7 Best Air Purifiers for Asthma 2024

Air purifier in front of girl with trouble breathing

Last Updated on June 1, 2024 by Kravelv

Asthma is a chronic condition that affects millions of people worldwide. For those living with asthma, maintaining indoor air quality is crucial for managing symptoms and improving overall health. One effective way to achieve cleaner air is by using an air purifier. In this guide, we will explore the best air purifiers for asthma, focusing on features, technologies, and tips for selecting the right model for your needs.

According to the CDC or the Centers for Disease Control and Prevention, more than 25 million people in the US have asthma. It affects around 19.2 million adults; 7.7% of adults have it, and there are 8.4% of asthmatic children. This is part of the reason why more people are looking for the best air purifier for asthma.

Best Air Purifiers for Asthma

The following are our recommendations for the best air purifiers that will benefit asthmatic folks:

ProductBest FeaturesCADR Coverage AreaPrice
Blueair Blue Pure 211+HEPA Silent technology, High capacity350 CFMUp to 540 sq ftCheck on Amazon
LEVOIT Core 300True HEPA filter, Ultra-quiet operation140 CFMUp to 219 sq ftCheck on Amazon
Coway AP-1512HH MightyTrue HEPA filter, Sleek design240 CFMUp to 361 sq ftCheck on Amazon
PuroAir 400 HEPA 14 Air PurifierMedical-grade HEPA 14 filter, High-efficiency filtration400 CFMUp to 1,600 sq ftCheck on Amazon
AROEVE MK04True HEPA filter, Affordable and comprehensive filtration300 CFMUp to 1,000 sq ftCheck on Amazon
Molekule Air PurifierPECO technology, Innovative pollutant destructionNot specifiedUp to 600 sq ftCheck on Amazon
Dyson Pure Cool TP07HEPA filter, Smart features with app connectivityNot specifiedUp to 800 sq ftCheck on Amazon

Blueair Blue Pure 211+: Best Overall Air Purifier for Ashtma

The Blueair Blue Pure 211+ stands out for its balanced combination of high efficiency, advanced filtration technology, and user-friendly features, making it the best overall choice for asthma sufferers.

Blueair Blue Pure 211

Key Features: The Blue Pure 211+ utilizes advanced HEPA Silent technology, combining mechanical and electrostatic filtration to achieve high particle removal efficiency. It has a high CADR rating of 350 CFM and can cover up to 540 square feet. The purifier features a one-button control and three-speed settings, making it simple to operate. Its large capacity and efficient filtration make it ideal for larger rooms.

User Reviews: Users love the Blue Pure 211+ for its powerful air cleaning capabilities and ease of use. Many note significant improvements in air quality and a reduction in allergy and asthma symptoms. The unit’s quiet operation and sleek design are also frequently mentioned as positive attributes, making it a top choice for those needing effective air purification in large spaces.

Read our Blueair Blue Pure 211+ Review to learn more about this product.

LEVOIT Core 300: Best for Small Spaces

Key Features: The LEVOIT Core 300 features a True HEPA filter that captures 99.97% of particles as small as 0.3 microns, including dust, pollen, and pet dander. It also includes an activated carbon filter to remove odors and VOCs. The purifier operates at an ultra-quiet 24dB, making it ideal for bedrooms and small spaces. With a coverage area of up to 219 square feet and a CADR rating of 140 CFM, it is a compact and efficient solution for improving air quality.

LEVOIT Core 300

User Reviews: Users appreciate the LEVOIT Core 300 for its quiet operation and effective air cleaning capabilities. Many highlight the noticeable improvement in air quality and reduction in allergy symptoms. The compact design and ease of use are also frequently praised, making it a popular choice for small to medium-sized rooms.

Read our LEVOIT Core 300 review to learn more about this product.

Coway AP-1512HH Mighty: Best for Medium Rooms

Key Features: The Coway AP-1512HH Mighty includes a True HEPA filter that captures fine particles, along with an activated carbon filter to reduce odors and VOCs. It features a CADR rating of 240 CFM and covers up to 361 square feet. The sleek design and multiple fan speeds, including an eco-mode that adjusts based on air quality, make it a versatile and stylish option for medium-sized rooms.

Coway AP-1512HH

User Reviews: Users consistently rate the Coway Mighty highly for its powerful performance and stylish design. Many users report significant reductions in dust and allergens, leading to improved breathing and fewer asthma symptoms. The eco-mode and intuitive controls are also appreciated, contributing to its overall positive reception.

Read our Coway AP-1512HH Review to learn more about this product.

PuroAir 400 HEPA 14: Best for High-Efficiency Filtration

Key Features: The PuroAir 400 features a medical-grade HEPA 14 filter, which provides high-efficiency filtration, capturing 99.99% of particles. It boasts a CADR rating of 400 CFM and covers up to 1,600 square feet, making it suitable for very large spaces. The purifier also includes an activated carbon filter to remove odors and gases, offering comprehensive air cleaning.

PuroAir 400 HEPA 14 Air Purifier

User Reviews: Users are impressed with the PuroAir 400’s powerful filtration and large coverage area. Many note significant improvements in air quality and a reduction in allergy and asthma symptoms. The high CADR rating and efficient performance are frequently praised, making it an excellent choice for extensive spaces.

Read our PuroAir Hepa 14 Air Purifier Review to learn more about this product.

AROEVE MK04: Best for Affordability and Comprehensive Filtration

Key Features: The AROEVE MK04 features a True HEPA filter that captures 99.97% of particles, including dust, pollen, and smoke. It also includes an activated carbon filter for odor removal. With a CADR rating of 300 CFM and coverage up to 1,000 square feet, it provides affordable and comprehensive filtration for larger rooms. The unit is designed for easy use and maintenance.


User Reviews: Users appreciate the AROEVE MK04 for its effective air cleaning and affordability. Many report noticeable improvements in air quality and reduced allergy symptoms. The large coverage area and straightforward operation are also frequently mentioned as positive aspects, making it a budget-friendly option without compromising on performance.

Read our AROEVE MK04 Air Purifier Review to learn more about this product.

Molekule Air Purifier: Best for Innovative Air Purification Technology

Key Features: The Molekule Air Purifier uses innovative PECO technology to destroy pollutants at the molecular level, providing a unique approach to air purification. It is designed to cover up to 600 square feet and includes smart features for ease of use. Although its CADR rating is not specified, it is effective in removing a wide range of pollutants, including viruses, bacteria, and mold.

Molekule Air Purifier

User Reviews: Users are impressed with the Molekule Air Purifier’s advanced technology and effectiveness in improving air quality. Many highlight the reduction in allergy and asthma symptoms, as well as the sleek design and quiet operation. The innovative PECO technology and smart features are also praised, making it a favorite among those looking for cutting-edge air purification solutions.

Read our Molekule Air Purifier Review to learn more about this product.

Dyson Pure Cool TP07: Best for Smart Features

Key Features: The Dyson Pure Cool TP07 combines air purification with smart features and app connectivity. It includes a HEPA filter that captures 99.97% of allergens and pollutants, as well as an integrated fan to provide cooling. Suitable for spaces up to 800 square feet, it offers multiple speed settings and can be controlled remotely via the Dyson app. Although its CADR rating is not specified, independent tests indicate high performance.

Dyson Pure Cool TP07

User Reviews: Users appreciate the Dyson Pure Cool TP07 for its dual functionality as both an air purifier and a cooling fan. The smart features and app connectivity are highlighted for their convenience and ease of use. Many users report improved air quality and comfort, especially in larger spaces, making it a popular choice for tech-savvy individuals.

Read our Dyson Pure Cool TP07 Review to learn more about this product.

Why Use an Air Purifier for Asthma?

Air purifiers can significantly reduce airborne contaminants such as dust, pollen, pet dander, mold spores, and volatile organic compounds (VOCs). These pollutants can trigger asthma symptoms, making it harder to breathe and potentially leading to severe asthma attacks. By filtering out these irritants, air purifiers help create a healthier indoor environment.

However, note that not all air purifiers are the same. Some models are better than others in removing certain pollutants, like pollen, molds, smoke, pet dander, and dust, that trigger asthma. Therefore, it becomes imperative to get the best air purifier for asthma that suits your home’s needs.

Key Features to Look for in an Air Purifier

When selecting an air purifier for asthma, consider the following key features:

  1. HEPA Filters: High-Efficiency Particulate Air (HEPA) filters are essential for capturing tiny particles, including dust, pollen, and pet dander, which are common asthma triggers. Look for True HEPA filters, which can trap particles as small as 0.3 microns with 99.97% efficiency.
  2. Activated Carbon Filters: These filters are excellent at absorbing gases, odors, and VOCs, which can also exacerbate asthma symptoms. They complement HEPA filters by targeting pollutants that HEPA cannot capture.
  3. CADR Rating: The Clean Air Delivery Rate (CADR) indicates how quickly an air purifier can clean the air in a room. Higher CADR ratings mean faster and more efficient air purification. Aim for a CADR rating that matches the size of your room.
  4. Coverage Area: Ensure the air purifier is suitable for the size of the room where it will be used. Manufacturers typically provide coverage area specifications, so choose a model that can handle your room’s square footage.
  5. Noise Level: Since air purifiers often run continuously, a model with a low noise level is preferable, especially for bedrooms or living spaces where quiet is important.
  6. Maintenance and Filter Replacement: Regular maintenance is essential for optimal performance. Check how often filters need to be replaced and factor in the cost of replacement filters.

Tips for Using Air Purifiers Effectively

To maximize the benefits of your air purifier, follow these tips:

  • Proper Placement: Place the air purifier in a central location within the room, away from walls and obstructions, to ensure optimal airflow.
  • Continuous Operation: Run the air purifier continuously to maintain clean air, especially during high pollen seasons or when using chemical cleaners.
  • Regular Maintenance: Adhere to the manufacturer’s maintenance schedule, including filter replacements, to ensure the air purifier operates efficiently.
  • Combine with Other Strategies: Use air purifiers alongside other asthma management strategies, such as keeping windows closed during high pollen days, using hypoallergenic bedding, and maintaining a clean home environment.


Investing in a high-quality air purifier can make a significant difference for individuals with asthma by reducing exposure to airborne irritants and allergens. By considering the features outlined in this guide and choosing a reputable model, you can create a healthier and more comfortable indoor environment. Whether you opt for a high-capacity unit like the Blueair Blue Pure 211+ or a compact model like the LEVOIT Core 300, you’ll be taking an important step towards better asthma management and improved air quality.

Kravelv is a full time digital marketer and part time furniture and cabinet maker. During his free time he would like to create something out of recycled woods, this varies from toys, furnitures plant boxes etc. Follow him on Twitter | Pinterest | Facebook