from smoke, cooking, and pets.
  • UV-C Light – The powerful technology to kill airborne bacteria, viruses and mold spores that cause health issues, but is harmless to human.

In low-range segment under $100 in 2018, we will not find any air purifier can work like GermGuardian AC4300BPTCA. The air filtration system churns through most cleaning tasks with ease.

For the price, you will have a good CADR of 107 Dust/ 99 Smoke/ 116 Pollen. Combining with a 4X ACH, this air purifier can clean a room of 153 sq ft effectively.

Our only real disappointment is its noise level. As a budget air purifier, it seems GermGuardian will trade off the performance with the quietness. If the noise is one of your asthma triggers, you should consider not using GermGuardian AC4300BPTCA while sleeping.

Here is the pros/cons of GermGuardian AC4300BPTCA

PROS


  • Great performance rating
  • Powerful air filtration process
  • Best Deal for low-range segment
  • 3-year warranty
CONS


  • Quite noisy

Review: GermGuardian AC4300BPTCA Review.

3) Levoit LV-PUR131 – Pay a bit more for extra good features

With Levoit LV-H132 is the #1 Amazon Best Seller for air purifier in 2018, you can pay a bit more for extra features air purifier of Levoit brand – the Levoit LV-PUR31.

best air purifiers for allergies and asthma

$200 is the upper limit of the affordable air purifier market, but when it comes to value for money, it’s hard to beat the Levoit LV-PUR131.

  • Pre-filter – A fine preliminary filter acts as a trap to large particles of pollutants. You can wash or vacuum this pre-filter often to increase the efficiency.
  • True HEPA filter – A True HEPA Filter can reduce 99.97% of down to 0.3 microns dust mites allergens, virus particles, pollen, bacteria particles.
  • Activated Carbon Filter – Captures and neutralizes various household odors such as cooking smells, pet odors, and cigarette smoke.

The performance rating of air cleaning is great and stable, makes it an ideal option for those who have serious allergies and asthma problems. Also, it seems Levoit LV-PUR131 follows the same strategy as past Levoit air purifiers. It aims to offer users the best parts of Levoit’s Smart features, with a few minor hardware compromises. The end result is a beautiful, feature-packed device with features and air filters traditionally seen on significantly more expensive machines.

Levoit LV-PUR31 is really quiet, with the noise is one step lower than other air purifiers at highest settings and a Sleep Mode, Levoit LV-PUR31 is certainly the chosen one for those who have trouble with sleeping.

The only slight downside is the low CADR of 135 cfm and a 2X ACH. For a room coverage of 328 sq ft, it takes Levoit LV-PUR131 longer to fully clean than other devices with same room capability.

Here is the pros/cons of Levoit LV-PUR131

PROS


  • Great performance rating
  • Powerful air filtration process
  • Smart Features like Smart Sensor
  • Very quiet
CONS


  • Motor becomes hot after months of using
  • Low CADR and ACH

Review: Levoit LV-PUR131 Review.

Related post: Best Air Purifiers for Bedroom in 2018.

4) Honeywell HPA300 – True Allergen Remover in Low-range

As the name implies, Honeywell HPA300 is a true Allergen remover with the highest performance rating among the low-range air purifiers market.

best air purifiers for allergies and asthma

Honeywell HPA300 is far from flashy, but if it’s value for money you’re after then you can’t go wrong. Let’s look at this natural power:

  • Pre-filter – The pre-filter has Activated Carbon filter in it. With this, every issue of allergies and smoke asthma of you won’t linger anymore. However, you need to replace this pre-filter after 3 months.
  • True HEPA filter – The powerful True HEPA filter can capture up to 99.97% of as small as 0.3 microns pollutant particles like pet dander, mold, bacteria and pollen. This Allergen Remover can even capture the 0.005 microns viruses.

The ACH here is a powerful 5X and an amazing CADR of 320 Dust/300 Smoke/300 Pollen makes you believe that you won’t go wrong. This fan power is on par with even mid-range budget air purifiers. Honeywell HPA300 is effective for up to 465 sq ft.

Our only real quibble is the noise level of this air purifier. With the same budget, Levoit LV-PUR131 is much quieter than Honeywell HPA300.

Here is the pros/cons of Honeywell HPA300

PROS


  • High performance rating True HEPA Filter
  • High fan power
  • High CADR and ACH
  • 5-year warranty
CONS


  • Lack of Smart Features
  • Quite noisy

Review: Honeywell HPA300 Review.

5) Coway AP-1512HH – Best value for $200 in 2018

The Korean #1 brand for air purifier – Coway is making their proud Coway AP-1512HH the #3 Amazon Best seller for air purifiers in 2018. If you want a complete best air purifiers for allergies and asthma then this device could be for you.

best air purifiers for allergies and asthma

With the 4-stage air purification system, Coway AP-1512HH receives lots of positive reviews as “Best Air Purifier” last year. The performance rating of this air purifier is the same with the powerful Honeywell HPA300, and therefore, is a real deal to allergens and asthma triggers.

  • Pre-filter – A washable pre-filter will help you capture the large particles of contaminants, from pet hair, human hair and mold.
  • Activated Carbon Filter – This filter works its best to deodorize and trap harmful gas to keep your place fresh and odor-free.
  • True HEPA filter – The high-performance composite True HEPA Filter that captures 99.97% of down to 0.3 microns allergens, virus particles, pollen, mold and fungi particles.
  • Ionic Technology – Vital ionize can trap even the tiniest airborne particles and send it back to other filters. Can be switched on/off.

The sound is impressively quiet. With Eco Mode (Coway’s Smart Sensor), Coway AP-1512HH will always run at the low setting for virtually no sound and saving energy. Therefore, it is also one of the best air purifiers for bedroom in 2018.

ACH is 5X with CADR of 246 Dust/ 233 Smoke/ 240 Pollen, up to 361 sq ft room coverage.

Here is the pros/cons of Coway AP-1512HH

PROS


  • Amazing performance rating
  • Advanced air filtration process
  • Smart Features like Smart Sensor and Eco Mode
  • Good ACH and CADR
  • 3-year warranty
CONS


  • The top light can’t be turned off

Review: Coway AP-1512HH Review.

Related post: Best Air Purifiers for Smokers in 2018.

6) Biota Bot MM208 – Great performance for the price

Biota Bot is one of the most recognized Air Purifier Retailers with several products in top Amazon Best Sellers of air purifiers in 2018. For the best air purifier for allergies and asthma in 2018, we choose Biota Bot MM208.

best air purifiers for allergies and asthma

With a 5-stage air filtration, Biota Bot MM208 has a pre-filter, a True HEPA filter, an Activated Carbon filter and an UV-C Light filter. This air filtration process remains some of the best in the business with amazing performance for the price.

  • Pre-filter – A normal pre-filter is ready to capture the large particles like pet hair, large dust and dust mites.
  • True HEPA Filter – The powerful True HEPA filter does a great job at trapping 99.97% of airborne pollutants.
  • Activated Carbon Filter – Reduces odors created from smoke, cooking, and pets.
  • UV-C Light – One of the best UV-C light to help kill airborne bacteria, viruses and mold spores and guarantee no allergens in the air.
  • Anion Feature – An ionic filter which can release 10 million negative ions per second to enhance the air filtration process. Can be switched on/off.

Thanks to the addition of the Sleep Mode, the noise of Biota Bot MM208 is greatly reduced during your sleep. However, in the highest setting, we experience a loud noise level. If sound is one of your asthma triggers, you should be careful to switch to highest setting.

With the normal ACH of 2X, this air purifier can cover up to 430 sq ft.

Here is the pros/cons of Biota Bot #MM208

PROS


  • Good performance rating
  • Powerful air filtration process
  • The Sleep Mode is a gold feature
  • 3-year warranty
CONS


  • Noisy at highest setting

Review: Biota Bot MM208 Review.

Related post: Best Air Purifiers for Mold in 2018.

7) Philips Air AC5659/40 5000i – Great for both performance and value

The Dutch technology Philips is always a big electronics brand, and it is quite recommended to consider this brand’s latest air purifier in our list of Best air purifiers for allergies and asthma. Let’s check Philips Air AC5659/40 5000i.

best air purifiers for allergies and asthma

This is one of the best air purifier for allergies and asthma in 2018 you can get in mid-range. In order to be so powerful, Philips Air 5000i has 6 filter layers, with 3 of them at each side.

  • Pre-filter – A normal pre-filter is ready to capture the large particles like pet hair, large dust and dust mites.
  • True HEPA Filter – Philips NanoProtect HEPA Series 3 filter is made of high quality material. It can capture up to 99.97% of particles even as small as 0.3 microns – the size of most common airborne allergens, harmful particles, bacteria and viruses. You need to replace this filter after 12 months.
  • Activated Carbon Filter – Honeycomb structured active carbon filter provides effective removal of TVOC and odors. You should remember to replace it after 6 months of using.

Fun facts: All Philips Air True HEPA air purifiers are tested by Nelson Laboratories Test in 2016.

Beside the powerful performance, Philips Air AC5659/40 5000i has a great Extra-sensitive Allergen mode to combat with these allergies and asthma. This mode will react with even the slightest change of air in indoor allergen level and responds instantly to return indoor allergens to a safe level.

The sound from Philips Air 5000i is extremely quiet. In Sleep Mode, display lights are dimmed and Philips Air 5000i operates in near silence.

The ACH is 4X-5X (4.6 air changes per hour) with a 293 cfm CADR, it perfectly fits for room of 454 sq ft.

In addition to the power itself, Philips Air 5000i also comes with Smart features like Smart Sensor to adjust fan speed automatically and Smartphone app to control your air purifier anytime and anywhere. With these functions, we believe that those who suffer from (especially) allergies and asthma should consider Philips Air 5000i as their lifesaver.

Here is the pros/cons of Philips Air AC5659/40 5000i

PROS


  • Stunning performance rating
  • High ACH and CADR
  • Smart Features like Smart Sensor and Allergy Mode
  • Very quiet
  • 2-year warranty
CONS


  • App has many bugs
  • Problem with wifi connection

Review: Philips Air AC5659/40 5000i Review.

Related post: Best air purifiers for Pets in 2018.

8) Oransi ERIK650A – Powerful overall performance

Oransi is the only brand dares to claim be #1 HEPA Air Purifier in 2018. And their latest air purifier, Oransi ERIK650A would be the perfect one for us to test their quality.

best air purifiers for allergies and asthma

Well, maybe the title of “best HEPA Air purifier” is not just saying. To meet the demands of a good True HEPA filter, Oransi ERIK650A names its MERV18 HEPA filter for a combination of these powerful filters as below:  and a 12” deep main HEPA filter.

  • Pre-filter – A 4” deep GAC impregnated Activated Carbon/potassium pre-filter. This is one of the best pre-filter system we have ever seen. The pre-filter can capture 85% of contaminant particles down to 0.3 microns before it could meet the powerful True HEPA filter.
  • True HEPA Filter – A 12” deep main HEPA filter which Oransi claims to remove 99.99% of all particles.

You could believe that these filters won’t let any types of contaminants get out. Even the pre-filter can capture 85% of contaminant particles down to 0.3 microns. People who suffers from allergies and asthma will be very pleased with this mid-high range air purifier.

The sound from ERIK650A is quite loud at the start, and then decrease as the rotor and field is coming into sync. For a large room air purifier, the noise level of Oransi ERIK650A is reasonable, but is still quite higher than others in this list.

For ACH, it is 4X to 6X with a maximum of 413 cfm CADR, capable of covering an area up to 1700 sq ft. Strong ACH and CADR help fresh your air zone greater.

Here is the pros/cons of Oransi ERIK650A

PROS


  • Awesome performance rating
  • Large coverage, high ACH and CADR
  • 10-year warranty
CONS


  • High-range budget
  • Not so quiet at first

Review: Oransi ERIK650A Review.

Related post: Best air purifiers for office in 2018.

9) Blueair Classic 605 – High Performance Rating True HEPA filter

Blueair is also a well-known brand in air purifier market for about 20 years. With lots of experience in air purifiers, we hope Blueair Classic 605 will stay on top of the best air purifiers for allergies and asthma.

best air purifiers for allergies and asthma

Blueair Classic 605 vows to fight allergies, asthma and hay attack with its powerful HEPASilent filter – a combination of both True HEPA filter and Activated Carbon filter. As a result, this air purifier from Blueair is perfect for allergy and asthma suffers with the ability to capture 99.97% airborne particles down to 0.3 microns.

It is completely silent at low setting thanks to the HEPASilent Technology. With this technology, you will experience almost no sound.

The ACH is 5X at the highest fan speed, with CADR of 500 Dust/ 500 Smoke/ 640 Pollen in an area of up to 775 sq ft.

Moreover, you will have the Smart Sensor in Blueair Classic 605 to help automatically adjust fan speed according to air quality. Also, as this air purifier is certified by Alexa Amazon, you can easily control it via Alexa devices.

Here is the pros/cons of Blueair Classic 605

PROS


  • Fantastic fan power
  • Top-notch performance rating
  • Well-built with highest quality materials
  • Smart Features like Smart Sensor
  • 5-year warranty
CONS


  • Noisy than normal air purifiers
  • The machine is big and heavy

Review: Blueair Classic 605 Review.

Related post: Best Large Room Air Purifiers in 2018.

10) IQAir HeathPro Plus – High-range solution for Allergies and Asthma Problems

If you really care for your allergies and asthma, you should focus on a air purifier with a medical-grade certificate like IQAir HealthPro Plus. A latest product from a long history air purifier’s brand, what could we expect from this new monster?

best air purifiers for office

We expect no less than a top-notch 3-stage air filtration system from this high-range air purifier. This proves to be the most reliable technology in the world to help filter all these contaminants out and make fresh home air quality better.

  • Pre-filter – The Micro-particle filtration is the the preliminary elimination to even the micro-particles such as pollen, pet dander, and mold spores after air is drawn in through the air intake.
  • V5-Cell Gas & Odor filter – Next, you will experience the powerful V5-Cell Gas & Odor filter (exclusively for IQAir air purifiers). With both high quality granular activated carbon adsorption and pelletized chemisorption, this filter will destroy any harmful VOCs and chemicals. Moreover, the average filter life is about 2 years, effectively reduce the cost of filter replacement.
  • True HEPA Filter – IQAir uses an unequalled HyperHEPA filter which can capture 99% of down to 0.3 microns particles and even 95% of particles down to 0.003 microns.

There should be no more quarrel for the world class performance rating of IQAir air purifiers, especially the latest IQAir HealthPro Plus. This air purifier advances the latest powerful HyperHEPA filter H12/13, which is even better than the powerful IQAir GC MultiGas. Most importantly, the average filter life of this True HEPA filter is approximately 4 years, which is undeniable the best HEPA technology up until now in the world.

The silence of this air purifier is truly gold, just like any other Swiss-model air purifiers of IQAir. For a large room air purifier, IQAIr HealthPro Plus only has the same noise level as other small air purifiers, which is even better than the Best Seller Levoit LV-H132.

The ACH is upto 5X, with CADR of 300 cfm and up to 776 cfm. This air purifier is an killer for an area of 1125 sq ft.

Here is the pros/cons of IQAir HealthPro Plus

PROS


  • Perfect performance rating
  • Well-built with highest quality materials
  • Remarkable Technology and Fan Power
  • Smart Features like Smart Sensor
  • Impressive quiet
  • 5-year warranty
CONS


  • High-range segment machine

Review: IQAir HealthPro Plus Review.

Related post: Best Air Purifiers for Dust in 2018.

What are allergies and asthma?

1) Allergies

An allergy is a sensitivity in your immune system. They are common and can’t be cured.

The most common allergies are hay fever, allergic asthma, food allergies and allergies from airborne allergens.

Airborne allergens can be dust, dust mites, pollen, mold, fungi spores, pet dander, pet hair, tobacco smoke and a numerous of other pollutants.  These airborne particles range in size from 0.3 microns and larger.

2) Asthma

Loss of breath, dizziness, wheezing, and coughing are a few symptoms of an asthma attack and can be very dangerous for who suffer from asthma.

Asthma is a common respiratory condition in adults and children that can be passed on genetically or developed throughout life. An asthma attack occurs when a sufferer’s airways to the lungs become narrowed and inflamed.

The main triggers of an asthma attack include contaminant particles such as pollen and dust, as well as chemicals like paint fumes and tobacco smoke.

Why air purifier is necessary for allergies and asthma?

According to Asthma and Allergy Foundation of American (AAFA), more than 50 million Americans have experienced various types of allergies each year. And it can cause death, seriously! Also, the annual cost of allergies exceeds $18 billion.

These numbers won’t lie, you can keep reading the allergy fact from AAFA’s website.

Because you are in the allergies and asthma group, you must have researched for millions of methods to help you reduce, or even cure the allergies. Then you find out there is no cure. Only prevention. And one of the most advised method to prevent allergies and asthma today is finding the best air purifiers for allergies.

Most of the causes of allergies and asthma are from airborne contaminant particles, which can be reduced ultimately with a best air purifier for allergies and asthma.

Remember, the better you can remove the airborne pollutant particles, the better life you will have without allergies and asthma.

Important Note: Allergies and asthma causes are varied, not just by airborne particles. So air purifier can not be a substitute to other necessary treatments.

Terminology and Definition for best air purifiers for allergies and asthma in 2018

For the complete buying guide in 2018, you can read here.

Pre-filter – An essential feature of air purifiers that use a HEPA style filter. The pre-filter captures the large dust and pet dander to help prolong the life time of the main filter. Most pre-filters are washable and reusable and last a lifetime.

True HEPA Filter – This is the highest standard air filter you can get for a best air purifier. In order to carry this label, the filter must meet strict regulations set by the United States Department of Energy (DOE) and capture at least 99.97% of particles as small as 0.3 microns. A true HEPA filter needs to be replaced after 6 months to 1 year, and you should use the suitable replacement for your air purifiers.

Activated Carbon (or Charcoal) Filter – This filter can absorb odorous particles and gases. That’s why it can remove the smells produced by smoke, pets, cooking, chemicals, etc.

Ionic Filter (or Ionizer) – This filter emits negative ions to charge small particles like dust, pollen and bacteria and collect them into a plate.

UV-C Light – The Ultra Violet light destroy bacteria and virus by sterilizing them. The UV-C Light (UV Light type C) is harmless to human.

Advanced BioGS HEPA Filter – A technology from Rabbit Air, to help prolong the life of the main True HEPA filter.

ACH – Stands for “Air Changes Per Hour”, tells you how many times the device can exchange the air within a room with clean, fresh air every hour.

CADR – Stands for “Clean Air Delivery Rate”, tells exactly how well an air purifier can clean the air within a particular size room.

We hope this list of best air purifiers for allergies and asthma is good for you. Hope you a healthy life. Thank you!

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