Are you one of the millions of people worldwide suffering from allergies or asthma? If so, then you know how crucial it is to breathe clean air. The World Health Organization (WHO) estimates that 235 million people suffer from asthma globally. One of the most effective ways to improve indoor air quality and alleviate these health issues is by using an air purifier. But with a plethora of options available, how do you know which one to choose? In this comprehensive guide, we’ll delve into some of the best air purifiers for allergies and asthma, updated for 2023.

Why Air Purifiers are Essential for Allergies and Asthma

Air purifiers are designed to remove harmful particles from the air, such as pollen, dust mites, pet dander, and mold spores. These particles can trigger allergies and asthma symptoms in people who are sensitive to them. According to a study published in the Journal of Allergy and Clinical Immunology, using an air purifier can significantly reduce the concentration of particulate matter in homes, leading to improved respiratory health.

By using an air purifier, you can reduce your exposure to these allergens and breathe cleaner indoor air. This can help alleviate allergy and asthma symptoms like sneezing, coughing, wheezing, and shortness of breath.

The Best Air Purifiers for Allergies and Asthma

Factors to Consider When Choosing an Air Purifier

When choosing an air purifier for allergies or asthma relief, there are several factors that should be considered:

Filter Type

Look for a HEPA (High-Efficiency Particulate Air) filter. HEPA filters capture 99.97% of airborne particles that pass through the filter. According to the U.S. Department of Energy, to qualify as HEPA by US government standards, an air filter must remove 99.97% of particles that have a size of 0.3 µm.

Coverage Area

Make sure the coverage area matches your room size. A common mistake is to buy an air purifier that is too small for the room. This can result in the air purifier not effectively cleaning the air, leading to continued allergy or asthma symptoms.

CADR Rating

Look for a Clean Air Delivery Rate (CADR) rating equal or higher than your room size measurements. The CADR rating, established by the Association of Home Appliance Manufacturers (AHAM), indicates the volume of filtered air delivered by an air purifier. The higher the CADR number, the faster and more efficient the air purifier is.

Noise Level

Check noise levels on both low/high settings when selecting an operation mode suitable in different circumstances. Some air purifiers can be quite loud, which can be disruptive, especially if used in a bedroom or office.

Our Top Picks: The Best Air Purifiers for Allergies and Asthma

Based on extensive research, customer reviews, and expert opinions, here are our top picks for the best air purifiers for allergies and asthma in 2023:

1. Coway AP-1512HH Mighty

The Coway AP-1512HH Mighty is a top-rated air purifier that offers superior performance in removing allergens and other harmful particles from the air. It Features a four-stage filtration system, including a pre-filter, carbon filter, HEPA filter, and vital ionizer.

The device comes with an advanced odor control feature to eliminate any unpleasant smells around your room or apartment. Not only does it remove common allergens like pollen and dust mites but also able to fight odors of pets.

With its sleek design, this air purifier can blend well with any home decor while effectively covering up to 361 square feet of space allowing versatile usage either at bedroom or living area. The CADR rating this device has achieved assures the purification performance in line with United States Environmental Protection Agency (EPA) recommendation which makes it one of the best options available on the market today.

2. Winix HR900 Ultimate Pet True HEPA Air Purifier

If you have pets at home along with allergies/asthma symptoms then Winix HR900 could be an excellent option when struggling against pet hair/dust/litter allergies together along cigarette or wildfire smoke when needed help from extra filters added instead just carbon ones.

This is another top-rated air purifier designed specifically for households having furry friends:

It has five-stage filtration system which includes pre-filter, coated deodorization (CD) carbon filter, anti-microbial True HEPA Filter combines plasma wave technology alongside Smart-sensors(QS/AQ). They track pollution levels automatically adjusting fan speed keeping indoor air always safe even if outdoor conditions particularly worse during allergy season,

The coverage capacity is lower than Coway’s specification reaching out maximum efficiency operation scenario for mid-size rooms around.. This compact unit still covers majority of daily household usage.

This purifier also has a unique feature, plasma wave technology, which helps eliminate bacteria and viruses in the air while keeping compact design of machine nearly silence.

3. Honeywell HPA300 True HEPA Air Purifier

If you need maximum area coverage within your budget then Honeywell is an excellent option for a large room purifier. This device can effectively clean up to 465 square feet of space.

It Features three-stage filtration system with activated carbon pre-filter and true HEPA filter that captures pet dander, pollen, mold spores, tobacco smoke and allergens from big sized rooms with high efficiency. The CADR rating of this machine ensures it will quickly remove allergens providing cleaner indoor environment almost instantly. The noise level maybe bit high on higher setting though low speed is gentle enough for sleeping environments if necessary what makes it ideal not only people having asthma or allergy problems but also seniors wishing automatic operation as much possible without worry about overwhelming mechanical roar when running device at night.

Final Thoughts

If you are looking for an effective way to improve indoor air quality and alleviate allergies or asthma symptoms consider investing in an air purifier that meets your specific needs.

When selecting product mentioned above users should recognize important aspect such as adequate room size coverage alongside filter type used together device’s capability managing pollutants introduced by pets or other sources including cigarette smoke improves its usability significantly.

Remember to keep factors like filter type, coverage area, CADR ratings etc., in mind when choosing the best air purifiers for allergies and asthma relief as per your particular requirements.

With so many options available on the market today there really isn’t any reason why anyone should continue suffering from poor indoor air quality affecting their health anymore!


What is the best type of filter for an air purifier to help with allergies and asthma?

HEPA filters are considered the gold standard when it comes to trapping allergens and pollutants that can trigger respiratory issues. These specialized filters are capable of capturing 99.97% of particles as small as 0.3 microns, including pollen, dust mites, pet dander, and mold spores, which are some of the most common triggers for allergies and asthma.

Can air purifiers remove pet hair from my home?

While air purifiers can help reduce airborne irritants such as pet dander or pollen that cause allergies and asthma symptoms by filtering out tiny airborne particles in your home’s air supply- they may not be effective at capturing larger debris like hair or fur.

How often do I need to replace the filter on my allergy/asthma air purifier?

The frequency with which you should replace your allergy/asthma air purifier’s filter depends on a variety of factors such as usage level, model specifications, size/type of household etc., but generally speaking HEPA-type filters should be changed every six months at minimum for optimal performance. However it is always advisable to refer specific instructions provided by manufactures for your particular model.


Hey there, I'm Kevin, editor of Xievo. I'm passionate about air purifiers and providing accurate information to help readers make informed decisions. In my free time, I love hiking and experimenting with air purifiers in my own home. Thanks for visiting Xievo!