Tech Know-How: What is the Best Air Purifier for Asthma?

Asthma is the most common and in some cases most severe breathing problem we humans face today. For those that suffer from this debilitating allergic reaction, constantly having to use an inhaler and take different medications can be depressing – but sadly it’s also vital for survival. As many of us know, not having an emergency inhaler close at hand can be life threatening.

Whilst some medications are preventative – most are only to be used once an attack in underway. Wouldn’t it be nice to find a way to effectively reduce the occurrences of attacks in the first place?

Many people don’t know that there is a very good preventative solution to asthma that does not require any form of medication. The solution is to obtain and use an air purifier specifically designed to combat asthma. You can find some good reviews of them on freshairguide.

In this article, we will show you why purifiers work so well, and which are the best air purifiers to get the relief you crave. According to, there are about 300 million people in the world suffering from asthma and on an average 250000 die from it each year.

To make matters worse, according to air quality inside our homes is 2-5x worse than the air outside. These statistics are as scary as they sound, but there is a very formidable solution that many asthma sufferers are not utilizing right now.

There is no known cause for what causes asthma and unfortunately neither is there an actual cure for it either. But to some extent we do know why it is getting worse inside our homes. The major problem is that our indoor air quality is declining year by year. Many years before, while building houses and apartments there wasn’t as much emphasis on making the rooms smaller and smaller. We had more freedom of movement and so did our air.

But things changed and created new problems, especially for those that suffer from allergies and asthma.

Now there is a lot of emphasis on making our houses much more energy efficient so that it uses less air conditioning and less heating as much as possible and also maintain an adequate room temperature. This is done by making every corner if the home tightly sealed and packed with insulation.

Secondly, many people nowadays don’t like to keep their windows open any more. As the number of people suffering from allergies are increasing this might seem like a perfect solution to protect themselves from the allergens in the outside air, but in reality – it doesn’t really help.

So why does the tight seal create more problems for people suffering from asthma and allergies?

The airtight seal of your home exacerbates problems because there are already harmful contaminants in the air inside your home right now. And they simply don’t have a way to get out freely. Once they enter your home from the outside through your clothes or by floating in on the air when your door is open, they’re stuck and don’t have a way out. This results in our homes being infested with the toxins and contaminants that trigger asthma attacks and they continue to cycle throughout the house unimpeded.

Things That You Should Look for in an Asthma Air Purifier

Now that we have understood how serious the problem of air quality inside our homes is and how outside contaminants are making you suffer from Asthma, the next question is how an air purifier can help in improving the indoor air quality?

The fact that air purifiers are good for asthma is that it purifies the air by filtering out even the smallest particles that can cause asthma or make the symptoms even worse. By breathing in the clean and fresh air inside your home you’ll notice that your health is getting better almost straight away and that the number of attacks diminishes over time.

You do need a specific type of air purifier which has a genuine HEPA filter inside, as no other filter is capable of cleaning the miniscule particles that cause asthma.

There are two major types of air purifiers available in the market
‌Ionic (ozone) generating air purifiers
‌HEPA air purifiers

For a person suffering from Asthma, ionic or ozone generating air purifier is not the best choice. These type of air purifiers work by releasing the ions into the air which neutralise air borne particles but these ions have been suspected of making asthma symptoms even worse.

What you should look for instead is an air purifier which uses a HEPA filter. This device uses extremely dense paper to trap even the most tiny particles (down to 0.3 microns in size). Once these particles are filtered out by the air purifier they cannot recirculate inside the room, this is how this type of air purifier purifies the air and provide cleanest and freshest air possible.

HEPA air filters come in variety of sizes and capacities and so you need to make sure the one you buy is capable of cleaning all of the air in the size of room you have in a reasonable amount of time, otherwise it will be constantly fighting an uphill battle. If the device you purchase has a maximum capacity to clean only 100 square feet but you live in a room which is of 400 square feet, it simply won’t be able to clean the air adequately, rendering it useless.

Of all the HEPA based air purifiers we have reviewed, the best two at keeping asthma away are as follows:

1). IQ HealthPro Plus


  • ‌able to remove up to 99.5 airborne particles
  • ‌Even 0.003 Microns particles can also be filtered
  • ‌perfect for rooms which are medium and large in size

Filter: ‌It uses hyperHEPA filter which ensures an ultra-effective contaminant removal.


  • consumes less power
  • ‌rubber suspension pads and double-walled housing ensures low operational noise
  • Comes with 10 year warranty


  • ‌It’s a big unit and takes up a lot of space
  • ‌color choice is limited to only one; an off white color
  • Initials costs are high – but filter replacement is reasonable

2). Alen BreatheSmart Air Purifier


  • ‌cleans up to 99% of particles
  • ‌can remove particles as small as 0.3 micron
  • ‌covers the area of up to 1100 sq. ft.

Filter: Uses 4 HEPA filters which can be customized according to your needs


  • ‌whispermax technology which ensures less operational noise
  • ‌energy star certified, uses only 105 W at the highest speed setting


  • Like the IQ air healthpro plus, it’s not the cheapest air purifier on the market, but as they say – you get what you pay for
  • Comes with lifetime warranty

Also Read: Quick Overview: Advances in Microscopic Imaging Technology

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