In the wake of the ongoing COVID-19 pandemic, the quality of air in our homes and workplaces has taken center stage. As we find ourselves spending more time indoors, it’s crucial to ensure that the air we breathe is free from harmful pollutants and viruses. The most effective way to achieve this? Investing in a top-notch air purifier.

Best Air Purifiers for COVID: Keep Your Home Safe and Healthy

According to a study by the US Environmental Protection Agency (EPA), indoor air can be 2 to 5 times more polluted than outdoor air. This fact, coupled with the airborne nature of the COVID-19 virus, underscores the importance of air purifiers in maintaining a healthy indoor environment.

The Role of Air Purifiers in Combating COVID-19

Air purifiers serve a critical function in reducing airborne particles, including viruses like COVID-19. These devices operate by filtering out pollutants such as dust, mold spores, pollen, pet dander, and other allergens from the air we breathe. They can also capture larger particles such as bacteria or viruses with HEPA filters.

A study published in the journal Nature found that air purifiers can reduce the concentration of airborne viruses by up to 90%. This is particularly important in the context of COVID-19, as the virus is primarily spread through respiratory droplets that can linger in the air.

Choosing the Right Air Purifier: Key Considerations

When it comes to selecting an effective air purifier, there are several factors to consider:

  • Room volume being filtered: Check what room sizes each device is rated for. For instance, a purifier rated for a small room of 150 square feet won’t be effective in a larger room of 500 square feet.
  • Filter replacement cost: HEPA (High-Efficiency Particulate Arresting) filters require periodic replacements (every 6 months). Some units have added electrostatic ionizers which need regular cleaning.
  • Noise level: Some air purifiers can be quite noisy, especially on higher settings. Look for models with a noise level of less than 50 decibels for a quiet operation.
  • Useful Features: Timer, remote control, air quality sensors. Some advanced models even offer smart Features like app control and air quality alerts.

Top Air Purifiers for COVID-19: A Comparative Analysis

Based on these criteria and extensive testing, here are some of the best air purifiers for COVID-19:

Dyson Pure Hot+Cool HP04 Air Purifier

Dyson Pure Hot+Cool HP04 Air Purifier
Dyson Pure Hot+Cool HP04 Air Purifier

Brand: Dyson
Model: Pure Hot+Cool™ HP04
Price: $549.99
Financing: Starting at 0% APR or $50/mo with Affirm
Warranty: 2-year warranty (includes parts and labor)
Shipping: Free (exclusions apply)
Return Policy: 30-day money-back guarantee

Features and Benefits

Multi-Functional Purification and Heating

The Dyson Pure Hot+Cool™ HP04 goes beyond the standard by offering both air purification and heating capabilities. It automatically senses pollution levels, captures ultrafine pollutants, and projects purified and heated air using its Air Multiplier™ technology. This makes it the only purifying heater designed and tested to perform these functions simultaneously.

Real-Time Air Quality Monitoring

The device comes with sensors that automatically detect airborne particles and gases. It then diagnoses and reports them in real time through the Dyson Link app.

Efficient Filtration

The sealed HEPA filters capture 99.97% of fine particles such as allergens and pollutants, ensuring a healthy indoor environment.

Air Multiplier™ Technology

The device uses Air Multiplier™ technology and offers 350˚ oscillation to project air around the entire room, providing both heating and cooling functions.

User-Friendly Controls

The machine can be controlled using a compatible voice service, and it comes with a remote control that is curved and magnetized to store neatly on top of the machine.

Additional Features
  • Diffused Mode: Purifies without cooling you.
  • Night-time Mode: Operates quietly with a dimmed display for undisturbed sleep.
  • Oscillation: Adjustable angle from 45˚ to 350˚.
  • Parent Tested Parent Approved: Awarded the PTPA seal of approval.


Weight12.36 lb
Cord Length6 ft
Amp Width8.1 in
Airflow at Max Setting82 gallon
Oscillation/Angle350 degrees
Base Diameter with Plate9.67 in
Number of Speed Settings10
Voltage120 Voltage
Amp Depth5.1 in
HEPA FilterGlass HEPA Media
Sound Level62 Decibel

Pros and Cons


  • Multi-functional (heating and purifying)
  • Real-time air quality monitoring
  • Efficient filtration
  • User-friendly controls


  • High price point
  • Currently out of stock

The Dyson Pure Hot+Cool™ HP04 offers a comprehensive solution for air purification and heating. While it comes at a higher price point, its multi-functionality and advanced Features make it a worthwhile investment for those looking to improve their indoor air quality.

Honeywell HPA300 True HEPA Air Purifier

Honeywell HPA300 True HEPA Air Purifier
Honeywell HPA300 True HEPA Air Purifier

Brand: Honeywell
Model: HPA300 True HEPA Allergen Plus Series
Color: Black
Price: $269.95 (Originally $429.95, 37% Off)
Warranty: 5-Year Limited Warranty
Room Size: Large Room (465 sq. ft.)
Product Dimensions: 20.8 x 10.83 x 22.38 in.
Product Weight: 17 lbs.

Key Features

High-Efficiency Filtration

The Honeywell HPA300 is engineered to capture up to 99.97% of airborne allergens and particles like dust, pollen, pet dander, and smoke. It uses a True HEPA filter and an activated carbon pre-filter to not only capture particles but also reduce odors and VOCs.

Quick Air Circulation

Independently tested and AHAM Verifide, this air purifier circulates and filters room air up to 4.8 times per hour in a 465 sq. ft room, making it an excellent choice for large rooms.

User-Friendly Interface

The device comes with easy-to-use touch controls and offers three cleaning levels (high/medium/low) with a Turbo Setting. It also Features a filter change indicator and an auto-off timer option at 2, 4, or 8 hours.

Silent Operation

Designed for a quiet air purifying experience, the HPA300 allows you to breathe clean air without the noise disturbance.


The Honeywell HPA300 has earned the ENERGY STAR label, meeting strict energy-efficient guidelines set by the U.S. EPA.

Filters and Maintenance

A+ Genuine Pre-Filter

This air purifier uses Honeywell A and A+ Pre-Filters that should be replaced every 3 months. The filter check/reset light serves as a reminder for timely filter replacement.

R Certified True HEPA Filter

The HEPA filter captures microscopic allergens and should be replaced every 12 months for optimal performance.

Performance Ratings

The device has received the following CADR (Clean Air Delivery Rate) Ratings:

  • Tobacco Smoke: 300
  • Dust: 320
  • Pollen: 300

Pros and Cons


  • High-efficiency filtration
  • Quick air circulation
  • User-friendly interface
  • Silent operation
  • Energy-efficient


  • Higher initial cost, although currently discounted
  • Filters need regular replacement

The Honeywell HPA300 True HEPA Air Purifier offers a comprehensive solution for those looking to improve the air quality in large rooms. Its high-efficiency filtration, quick air circulation, and user-friendly Features make it a top choice for anyone dealing with allergies or simply wanting to breathe cleaner air.

Airmega AP-1512HH Mighty

Coway Airmega AP 1512HH Mighty
Coway Airmega AP 1512HH Mighty

Brand: Airmega
Model: AP-1512HH Mighty
Color Options: Black, White
Sale Price: $184.99 (Originally $229.99)
Coverage: 361 ft²
Room Size: Medium to Large Spaces
Filter Life: 6 – 12 months

Key Features

Rapid Air Purification

The Airmega AP-1512HH Mighty purifies 361 ft² in just 12.5 minutes and can handle up to 1,748 ft² in 60 minutes. This makes it a versatile choice for both medium and large spaces.

4-Stage Filtration System

Powered by Coway True HEPA technology, this air purifier Features a high-efficiency network of capture technologies. These include a True HEPA filter, deodorizing carbon filter, pre-filter, and a bipolar ionizer.

User-Friendly Indicators

The device comes equipped with a filter change indicator and an air quality indicator. It also offers automatic speed control and an eco-mode for energy efficiency.

Award-Winning Performance

For 9 consecutive years, the Airmega AP-1512HH has been a “Top Pick” by Wirecutter, a New York Times Company.

Filters and Maintenance


The Coway-engineered Pre-Filter captures larger particles like dust and pet hair. It’s washable and easy to maintain.

Deodorization Filter

This filter captures odors and harmful VOCs, providing powerful deodorization.

True HEPA Filter

This filter captures 99.97% of ultra-fine particles like viruses and bacteria and includes an antimicrobial treatment to deactivate contaminants.

Vital Ionizer

This bipolar device further reduces ultra-fine particles in the air, enhancing the purifier’s overall performance.

Additional Features

  • 30-Day Money-Back Guarantee
  • Free Shipping
  • 20% Off Filters Coupon with Registration

Pros and Cons


  • Rapid air purification
  • Comprehensive 4-stage filtration
  • User-friendly indicators
  • Award-winning performance
  • Energy-efficient eco-mode


  • Filters require regular replacement
  • Higher initial cost, although currently discounted

The Airmega AP-1512HH Mighty offers a comprehensive air purification solution with its rapid performance and 4-stage filtration system. Its user-friendly Features and award-winning performance make it a top choice for anyone looking to improve their indoor air quality.

Air PurifierProsCons
Dyson Pure Hot+Cool HP04 Air PurifierMultifunctional (can heat or cool your room), uses Dyson’s innovative HEPA H13 filter technology, real-time air quality monitoring, Wi-Fi enabledHigher price point
Honeywell HPA300 True HEPA Allergen RemoverExcellent for filtering allergens and larger bacteria and viruses, quiet operation mode, high-quality designFilter replacement costs can add up
Coway AP-1512HH Mighty Air PurifierEnergy star-rated, designed for medium rooms up to ~361 sq.ft, four-stage filtration systemSome users report difficulty in cleaning the filters

Conclusion: Making an Informed Decision

While no single measure can guarantee protection against the COVID-19 virus, investing in a high-quality air purifier can help reduce the risk of airborne transmission. The Dyson Pure Hot+Cool HP04, Honeywell HPA300 True HEPA Allergen Remover, and Coway AP-1512HH Mighty Air Purifier are some of the best options available on the market today. When making your decision, consider factors such as room size, filter replacement cost, noise level, and other Features that could be useful for you.


What is the best type of air purifier for COVID-19 protection?

HEPA (High-Efficiency Particulate Air) filters are considered to be the most effective at capturing virus particles and other airborne contaminants, making them the best option for COVID-19 protection. Some air purifiers also come with additional Features such as activated carbon filters or UV-C lights which can further enhance their germ-fighting abilities.

Can an air purifier completely eliminate COVID-19 from my home?

While an air purifier can help reduce the presence of viruses in your indoor environment, it cannot guarantee complete elimination of COVID-19. In addition to using an air purifier, it is important to follow recommended guidelines such as wearing a mask, practicing social distancing, and maintaining good hygiene practices.

How often should I replace the filters in my air purifier?

The frequency of filter replacement depends on several factors like usage time, environmental conditions, and filter quality. Generally speaking, it is recommended that you replace your HEPA filter every six months to maintain optimal performance and ensure proper filtration efficiency against harmful particles including COVID-19. However, some brands offer reusable washable HEPA filters which may last longer with regular cleaning maintenance.


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!