Best Air Purifier For Allergies And Asthma

Before I share my views on the Best Air Purifier for Allergies and Asthma available in the market, I would like to dive a bit deep into the topic and discuss more on Air Purifier. There are lots of purifier being marketed but most of them cannot be classified as the Best Air Purifier For Allergies And Asthma Patients. One must know the exact requirement before buying the Air purifier for Home. I hope this post will help you in your buying decision.

What is an Air Purifier and How does it work?

An air purifier is an equipment used to remove contamination like Dust, Dust millets or Mold Spores from the air in a room. These types of equipment are promoted in the market as being beneficial for the patients of Allergies and Asthma. Air purifiers are also used to remove the bad odor in the rooms. They are also recommended for eliminating passive tobacco smoke. Air purifier for your home may be very compact and “small in size” depending upon the size of the room whereas commercial air purifier may either be small stand-alone units or larger units affixed to AHU (Air handler units)

Are the Air Purifier Really Effective?


Frankly speaking, no effective research has been conducted in this matter and as no scientific data is available. But Doctors and medical experts both agree that these machines do provide clean filtered air which is what people are looking for.

But the experts have a different conflicting opinion on the Ionic Air purifiers using Ozone as purifying Agent. In my opinion, exposure to a higher concentration of Ozone for a longer period may have an impact on health and can cause throat irritation and chest infection.

Even EPA, United States Environmental Protection Agency do not recommend Ozone generators.

Therefore I would advise using non-Ionic Air purifiers mainly with HEPA Filters.

How to select the right Capacity Air Purifier?

The right Air purifier for your room would be one which can completely clean the air in your room.

You would like to have a very high-efficiency filter which lasts without a performance dip. But then you also need to replace the air in the room.

Clean Air Delivery Rate or CADR rating is an industry-standard developed by the Association of Home Appliances Manufacturers (AHAM) to measure the amount of clean air flowing out of the air purifier. AHAM is the leading agency in setting up the room Air purifier standards.

To select the right Air purifier, you must also know the square cubic meter volume of your room. In most of the situation, you want to change air minimum 2 to 5 times. That means you would like to change the air in the room every 12 minutes to 30 minutes.

The following image can help you select the best Air purifier as per your requirement

Square Foot Coverage of your Room Based on Clean Air Delivery Rate
credit: orans

Type Of Air Purifiers

You may find a variety of Air Purifiers available in the market. The most prominent of the options are:

  • Activated Carbon Air Filters based Air Purifiers.
  • UV Air Purifiers.
  • Ionic Air Purifiers.

Which Filter is best for my Allergies?

HEPA stands for high-efficiency particulate Arrestance. Any air filter which remover at least 99.97 percent of particles larger than .3 microns are classified as HEPA.

You can choose any of the following HEPA Air purifier based on your Requirement

[easyazon_link identifier=”B00895ICIK” locale=”IN” tag=”skd04-20″]True HEPA/UV-C Air Purifiers :[/easyazon_link]

True HEPA/UV-C air purifiers are the best air purifiers in the market helpful in highly allergen regions and are people who are very sensitive to allergic reactions. However these are expensive Air purifiers and if money is not the constraint, you may give preference to these Air Purifiers. These Air purifiers are the combination of HEPA filters and UV technology

[easyazon_link identifier=”B07KMSQJQY” locale=”IN” tag=”skd04-20″]True HEPA Air Purifiers:[/easyazon_link]

True Hepa Air Purifiers are without UV protection and use replaceable HEPA-rated filters to remove 99.97 percent of the airborne particles. True HEPA air purifier is the minimum standard recommended for Allergic patients. They are cheaper than the True HEPA/UV-C air purifiers.

[easyazon_link identifier=”B0753HZPVS” locale=”IN” tag=”skd04-20″]HEPA-Type Air Purifiers:[/easyazon_link]

True HEPA air purifiers can be employed if Dust mites and pollen aren’t major considerations. HEPA type air purifiers are much economical to buy but can only arrest 99 % of small airborne particles like smoke or dust particles. But airborne particles like dust millets and Poolen which are responsible for causing allergies may not be removed from the air in your room.

Permanent HEPA-Type Air Purifiers

These are similar to HEPA-Type air purifiers with the only difference that the filters are not replaceable. These reusable filters require more attention and repeated cleaning to be effective.

Philips AeraSense AC2887/20 56-Watt Air Purifier For Living and Bed Room 

[easyazon_image align=”center” height=”500″ identifier=”B01KCSGBU2″ locale=”IN” src=”” tag=”skd04-20″ width=”500″]

The Philips Air Purifier comes with  3 automatic purification settings:

  1. General mode.
  2. Extra-sensitive Allergen mode.
  3. Extra-powerful bacteria and virus mode.

Based on your purification requirement, You can choose any preferred mode. This Air purifier delivers up to 344 m3/hr CADR and is able to remove small particles up to 20 nm. and effectively reduce  Odor and harmful gases such as formaldehyde.  The HEPA  filter can successfully remove bacteria up to 99.9 %. AeraSense is a sensor that can identify the fine particles even smaller than PM2.5. This is one of the best air purifiers in its class for allergic patients and is suitable for a coverage area up to 441 square feet.

Sharp Air Purifier Fu-A80E-W with Hepa Filter & Active Plasma Cluster For Upto 600 Sqft

[easyazon_image align=”center” height=”375″ identifier=”B00RCI932E” locale=”IN” src=”” tag=”skd04-20″ width=”500″]

Sharp Fu-A80E AirPurifier Combines both ACTIVE & PASSIVE Purification and is suitable for an area up to 600 Square feet. This purifier comes with an Ion Generator, HEPA Filter and Active Carbon Filter. Sharp Fu-A80 E offers a CADR of 480 m3/hr. This Air purifier is equipped with Dust Sensors for Monitoring Quality of Air and Auto Restart Function. This is best available Air purifier for Allergic and Asthma Patients.

Arun Sabharwal


  1. This is exactly the information I am looking for, thanks. I suffer from seasonal allergies every year as long as I can remember. The air purifier I currently have doesn’t do the best job anymore. Now I know what to look for!

    • I hope that my post has been able to help you find suitable air purifier for you. Selecting right purifier is very important and there are a number of factors defining the choice. As I have already stated selection must be based upon the room size and how many times you want to replace the air. Moreover selecting right kind of filter based on the air quality and particulate is most important.

  2. Thanks for the review, I’m currently looking for an air purifier for my room as my asthma suddenly flared up again. Thought of looking for a reliable air purifier – my house just got renovated and the dust is killing me.

    I’ll read up more on HEPA purifiers after this.
    Since you are recommending the one from Philips, do you know where I can buy it online?


    • Thanks, Wina for stopping by my post and leaving a comment. Air purifiers are not luxury nowadays but have become a necessity. It is very important for Asthma patients to get fresh air. Air purifies help regulating the air. I advise you to forward to HEPA UV purifier. HEPA is a standard and any purifies satisfying the condition of removing 99.7 % particles larger than .3 microns are HEPA purifiers. You can check Amazon for buying Philips Air purifier . Philips air purifier comes with 3 Automatic settings. First is general and second and third are best suited for asthma and allergic patients.

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