Best Air Purifier for Asthma and Allergies

Best Air Purifier for Asthma and Allergies (2018 EDITION)

Asthmatic person that is hyper-sensitive to almost any allergens? While there are lot of preventive ways to tackle this issue, the trustworthy air purifier method is what we will be focusing on. In this best air purifier for allergies and asthma post, we will be looking at the root cause of asthma, what allergens commonly associated with it and who is this for. We hand-picked our best asthma air purifier choices based on 3 key factors: Pre-filter, HEPA filter and Carbon filter effectiveness against allergens. At end of the day you should have a clear idea on which asthma air purifier would be best to partner you in the ever-lasting combat against allergens.

What causes asthma?

Asthma is a long-term chronic lung disease that inflames and narrows the breathing airways. Regardless of how mild or severe it is, an untreated asthma can kill within minutes to hours if left untreated. According to study, one third of children that died of asthma had only mild level of disease. Symptom of asthma include coughing, wheezing, shortness of breath and chest pain/ tightness. Airborne allergens such as pollen, mold, dust mites, chemical, smoke or even harmless odor could easily trigger an asthma attack. While there is no cure for asthma, it is treatable and controllable where people with asthma can still live a normal, active lives. Choosing the best air purifier for asthma would significantly reduce the numbers of airborne allergies from spreading indoor.

How do we measure?

Pre-filter Believe it or not, dust and hair does trigger asthma. What's worst is the allergens e.g. as dust mites, pet dander that travel along dust/ pet hair. An asthma air purifier with good pre-filter will remove airborne dust/ hair from flowing and effectively stop all allergens that floats within. The pre-filter would also reduce the dependencies of HEPA and carbon filter that in-return help achieve maximum efficiency on both filters. What we are looking for is an effective pre-filter whether in the form of permanent or 2-in-1 carbon filter that can capture a good amount of airborne dust and hair.
HEPA filter HEPA or high-efficiency particulate air is the key ingredient to fight allergies. Common allergens such as pollen from tree, dust mites on mattress and chemicals from paint is what often trigger asthma. A good HEPA filter not only captures all that, it will also capture other uncommon, micron size allergens that might also be linked with asthma. Our criteria are simple. the HEPA filter must have the capability in capturing all the aforementioned household allergens. Only then we will look into the asthma air purifier purifying efficiency rate and compatibleness with its pre-filter/ carbon filter.
Activated Carbon filter Little do people know that good or bad odors can trigger asthma attack. Example of good odors coming from food, perfume to bad odors such as detergent, cigarette smoke and VOCs are often neglected even by asthmatic person. What carbon filter will do is capture all smoke-based allergens and odors that is not capture by HEPA filter before we inhale it to our lungs. What we want from the carbon filter is exactly that regardless of how strong or stench the odor is. The deodorization filter must also play nice with other filters so the asthma air purifier can have a maximum purifying efficiency.

Who is this for?

First would be asthmatic person regardless of gender, age group or how severe the asthma condition is. People with skin allergies that is very sensitive to pollen. People that is hyper-sensitive to allergens, odors and chemicals would benefit from the air purifier as well. Newborn, infant, children, elderly people or recovering patient that has weaker immune system and finally, anyone that wants clean air free from airborne contaminants.
For specialized air purifiers that focus on pet hair, pet odors and pet related allergies, please visit Best Air Purifier for Pet Hair, Odors and Allergies related issue list.

Best Air Purifier for Asthma and Allergies 2018

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, IQAir HealthPro pretty much features in every of our best list sums up how powerful this allergy removal machine is. Rated number 1 room air purifier for allergies & asthma, whether it is a bacteria related microorganisms or asthma triggering allergies, IQAir HealthPro Plus strong airflow output works well together with the excellent PreMax filter, HyperHEPA filter and V5-Cell Gas & Odor filter with Pelletized chemisorption. Combining all that, IQAir HealthPro Plus ensure no airborne allergens as small as 0.003 microns size (Yes you read it right) would be able to bypass the filter. The wide purifying applicable area and 320 degree airflow distribution also means IQAir HealthPro Plus is great for whole family that is sensitive to allergens. The perfect model for it to be placed in living hall.

The trade-off for being the most powerful, absolute best air purifier for asthma and allergies is of course the premium price tag. Not only it will not fit into everyone budget, the overall bulkiness along with all the extra airflow juice means IQAir HealthPro Plus might not be the best choice for bedroom use. If pricing is one of your key concern, consider the much more budget-friendly Honeywell HPA300 air purifier.
  • 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 300 or in fact all Airmega models is known for many good things, its multi-stage filtration against micron size allergens like germs, bacteria or viruses is what we will be focusing on. As some of asthma triggering allergens are known to be tricky to take down due to its microscopic size, Airmega 300 would eradicate all thanks to the dual pre-filter that does the dirty work right before the HEPA filter and activated carbon filter handle the rest. The high CADR and dynamic airflow distribution that will also swiftly capture airborne allergens within its coverage. As a premium model, Airmega 300 also comes with tons of supportive features including Wi-Fi support if you opt for the S variant.

Like IQair, Airmega 300 is an excellent air purifier for asthma and allergies but it does cost a lot, considerably bulky and the replacement filters is also not cheap. As Airmega is also part of Coway brand, you could always opt for the cheaper but equally popular model Coway AP-1512HH.
  • 4-stage filtration with wide purifying coverage despite being the least expensive model.
  • Dual pre-filter that traps large particles from both side while protecting the HEPA filter and Carbon filter.
  • Excellent allergens and smoke filtration via its HEPA filter and Carbon filter combination Max2 filter.
  • Auto mode that automatically set the fanspeed based on surrounding air quality.
  • Separate Pre-filter and MAX2 filter indicator that based on runtime.
  • Built-in timer without having to rely on app.
  • Clear and accurate real-time air quality display indicator.
  • Reasonable Max2 filter replacement cost that only requires yearly change.
  • 5 years warranty.
  • Still expensive despite being the cheapest in the group.
  • After discount you only need to top up a little bit more to opt for the Wi-Fi version.
  • Lacks auto sleep mode and real-time filter replacement indicator found in 400/ 400S models.
  • No Ionizer as a backup 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 AP-1512HH might be a dark horse given the long existing timeline, it still has plenty of say in our best air purifier for Asthma and allergies list. First off, it passed with flying colors for its prerequisite trinity filtration (pre-filter, HEPA filter and Carbon filter). There are also decent airflow delivery rate and coverage that swiftly remove allergens and odors within a room. Lastly and perhaps more significantly, its pricing work as it’s accessible to everyone. In short, if you need a solid, dependable yet reasonably price and maintainable asthma air purifier, Coway AP-1512HH is your call.

Non-allergies related issues, Coway AP-1512HH is been in the market for a while so naturally it does not have the most modern, techy design. There are also few complains as about the after-service support although things probably changed as the recent branding tied back with Airmega.
  • Well-priced for a 4-stage filtration air purifier.
  • Very low annual filter replacement cost as well.
  • Wide purifying coverage catered for large room size.
  • Uses True HEPA filter which has a better filtration efficiency to compliment the deodorization and pre-filter.
  • The availability of practical Auto mode and timer features.
  • Energy Saving Eco mode that will stop fan from spinning when no pollutants is detected for 30 minutes.
  • 2 Separate HEPA and Odor filter replacement indicator.
  • Particle sensors occasionally fail to detect nearby pollutants which directly affects the usability of Auto mode.
  • Not known to have the best customer service support.
MRSP/ RSP**
± 229.99 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 despite not having the most outstanding airflow performance or filtration level. What makes it great is the cost per performance against common allergens where a brand-new HPA300 would cost few times less than other large room size category air purifiers. The combined Carbon Pre-filter would have no issue removing large particles and odors while at the same time, freeing up space for the True HEPA filter to capture asthma linked allergens and other related irritants. Top it off Honeywell HPA300 300+ cfm CADR and wide 465 sq. ft. purifying coverage is the bundled 2, 4, 8 hours auto-off timer and exceptional 5 years warranty.

Nitpicking on its downside, Honeywell HPA300 could do well with an air quality sensors and digital display for better usability however, given the brand reputation and price you paid, we could be asking too much from this asthma air purifier.
  • Very reasonable price with exceptional purifying coverage and CADR.
  • 4 fanspeed including Turbo mode.
  • Dual combination Carbon Pre-filter that is good against dust and gas based particles.
  • Proven and effective True-HEPA filter against smaller airborne particles.
  • Light dimming option for night use.
  • 3 option pre-set timer.
  • 5 years warranty.
  • Lacks air quality sensor therefore no Auto mode and air quality display.
  • Slightly expensive annual filter replacement cost.
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

Other than airborne allergens, things like food, alcohol, scented candles to the weird one such as stress and laughter could also trigger asthma. While there is no air purifier in the world can "filter" out laughter, Austin Air Allergy Machine will do a damn fine job handling on the allergens part. Out of the many variants of Austin Air purifier, we pick the low-maintenance Allergy Machine as our best air purifier for allergies and asthma simply because it's great against airborne irritants that are not too kind to asthmatic person. Combining the dual pre-filter, 60 sq.ft. HEPA filter and Activated Military Carbon Cloth (HEGA) filter, no allergens in any type of form would be able to smack pass the 4-stage filtration.

There are 2 version of Allergy Machine to choose form. You could either go with the standard version which is what we are reviewing or the smaller, cheaper Jr model with only airflow delivery rate and purifying coverage to compromise. Both version lacks the bells and whistle of the next asthma air purifier in the list that could be very handy in allergy season.
  • 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
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 Winix HR1000, Winix HR950 is consider one of the best allergens remover thanks to the comprehensive 5-stage filtration. Airborne allergens offer travel in large particles such as dust, skin flakes and pet hair., The preliminary Pre-filter plays a vital role in removing large particles while filtering out initial allergens so later stage HEPA filter would have a better efficiency rate. Winix HR950 also comes with Anti-microbial coating on top of the HEPA filter to inhibit bacteria such as mold, pollen from growing on to the filters. There is also the equally important CD carbon filter and PlasmaWave to eliminate any leftover smoke/ odor particles. With added AQ indicator, particles + VOC sensors, Auto mode, timer and godsend child-lock feature, Winix HR950 might perhaps be one of the best air purifier for asthma and allergies that is not overly priced.

There must be a few downsides, none so than the pricey annual filter replacement cost although it's still not costliest in the list. For a way cheaper asthma air purifier and allergen fighter alternative, we highly recommend Winix 5500-2.
  • 5-stage filtration with PlasmaWave™ Technology.
  • Permanent washable pre-filter.
  • Effective True HEPA filter with Anti-microbial coating.
  • Strong Coated Deodorization (CD) carbon filter.
  • Punchy airflow with 5 fanspeed and Auto mode/ Sleep mode.
  • Dual sensors (Particle, VOC) with air quality indicator.
  • Child lock feature that prevent 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 Winix HR1000 that offers additional WiFi support.
  • Filter replacement is expensive and have to done on a yearly basis.
  • In sleep mode the indicator light does not dim down enough to prevent a slight glare disturbance.
  • Lacks remote control the comes with some of the lower end model.
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 SPA-700A will blow your mind with its 6-stage filtration squeezed it in a frame size body. The first stage pre-filter stops large particles mainly airborne dust, hair filled with allergens from floating back out. The inflow asthma triggering allergens will now have to go through a long filtration journey consist of medium filter, HEPA filter, customized filter (any will do) and negative ion generator. Finally, any uncaptured smoke and odors will be taken care by Charcoal-Based Activated Carbon Filter. With more clean air on every breathe you take, Rabbit Air is the perfect example on how to design a beautiful air purifier for asthma and allergies that still work wonders for asthmatic person.

The downside for such as slim and aesthetically outstanding air purifier is of course the cost. Everything from the air purifier base price, filter addon and even design panel would cost you top dollar. If you are willing to part with 2-stage filtration less, we highly recommend the cheaper Rabbit Air BioGS that is also an effective asthma air purifier in tackling allergens.
  • 6-stage filtration with side and bottom 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 and allergies that we do not have the time to feature them, below are the few honorable mention that you should probably look into as well.

Previous best air purifier for asthma and allergies

  • GermGuardian AC9200WCA
  • Blueair 405
  • Oransi Max

Best Air Purifier for Asthma and Allergies Table

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