Are you looking for the best air purifier for asthma? There are a number of air purifiers on the market today that are used to clean the air of different impurities.

When you choose one, you need to have a specific use in mind. Asthma is a common respiratory issue that a lot of people around the world live with. It is a lung condition, in which people experience breathing problems. 

Breathing in impurities can make it worse. This is why an air purifier is necessary for asthmatic people. You can breathe in cleaner fresher air, by using the right air purifier with the filters you need to clean the air. In this article, we take a look at some of the best purifiers and what you need to look for to make sure that you can clean the air sufficiently.

Quick Tips

Do you need a quick guide to buying the best air purifier for people with asthma? There are a couple of key things that you will need to take into consideration.

Firstly, make sure that the air purifier has the capacity needed. This is indicated by the type of filters that are used in the air purifier. You also need to make sure that it’s room coverage matches the room size.

You also want to make sure that the air purifiers filters can capture very small particles that can cause breathing issues like triggering asthma. Check on the maximum micron size that it can filter.

This will give you an idea of how clean the air will be. Also, make sure that it has good room coverage and a great CADR rating. Find out also how efficient it is in cleaning the air and how many times a day it does this. 

Top Pick

Blueair Classic 203 Slim HEPA silent air purification system

We have done our research and found our favorite pick to be the Blueair Classic 203 Slim HEPA silent air purification system. We love it because it does a great job of capturing some of the smallest allergens and air pollutants which can be potential asthmatic triggers.

These include smoke, dust, pet dander, odors and so much more. It is perfect for small rooms such as bedrooms and living spaces. 

Our 5 Reviews of Best Air Purifier for Asthma

Blueair Classic 203 Slim HEPA silent air purification system

Blueair Classic 203 Slim HEPA silent air purification system

Looking for the perfect air purification system can be difficult, especially when you have special needs why you want to have clean air. It means that you will need to be more particular about the mechanism on the air purifier. The Blueair Classic 203 Slim HEPA silent air purification system has filters that can clean up to 99.97% of the air in a small to medium-sized room. 

Room coverage is necessary to understand. This unit, with 240 square feet is best used in a small room such as a bedroom, rather than trying to clean the air in the entire house. It simply does not have the capacity to do that. 

The filters will clean small particles that are airborne such as mold, dust, and other small and potential triggering air contaminants. This is a compact yet very efficient air purifier. Which means that you can easily move it from one room to the next. 

It uses HepaSilent technology, which will remove just about any airborne contaminant. It also has an easy to read screen and timer alert that helps you know when to replace the filters. 


  • It is easy to use
  • It is portable
  • It captures most small pollutants
  • It has a timer alert that tells you when to change the filters
  • It is aesthetically pleasing but also affordable


  • It is only for small rooms

Additional Reviews and Price

IQAir HealthPro Plus Air Purifier

IQAir HealthPro Plus Air Purifier

This is a medical-grade air purifier, that is designed with the capacity to clean the air efficiently and in large rooms. The 35-pound unit is powered by electricity and measures 6 x 15 x 28 inches. 

These are some strong hardware features that you can not help but notice. It is said to be a hundred times more effective than the ordinary HEPA filter, and it will effectively clean the air of any asthma triggers. It will also trap the smallest particles like viruses.

This unit uses a hyper HEPA technology system, which is highly effective in capturing particles as small as 0.003microns in size. The 3D ultra frame will seal the filter frame to the housing.

This triple seal system makes sure that you do not have any leakages. Room coverage on this air purifier is very impressive, as it can effectively clean the air in a room that is 1 125 square feet. Some of the bigger living spaces will be covered.

This unit has a 320-degree rotation, which means it can clean air from all angles. One of the great things about this unit is that it has a quiet operation and there is no draft as you may experience with other air purifiers. 

It has a fan that will give you up to 300 CFM and operates at an efficient low-cost rate, by using 27watts at its lowest speed. It also has filter life monitoring and color-coded lights to show when a filter needs to be changed.


  • It efficiently cleans the air 
  • It will tell you when the filters need to be changed. 
  • It has 320-degree rotation meaning that it can take in air from all corners of the room
  • It has large room coverage
  • It is affordable to run


  • It doesn’t have a smart sensor

Additional Reviews and Price

RabbitAir MinusA2 Ultra Quiet HEPA Air Purifier

RabbitAir MinusA2 Ultra Quiet HEPA Air Purifier

This beast has a six-stage purification system that you can not mistake for an ordinary air purifier. It uses advanced HEPA filtration technology. This type of filtration is one of the best and is trusted even by hospitals, to create clean air free of allergens and germs as well as odors. It traps contaminants 0.3 microns in size at 99.97% efficiency and particles less than 0.1 microns in size at higher than 99% efficiency.

The other great thing about this air purifier is that you can customize the filtration to make sure that it cleans the air according to your needs. The unique HEPA filter traps some of the smallest pollutants. 

Whereas traditional HEPA filters can let viruses through. When it comes to looks, this air purifier does not do so bad. The manufacturer prides itself on making a unit that gives you both functionality and looks. 

The six filtration stages are the pre-filter, which traps particles such as dust mites and pet dander. Then there’s the medium filter that traps contaminants like mold. The third is the BIOGS HEPA filter, the fourth is a customized filter, the fifth is an activated carbon filter whilst the sixth is the negative ions stage. The six stages, work hand in hand to clean the air.


  • It has a six-stage filtration system
  • One of the filtration stages involves a customizable filter.
  • It offers you intelligent purification, which makes it easy to operate
  • It has an intelligent purification system
  • You get smart connectivity so that you can easily use it via mobile application.
  • It is quiet
  • It has a light sensor that adjusts according to room light


  • If you lose power and the unit switches off, you will lose your settings as well
  • Scheduling is rigid, and you can not change the settings for different days.

Additional Reviews and Price

Dyson Pure Hot + Cool Link HP02 Wi-Fi Enabled Air Purifier

Dyson Pure Hot + Cool Link HP02 Wi-Fi Enabled Air Purifier

This air purifier is certified as one of the best air purifiers for asthma and allergies. It is stylish and sleek in just about every way. So you know that you will be able to place it in just about any room. One of the great things about this unit is that you can control it with your voice, by simply pairing it with an Alexa device. 

It has WiFi connectivity which is a great feature for any device you may want to use today. But this is not just for the sake of keeping up with the times, it helps you track the quality of the air easier. It has a HEPA filter, which will remove about 99.97% of contaminants as small as 0.03microns, in the air. This air purifier can work both as a heater and a fan, which is great for different weather patterns.

You can set the fan to up to 10 different speeds.  It is easy to use and also easy to clean. You will enjoy using this air purification system. It also has an auto mode and sleep mode as well. Meaning that you will not need to give it as much attention as other air purifiers will need. This is a safe air purification system to have in your home around children, as there aren’t any moving parts that could be dangerous.


  • It is easy to use
  • It has 10 fan speeds
  • It is Wi-Fi enabled
  • You can connect it in such a way that you operate it using voice prompts. 
  • It serves as both a heater and a cooler.


  • It is expensive

Additional Reviews and Price

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

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

This air purifier comes in different colors that complement each other, black and silver and it is made by Coway. It has good room coverage of 360square feet. Also, it comes with a filter indicator that lets you know when the filter needs to be changed, and it displays this on the LED. 

The four-stage filtration system includes a pre-filter, a deodorization filter, a true HEPA filter, and a vital ion, which is what will help you trap up to 99.97% of pollutants in the air, that are 0.3 microns in size.

The prefilter on the unit is washable, which makes it more affordable to maintain. You will not need to replace it. The type of particles that can be trapped by the filters in this air purifier varies greatly. They can range from pollen to dust, to allergens. Most of which would be triggers for asthmatic attacks. It operates quietly which means that you will not need to turn it off when you go to bed.

Its compact design makes it easier to place in differently themed rooms. It is perfect for dealing with asthma because it can filter the air of very small particles and even odors. It also comes with a timer that allows you to set schedules of 1, 4, 8 and12 hours. This helps you customize your air purification system operating hours.


  • It has a filter replacement indicator
  • It has three fan speeds that allow you to control air quality to a certain extent.
  • It has a timer that lets you set schedules.
  • It can clean a room up to 361 square feet
  • It is affordable


  • It can cover small to medium rooms but will not work well in larger spaces.

Additional Reviews and Price

Buyer’s Guide

Can an air purifier help to ease asthma symptoms?

Did you know that the air in our homes is about 5 times more polluted than the air outside? It sounds unrealistic, but studies show this to be true. It does vary according to your home and the activity in it, but the bottom line is that the air indoors needs cleaning, and often we ignore it. 

Asthma is a respiratory problem, the cause may not be known and there may not be a cure, but there are triggers in our homes that can bring on an attack. These are the triggers that you want to get rid of in the air.

An air purifier can help you clean the air of impurities and pollutants that can make the air harder to breathe in if you have asthma. Whilst the air purifier may not cure asthma, it can help you avoid asthma attacks. 

Using the right air purifier that has the ability to filter the air well, if it has the right features. Various purifiers can help you get rid of asthma triggers in the air, especially those with a HEPA filter at the very least. Some manufacturers have upped the game to improve the ordinary HEPA filter.

Allergens and pollutants in the air can be controlled to a certain extent, by using means such as keeping a clean space and avoiding dust. Some simple daily cleaning chores can make a huge difference in your home. However, an air purifier will help you remove impurities.

How do I choose the right filter for an air purifier?

An air purifier is only as good as the capacity of its filter. So it is important that you know what type of filter you will need to get and when. When you initially buy your air purifier, you need to know how to choose the right air purifier and this is greatly indicated by the filter that it comes with.

It is important that you look for an air purifier that has a HEPA filter. These are designed to clean the air of some of the smallest particles that can be potential triggers for asthma. Make sure that the filter has the capacity to clean the air effectively.

You can also check on the number of filters that a purifier has. Make sure that they have specialized uses, so that you have one to filter bigger airborne particles, another for gasses and odors and another for small particles, usually invisible to the naked eye. Find out what type of filters are in the purifier. This will help you know what to expect when the air is passed through them.

Make sure that you look for an air purifier that does not emit ozone because these can be bad for your lungs and in turn for any respiratory issues such as asthma.  The filter that you get can easily clean the air, or not make a difference even the slightest. Always

Be aware that while air purifiers can reduce mold particles and odors, they can’t solve a mold problem. If you have mold in your house, take steps to clean it directly. You may need someone else to do this so that it doesn’t lead to an asthma attack. 

Also, check and compare CADR ratings on the available filters. This tells you how well the filter will do its job. CADR stands for a clean air delivery rate. You will also want to check on the type of particles as well as the size of the particles that can be filtered by the brand that you choose.

What should I look for in a good air purifier?

Whilst there are many features that you can look for in an air purifier, there are a couple of key features that you want to make sure are there. One of those is the quality of the filters. But we’ve talked about that already. Then you will want to make sure that the air purifier has an easy way of letting you know that the filters need to be changed. A dirty filter defeats the purpose of cleaning the air.

Another feature that you will need to check for is the number of air changes that you get with the air purifier that you choose. This means the number of times that clean air is circulated in the room. This will give you an idea of how often you will be getting fresh air in the room. 

Room coverage is closely linked to the number of air changes. It is important that you know the maximum size of the room that the air purifier can handle. This is so you do not overwhelm the unit and so that you get the maximum possible effect in your space.

You will probably want to make sure that you always have clean air. For this to happen, it means that you will need to have the unit running possibly through the night. But this can be very disturbing if the unit is noisy. The manufacturer may tell you that it has a silent operation, but for this feature, it is usually best to get the opinions of other users.

If you are looking for an air purifier, it is important to know what you are willing to spend. If money is tight, then you can get the basic purification system that does not have all the trimmings. Sometimes bonus features are not all they are cut out to be, and sometimes, they are necessary. Decipher all that you need in a purifying system to make sure that you do not skip out on anything necessary.

However when it comes to price, try not to penny-pinch too much, or you may just miss out on all that you need in a good purification system.

Final Thoughts

An air purifier may not be the cure that you need, but it will remove triggers from your home and this means that you will not be as susceptible to attacks as when you are in a filthy place. It can make a world of difference for both of you. Very small particles are known to cause respiratory problems, so you want to make sure that the air purifier can deal with them efficiently.

At the end of the day, what you want to do is to reduce the number of triggers in the air. A good air purifier will do this for you. We prefer the units that can filter very small particles and odors alike. These are usually amongst the top asthma triggers. You want the air purifier to have the ability to filter out dust as well.