Best Air Purifier for Asthma and Allergies

2019 Best Air Purifier for Asthma and Allergies

Asthmatic person that is hyper-sensitive to almost anything? Stick around as we hand-picked the best air purifier for asthma and allergies currently available. In this post, we will briefly go through the preventive measures and then focus on the air cleaner method. we will also touch on the root cause of asthma, what allergens commonly associated with it and who is this for. At the end of the post, you will know which air purifier is the best to partner you in the ever-lasting battle.

What causes asthma?

Asthma is a chronic lung disease that inflames and narrows the breathing airways. Regardless of how severe the condition is, untreated asthma can kill within minutes. According to studies, one-third of children that died only have mild intermittent asthma. An asthma attack is often triggered by allergens such as pollen, mold, dust mite, smoke or even odor. Symptoms include long coughing, wheezing, shortness of breath and chest pain/ tightness. While there is no permanent cure, it is controllable where people can still live a normal, active life. A HEPA air purifier would help reduce the numbers of airborne triggerers indoor.

How do we measure?
Pre-filter Believe it or not, dust and hair do trigger asthma. What's worst is the allergens i.e. dust mites, pet dander, pollen that travels along. A good pre-filter will stop large airborne particles from flowing to the next stage. It will also reduce the dependencies of HEPA and carbon filter for best efficiency. What we are looking for is a dependable pre-filter whether in the form of a permanent or 2-in-1 carbon filter.
HEPA filter HEPA or high-efficiency particulate air is the key ingredient to fight against allergies. Common allergens e.g. pollen from a tree, dust mites on mattress and chemicals from paint are what often trigger asthma. A good HEPA filter not only captures all that, it will also capture other micron size allergens. Our criteria are simple. The HEPA filter must have the capability to capture the aforementioned household allergens. Only then we will look at the compatibleness with its pre-filter and carbon filter.
Activated Carbon filter Little do people know that good or bad odors can trigger an asthma attack. Example of good odors coming from food, flower, or perfume. Bad odors such as mold musty smell, detergent fume, cigarette smoke, or VOCs. The carbon filter must be able to filter out all smoke-based particles before we inhale it to our lungs. The deodorization filter must also play nice with the previous two filters.

Who is this for?

An asthmatic person would be first in line regardless of gender, age group or race. People that are hyper-sensitive to allergens and odors would benefit from one as well. Newborn, infant, children, elderly or recovering patient that has weakened immune system. Finally, anyone that wants clean air with as little airborne contaminants as possible.
For specialized air purifiers that focus on pet-related allergies, see Best Air Purifier for Pet Hair, Odors and Allergies.

Best Air Purifier for Asthma and Allergies 2019

pre-filter
With
PreMax Filter F8 (S)
HEPA filter
With
HyperHEPA Filter H12/13 (L)
carbon filter
With
V5-Cell Gas & Odor Filter MG

The first one needs no introduction. Rated number 1 room air purifier for allergies, IQAir features in almost every of our list. The strong airflow combines well with the excellent PreMax, HyperHEPA, and V5-Cell Gas & Odor filter. Whether is germs, smoke, and odors, nothing is impossible for the air purifier. Airborne allergens as small as 0.003 microns size (Yes you read it right) would not be able to bypass the filter. The wide purifying and 320-degree distribution also mean it is great for the whole family. IQAir HealthPro Plus is perfect to be placed in living hall.

The trade-off for being the absolute best air purifier for asthma is of course the premium price tag. Not only it will not fit into everyone budget, the bulkiness makes it slight overkill for bedroom use. If pricing is one of your key concern, consider the much more budget-friendly HPA300.
  • Made in Switzerland craftsmanship with strong impact resistant ABS plastic and zero-leak triple-seal technology.
  • PreMax pre-filter that is capable of capturing both large and micro-particles such as pollen, spores, mold.
  • Effective V5-Cell MG Granular activated Carbon filter that absorb and eradicate all types smoke and odor.
  • HyperHEPA is the best True HEPA filter we reviewed that is capable of trapping ultra-particles down to 0.003 microns.
  • Long-lasting filter. True HEPA filter has 4 years lifespan, Carbon filter has 2 years lifespan and even pre-filter has a 18 months lifespan.
  • Certified quality and performance. Each air purifier are individually tested to ensure the air purifier meets the strict specifications.
  • Noise level is considerably low in its segment given the air purifier airflow strength and speed.
  • Powerful 320 degree airflow distribution that provides one of the widest purifying coverage.
  • Up to 6 selectable fanspeed that can also be adjusted via remote control.
  • Built-in programmable timer that allows specific fanspeed, time, day or week scheduling.
  • Easy layer filter replacement that slides out individually instead of conventional front cover style.
  • Industrial leading 10 years warranty.
  • Very expensive (3 times of standard air purifier price).
  • No dust & odor sensors = no automatic fan speed setting and air quality indicator.
  • Bulky and heavy that is difficult to move around even with carrying handle and casters.
MRSP/ RSP**
± 899 p
     Annual filter ^    
± 152 p
Online price*
Latest Amazon price
pre-filter
With
Pre-filter (2 pack)
HEPA filter
With
Max2 (Green True HEPA filter)
carbon filter
With
Max2 (Activated carbon filter)

Another premium air purifier for asthma and allergies to go for. Airmega is known for many things, the superb HEPA filtration is what we will be focusing on. Irritants like bacteria and viruses are tricky to take down due to their microscopic size. With a HEPA filter, none of this asthma aggravator stands a chance. The same theory applies to the carbon filter that handles smoke/ odor with ease. As a premium model, Airmega 300 also comes with tons of features like timer, Auto/ Sleep mode. All S variant gets additional Wi-Fi support for remote access.

Like IQAir, Airmega 300 is an excellent air purifier with dynamic airflow distribution. However, it will cost you a bomb in long-run when you include the expensive replacement filter set. Since Airmega is also part of Coway brand, you could always opt for the cheaper Coway AP-1512HH.
  • Very wide purifying coverage despite being the least expensive in its series.
  • Dual pre-filter that traps large particles coming from both sides. Also protect and extent the inner filter lifespan.
  • Excellent allergens and smoke filtration via its Green True HEPA/ Carbon filter.
  • Auto mode that is sensitive to surrounding air quality.
  • Separate Pre-filter and MAX2 filter lifetime indicator.
  • Built-in timer without having to rely on the app.
  • Clear and accurate real-time air quality display indicator.
  • Acceptable annual Max2 filter replacement cost for its higher-end category.
  • 5 years official warranty from Coway.
  • Still expensive despite being the cheapest model in the group.
  • After online discounted price, you only need to top up a little bit more for the Wi-Fi version (300S).
  • Lacks auto sleep mode and real-time filter replacement indicator found in 400/ 400S models.
  • No Ionizer as an additional filtration option.
MRSP/ RSP**
± 649 p
     Annual filter ^    
± 100 p
Online price*
Latest Amazon price
pre-filter
With
Pre-filter
HEPA filter
With
True HEPA filter

A highly endorsed air purifier by Wirecutter and fans all over the world. Coway Mighty might be a dark horse given its long-existing timeline, it still has plenty of say here. Why include mighty in our best air purifier for Asthma list? First, it passed with flying colors for its trinity filtration (pre-filter, HEPA, and Carbon filter). Second, the air purifier decent airflow delivery provide swift allergens and odors removal. Last and perhaps more significantly, the pricing work as it’s accessible to everyone. In short, if you need a solid, dependable yet reasonably price air purifier, Coway AP-1512HH is your call.

Non-allergy related issues, since it's been in the market for a while, it does not have the techiest design. There are also few complaints about the after-service support or lack of it. Things probably changed (improved) due to the recent branding tied back with Airmega.
  • Well-priced for a powerful 4-stage filtration air purifier.
  • Very low annual filter replacement fees. Cost only 1/3 of some premium air purifier.
  • Decent purifying coverage capable of catering for large room size.
  • Genuine True HEPA filter that compliments well with the pre-filter, deodorization, and ionizer.
  • Sensor comes with 3 adjustable preset setting plus the availability of Auto mode and timer features.
  • Energy Saving Eco mode that will stop the fan from spinning when no pollutants are detected for 30 minutes.
  • 2 Separate HEPA and Odor filter replacement indicator.
  • Particle sensors occasionally take its time to detect nearby pollutants even though it is set to "sensitive" level.
  • Carbon filter lifespan is shorter than the market average of 1 year.
  • not known to have the most responsive customer service support (things might have improved recently).
MRSP/ RSP**
± 222.99 p
     Annual filter ^    
± 47 p
Online price*
Latest Amazon price
pre-filter
With
HRF-AP1 Filter A Universal Carbon Pre-filter (1 pack)
HEPA filter
With
HRF-R3 Honeywell Filter R True HEPA (3 pack)

No surprise here. Honeywell HPA300 is our bang for the buck air purifier for asthma and allergies. What makes it great is the cost per performance against common allergens. A brand-new HPA300 is priced a few times less than other large room size category air purifiers. Going inside, the carbon pre-filter would have no issue trapping large particles/ odors. At the same time, it will free up space for the True HEPA filter to capture smaller irritants. Top it off with the outstanding 300+ cfm CADR and wide 465 sq. ft. purifying coverage.

Nitpicking on its downside, HPA300 usability could be a lot better. it could do with air quality sensors and digital display for better readability. However, given the brand reputation and the price you paid, we could be asking too much from it.
  • Very reasonable price with exceptional purifying coverage and CADR.
  • Adjustable 4 fan speed including Turbo mode.
  • Dual function Carbon Pre-filter that is good against dust and mild gas based particles.
  • Proven True-HEPA filter that is very effective against fine airborne particles.
  • Separate electronic filter change reminder with one for HEPA and the other for carbon pre-filter.
  • Dedicated light dimming option and 3 pre-set timer.
  • 5 years warranty.
  • Lacks air quality sensor therefore no Auto mode and air quality indicator.
  • Slightly expensive annual filter replacement cost.
  • Touch buttons is not the most pleasant to operate with little feedback.
MRSP/ RSP**
± 299.95 p
     Annual filter ^    
± 108 p
Online price*
Latest Amazon price
pre-filter
With
Large Particle Pre-filter
HEPA filter
With
60 sq.ft. True Medical Grade HEPA
carbon filter
With
Activated Military Carbon Cloth

Food, scented candles to stress, and laughter could potentially aggravate asthma. While there is no air purifier in the world able to "filter" out laughter, Allergy Machine will do a fine job handling the rest. Out of the many Austin Air variants, we pick the low-maintenance Allergy Machine as an example. From the name itself, you'll know it is effective against irritants that are not too kind to asthmatic person. Combining the 60 sq.ft. HEPA filter and HEGA filter, no allergens would be able to bypass the 4-stage filtration.

There is 2 version of Allergy Machine to choose from. You could either go with the standard version which is what we are reviewing or the smaller Jr model. Junior model is cheaper and with only airflow delivery to compromise. What both version lack is the practicality gadget that is in the next asthma air purifier.
  • Activated military grade carbon HEGA filter that is great for people that are sensitive to allergens.
  • Consistent airflow with wide purifying coverage.
  • Comprehensive filtration thanks to the trio pre-filter and reliable 60 sq. ft. certified HEPA filter.
  • No off-gassing as the exterior is made entirely from powdered coated steel.
  • Long-life (up to 5 years), low maintenance cost filter.
  • 5 years warranty.
  • Clearly audible noise level that is not great for night use.
  • Lighter but overall still bulky that requires casters support.
  • Hassle filter change from bottom rather than pop out cover.
  • Empty on features. Lacks auto/ sleep mode, air quality sensors, digital screen indicator and timer.
MRSP/ RSP**
± 575 p
     Annual filter ^    
± 50 p
Online price*
Latest Amazon price
N/A
pre-filter
With
Pre-filter
HEPA filter
With
True-HEPA filter
carbon filter
With
Coated Deodorization (CD) Carbon Filter

The alternate, non-WiFi version to HR1000. Winix HR950 is one of the best allergens removers thanks to the awesome 5-stage filtration. The preliminary Pre-filter plays a vital role in removing large particles including dander. Next, the protected HEPA filter would then focus on trapping microorganisms. The likes of mold or bacteria will not be able to grow as the Anti-microbial coating prohibits that. The carbon filter and PlasmaWave will now eliminate any leftover smoke/ odor particles. Did we mention AQ indicator, Auto mode, timer, and godsend child-lock features is in its spec?

There must be a few downsides, none so than the pricey annual filter replacement cost. Even though it's not costliest in the list, but in a short few years, the filter cost will overtake the selling price. For a way cheaper asthma fighter air purifier, consider Winix 5500-2.
  • 5-stage filtration with PlasmaWave™ Technology.
  • Effective True HEPA filter coated with Anti-microbial protection.
  • Coated Deodorization (CD) carbon filter that will remove most indoor smoke and odors.
  • High CADR output supported with 4 speed plus Auto mode/ Sleep mode.
  • Sensitive dual sensors (Particle, VOC) with color based air quality indicator.
  • Child lock feature that prevents children from meddling on the setting.
  • Built-in timer with 3 pre-set setting (1, 4, 8 hours).
  • 2 years warranty.
  • Online pricing is rather close to HR1000 that offers additional WiFi support.
  • Filter replacement is on the high side and has to be done on a yearly basis.
  • In sleep mode, the indicator light does not dim down enough to prevent a slight glare disturbance.
  • A remote control would be nice as it is available in some of the lower end models.
MRSP/ RSP**
± 329.99 p
     Annual filter ^    
± 100 p
Online price*
Latest Amazon price
pre-filter
With
MinusA2 Pre-filter
HEPA filter
With
MinusA2 HEPA Filter
carbon filter
With
MinusA2 Charcoal-Based Activated Carbon Filter

Another regular sitter in the list. If you are impressed by Winix 5-stage filtration, Rabbit Air MinusA2 will blow your mind off. It is a 6-stage filtration squeezed it in a frame size body. The first stage pre-filter stops airborne dust, hair filled with allergens. Without the pesky large particles, microbes will now have to go through a long journey of purification. Starting with a medium filter, HEPA filter, and a customized filter (Any will do). Any uncaptured smoke will be taken care of by the Charcoal-Based activated carbon filter. Finally, the negative ion generator will charge up any particles for the next cycle. This is the prime example on how to design a beautiful air purifier that still works wonders.

Nothing makes an asthmatic person feel safe surrounded with purified, clean air. The downside for such an aesthetically outstanding air purifier is the cost. Everything from the base price, filter add-on, and even design panel would cost you top dollar. If you are willing to part with 2 less filtrations, we highly recommend the cheaper Rabbit Air BioGS.
  • Comprehensive 6-stage filtration with all-round air inlet.
  • Cheap annual filter replacement cost.
  • Beautiful, wall-mountable square design with mood light color bar.
  • Many customized front panel design to choose from (optional purchase).
  • Effective trio front line filtration (Pre-filter, Medium and HEPA filter).
  • Customizable filter, AC carbon filter and Ionizer to top if off the air purifier filtration depth.
  • 5 fanspeed with strong airflow performance and purifying coverage.
  • Trio sensors (Particle/ Odor/ Light) thus the existence of Air quality indicator and Auto mode.
  • Sensitive and unobtrusive Sleep mode that will still adjust the fan speed based on surrounding air quality.
  • Five-year warranty with free return if not satisfied.
  • All the bells and whistle translate to a very expensive price tag.
  • Airflow purifying coverage and CADR is not on par with the price you paid.
  • Heavy for a wall-mountable air purifier (more than 19 lb).
MRSP/ RSP**
± 499.95 p
     Annual filter ^    
± 43 - 85 p
Online price*
Latest Amazon price

🏆 Honorable mention

With many great air purifiers for asthma that we do not have time to go through one by one. Below are the few honorable mentions that you should look into as well.

📃 Previous holder

  • GermGuardian AC9200WCA
  • Blueair 405
  • Oransi Max

Best Air Purifier for Asthma and Allergies Comparison Table

Air PurifierFiltrationCoverageScoreOnline Price
IQAir HealthPro Plus4-stage1098 sq. ft. (102 m2)9.6
Airmega 3004-stage1256 sq. ft. (117 m2)9
Coway AP-1512HH Mighty4-stage326 sq. ft. (30 m2)8.6
Honeywell HPA3003-stage465 sq. ft. (43 m2)8.5
Austin Air Allergy Machine4-stage1500 sq. ft. (139 m2)8.1
Winix HR9505-stage400 sq. ft. (37 m2)8.7
Rabbit Air MinusA2 SPA-700A6-stage700 sq. ft. (65 m2)9.1

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