11 Best Air Purifiers for Clean Breathing

Your home’s air can contain dust, dander, mold, and pollutants. Everyday activities like pet grooming, using cleaning products, or having a central HVAC system can worsen indoor air quality.

To improve the air you breathe, consider getting an air purifier. According to the Environmental Protection Agency, indoor air can be more polluted than outdoor air, leading to allergies, asthma, and illness.

Kenneth Mendez, CEO of AAFA, explains that indoor air can contain triggers like dust mites, pet dander, smoke, VOCs, odors, pollen, and outdoor pollution. The best air purifiers trap and remove these particles.

We tested 40 air purifiers, assessing noise, ease of use, effectiveness, design, features, recommended area, and value, and came up with the 11 best air purifiers for you to choose.

11 Best Air Purifiers

1. Blueair Blue Pure 311i+ Max

BLUEAIR Air Purifiers for Large Home Room, HEPASilent Air Purifiers for Bedroom, Pets Allergies Virus Air Cleaner for Dust Mold, Blue Pure 311i+ Max

The Blueair Blue Pure 311i+ Max is an advanced air purifier designed to clean the air in your home efficiently and quietly. Using multi-level filtration, including a washable fabric pre-filter and a true HEPA filter, it captures a wide range of pollutants such as pet dander, dust mites, and pollen. Its smart features allow for remote control via a smartphone app, while its quiet operation ensures a peaceful environment.


  • Excellent performance in cleaning the air quickly and effectively.
  • Innovative washable fabric pre-filter traps large particles, extending the lifespan of the main filter.
  • True HEPA filter removes 99.97% of pet-related pollutants, ensuring high-quality air.
  • Smart capabilities enable remote control and monitoring via smartphone app.
  • Quiet operation, certified by Quiet Mark, maintains a peaceful atmosphere in your home.


  • Not ideal for very large spaces.
  • Requires periodic filter replacement and maintenance.
  • Initial cost may be higher compared to basic air purifiers.

2. Levoit Core 400S Smart True HEPA Air Purifier

LEVOIT Air Purifiers for Home Large Room Up to 1980 Ft² in 1 Hr With Air Quality Monitor, Smart WiFi and Auto Mode, 3-in-1 Filter Captures Pet Allergies, Smoke, Dust, Core 400S/Core 400S-P, White

The Levoit Core 400S Smart True HEPA Air Purifier is an advanced air cleaning system designed to improve indoor air quality. It utilizes a three-stage filtration process to effectively capture allergens, pollutants, and microscopic particles as small as 0.3 microns. Equipped with a precision laser sensor, it constantly monitors air quality and adjusts fan speed accordingly, ensuring optimal purification without excessive noise.


  • Three-stage filtration for thorough air cleaning.
  • Precision laser sensor for automatic adjustment of fan speed.
  • Extremely quiet operation at just 24 dB.
  • Can cover rooms up to 400 square feet.
  • Connects to the Levoit VeSync app for remote monitoring and control.


  • May be relatively expensive compared to basic air purifiers.
  • Requires periodic filter replacement, adding to maintenance costs.
  • App connectivity may be dependent on stable Wi-Fi connection.
  • Some users may prefer manual control options over automated features.
  • Designed primarily for smaller to medium-sized rooms.

3. Honeywell True HEPA Allergen Remover Air Purifier

Honeywell True HEPA Allergen Remover Air Purifier

The Honeywell True HEPA Allergen Remover Air Purifier is a device designed to improve indoor air quality, particularly beneficial for individuals with allergies or respiratory sensitivities. It operates using a two-stage filtration system comprising a pre-filter and a True HEPA filter. These filters work together to capture ultrafine particles as small as 0.3 microns, effectively removing common allergens and airborne contaminants from the air.


  • Effective two-stage filtration system captures 99.97% of airborne particles, including allergens and viruses.
  • Available in five different sizes to suit various room sizes and specific needs.
  • Affordable replacement filters ensure cost-effective maintenance.
  • Ideal for reducing indoor pollutants like pet dander, smoke, and pollen.


  • May require a larger model for coverage in larger spaces.
  • Continuous use may necessitate frequent filter replacements, adding to long-term costs.

4. Dreo Macro Pro

Dreo Air Purifiers Macro Pro, True HEPA Filter, Up to 1358ft² Coverage, 20dB Low Noise, PM2.5 Sensor, 6 Modes, 360 Filtration Cleaner Remove 99.985% Dust Smoke Pollen, Black

The Dreo Macro Pro is an affordable air purifier designed to clean the air in your home. It uses a three-stage filtration process, including a fabric pre-filter to catch large particles, a true HEPA filter to remove tiny pollutants, and an odor-neutralizing carbon filter to eliminate smells. While its interface may be a bit complicated, it offers excellent performance in improving indoor air quality, particularly in homes with pets, smokers, or air quality concerns.


  • Affordable option for improving indoor air quality.
  • Three-stage filtration system effectively removes various pollutants and odors.
  • Compact design doesn’t take up much space.
  • Offers different modes and fan speeds for customization.


  • Interface may be difficult to navigate.
  • Limited coverage area compared to larger, more expensive models.

5. Coway 200M True HEPA

Coway Airmega 200M True HEPA and Activated-Carbon Air Purifier, AP-1518R - White

The Coway 200M True HEPA air purifier is a compact device designed to clean the air in smaller spaces, particularly ideal for pet owners. It utilizes a four-stage filtration system, including a pre-filter to capture larger particles like pet hair, an activated carbon layer to eliminate odors, and a True HEPA filter to trap allergens, dust, and pollutants, resulting in fresher and healthier indoor air.


  • Compact design suitable for smaller spaces.
  • Effective at removing odors, making it great for pet owners.
  • Four-stage filtration system ensures thorough cleaning of indoor air.
  • Easy-to-clean pre-filter extends the life of the primary True HEPA filter.
  • Indicator lights remind you when it’s time for filter maintenance.


  • Not suitable for very large rooms.
  • May require more frequent filter replacements in heavily polluted environments.

6. Dyson Purifier Humidify+Cool Formaldehyde

Dyson Purifier Humidify+Cool Formaldehyde™ PH04

The Dyson Purifier Humidify+Cool Formaldehyde is a high-tech air purifier designed to enhance indoor air quality and comfort. It utilizes a special catalytic filter and True HEPA filtration to effectively eliminate tiny particles like formaldehyde, allergens, and pollutants as small as 0.3 microns. Additionally, it features built-in humidifying and cooling functions to maintain a pleasant environment.


  • Advanced filtration system effectively removes various pollutants.
  • Versatile design with built-in humidifying and cooling functions.
  • Quick performance in reducing airborne particles.
  • Integrated air monitor provides real-time air quality data.
  • User-friendly app for easy monitoring and control.


  • Higher price point.
  • Replacement filters can be costly.

7. Dyson Pure Hot+Cool Air Purifier

Dyson Pure Hot+Cool™ HP01 Air Purifier, Heater & Fan - White/Silver

The Dyson Pure Hot+Cool Air Purifier is a versatile appliance that serves as an air purifier, heater, and fan all in one. It uses a True HEPA filter to eliminate up to 99.97% of allergens, pollutants, and odors from the air, including smoke particles from wildfires. With various modes and a sleep timer, it offers convenience and comfort while maintaining clean indoor air quality. It can be controlled via the Dyson app and is compatible with Amazon Alexa for smart functionality.


  • 3-in-1 functionality (air purifier, heater, fan)
  • True HEPA filter removes 99.97% of airborne particles
  • Convenient features like different modes and a sleep timer
  • Smart compatibility with Dyson app and Amazon Alexa
  • Safe design with no exposed blades


  • Controls may require some time to get used to
  • Higher price point compared to traditional air purifiers

8. FridaBaby 3-in-1 Sound Machine, Air Purifier and Nightlight

Frida Baby 3-in-1 Sound Machine, Air Purifier + Nightlight with 3 Fan Speeds and Easy-Change Filter

The FridaBaby 3-in-1 Sound Machine, Air Purifier, and Nightlight is a versatile device designed to improve the ambiance of your baby’s nursery or small rooms up to 150 square feet. It combines three essential functions: air purification using HEPA filtration, soothing sound machine capabilities, and a gentle nightlight to create a comforting environment for your little one. The air purifier helps remove dust mites and allergens from the air, while the sound machine provides various calming sounds to aid in better sleep. The built-in nightlight emits a soft glow for nighttime activities without disturbing your baby’s rest.


  • HEPA filtration helps keep the air cleaner for easier breathing.
  • Multiple soothing sounds available to help your baby sleep better.
  • Gentle nightlight provides just enough illumination for nighttime tasks without waking your baby.
  • Compact and easy to move around.


  • Not as powerful as larger air purifiers.
  • Lightweight construction requires gentle handling.

9. Alen 75i Air Purifier

Alen Air Purifiers for Home Large Room Up To 1300 Sq Ft - BreatheSmart 75i HEPA Air Purifier w/ Pure Filter - Captures Allergens Dust Mold & Germs Perfect for Open Concept Spaces -Stainless

The Alen 75i Air Purifier is a powerful air cleaning system designed for large spaces. It uses a True HEPA filter with a carbon-activated layer to effectively capture tiny particles as small as 0.1 microns, including allergens, dust, smoke, and odors. With its ability to cover areas up to 1,300 square feet, it’s suitable for open-floor plans and big rooms. While it offers optional ionization, it’s not recommended due to the potential production of ozone, which can be harmful to lungs.


  • Strong cleaning ability for particles as small as 0.1 microns.
  • Suitable for large areas up to 1,300 square feet.
  • Stylish design with customizable front panel colors.


  • Higher initial cost.
  • Replacement filters can be expensive.
  • Ionization feature is not recommended due to ozone production.

10. NuWave OxyPure Air Purifier

Nuwave OxyPure Smart Air Purifier Cleans X-Large Area up to 2,934 sq ft, 5-Stage Filtration, Auto Mode with Air Quality & Odor Sensors, Removes 100% of Dust, Smoke, Pollen, Allergens, Odors, 5-Yr Wty

The NuWave OxyPure Air Purifier is a cutting-edge device designed to clean indoor air. It features a 5-stage filtration system, including a stainless steel pre-filter, ozone emission removal filter, True HEPA and Carbon filters, and a Bio-Guard filter. This setup efficiently captures and eliminates airborne pollutants such as dust, pet dander, pollen, smoke, and allergens, ensuring fresher and healthier air in your home.


  • Effective 5-stage filtration system.
  • Long-lasting filters reduce replacement costs.
  • Smart features like Auto mode and Wi-Fi control.
  • Suitable for large rooms up to 2,671 square feet.
  • Night-Time Mode offers quiet operation for undisturbed sleep.


  • Higher initial cost compared to some models.
  • May not completely eliminate all odors.

11. Clarifion Air Ionizer

Clarifion - Air Ionizers for Home (1 Pack), Negative Ion Filtration System, Quiet Air Freshener for Bedroom, Office, Kitchen, Portable Air Filter Odor, Smoke Dust, Pets, Eliminator, Mini Air Cleaner

The Clarifion Air Ionizer is a small device that improves indoor air quality by releasing negatively charged ions into the air. These ions attach to airborne particles like dust, pollen, and pet dander, making them heavier and causing them to fall to the ground. This process effectively cleans the air, reducing allergens and creating a fresher environment. Simply plug it in, and it starts working immediately without the need for complex setup.


  • Improves indoor air quality by reducing allergens and airborne particles.
  • Easy to use with no complicated setup required.
  • Compact and portable design allows for convenient placement.
  • Operates quietly without disturbing daily activities or sleep.
  • No need for expensive replacement filters, saving time and money.


  • Most effective in smaller rooms.
  • Lacks HEPA filtration for ultra-fine particles.
  • Limited odor control capabilities.
  • Initial operation may lead to increased dust settling.
  • Not a comprehensive solution for all indoor air quality issues.

How to Choose the Best Air Purifiers

Before buying an air purifier, here are some key factors to keep in mind:

  1. Room Size: Check the recommended room size mentioned in the purifier’s guidelines. Ensure it’s suitable for the size of your room. For instance, if you have a 350 sq. ft. bedroom, choose a purifier like the AROEVE Air Purifiers for Large Rooms.

  2. Room Selection: Consider where you’ll place the air purifier. Bedrooms and home offices are often good choices. Placing one near a cat litter box can help reduce dust.

  3. Features: Decide if you want advanced features or prefer a simple model. Some purifiers come with smart apps, while others offer basic functionality. Always prioritize HEPA technology for effective filtration.

  4. Noise Level: Think about noise preferences. Some people like white noise, while others need a quiet space for sleep. Check how loud the purifier can be on different settings.

  5. Portability: Assess the size and portability of the purifier. Determine if you’ll keep it in one room or need to move it around. Some models are more portable than others.

Do air purifiers work?

Air purifiers can be effective for allergies and asthma by reducing airborne particles that trigger reactions. Dehumidifiers help during high humidity. In poorly ventilated spaces, air purifiers can tackle smoke and odors.

Regarding COVID-19, it’s unclear if air purifiers prevent spread. CDC advises opening windows for ventilation. HEPA filters in some purifiers can remove some viruses.

HEPA filters are beneficial for allergies and asthma. Studies show improvements in symptoms. Placing purifiers in the room you spend time in may be more effective.

Research suggests air purifiers can reduce asthma triggers. In one study, a 43% decrease in particulate matter improved asthma symptoms.

What is a HEPA Filter?

A HEPA Filter is a high-efficiency air filter that is rated by its ability to remove particles as small as 0.3 microns. They are categorized with ratings from H10 to H14, with higher numbers indicating better performance. H10 and H11 filters are often called “True HEPA,” while H13 and H14 filters are referred to as “Medical Grade.”

HEPA filters are effective at stopping smoke and limiting the spread of airborne viruses and bacteria, including COVID-19. Despite their 0.3-micron rating, HEPA filters can also capture larger particles like pollen, mold spores, and pet dander, making them great for allergy relief.

It’s important to be cautious when choosing a HEPA filter, as some manufacturers may use terms like “HEPA-like” or “HEPA-type” without clear quality standards. Additionally, it’s advisable to select a purifier with a prefilter to trap larger items such as pet hair before they reach the HEPA filter to maintain its efficiency.

Do air purifiers help with dust?

Air purifiers can help with dust by using HEPA filters to capture particles like dust, pet dander, and pollutants, improving indoor air quality. However, completely eliminating all dust particles can be challenging since they settle quickly.

For those with allergic asthma caused by dust mites, air purifiers can be beneficial. Studies show reduced dust mite concentrations after using HEPA air purifiers.

Air purifiers are most helpful for those with allergies, asthma, or COPD, and indoor pets. Regularly clean and change filters as recommended by the manufacturer to maintain effectiveness.

Choose an air purifier with a high CADR for tobacco smoke to target tiny dust particles, matching it with your room size.

Do air purifiers help with smells?

Air purifiers can improve indoor air quality and reduce some odors, but they don’t guarantee complete odor elimination.

According to the EPA, air purifiers can enhance air freshness and cleanliness by reducing pollutants. While they won’t make your home smell perfect, they can make a positive difference, especially for indoor spaces.

Research primarily focuses on improving air quality rather than targeting odors directly. They can reduce indoor air pollution significantly but may not eliminate odors entirely.

Air purifiers filter and trap odor-contributing particles, but no filter catches every odor. Room size matters; larger spaces need purifiers with a higher Clean Air Delivery Rate (CADR).

The ability to tackle specific odors depends on purifier design. Some handle moldy, cooking, pet, and chemical odors. Still, they have limits and can’t handle dangerous gases like carbon monoxide.

Quality varies between brands, and filter replacement is crucial for optimal performance.

Air purifier benefits

Air purifiers offer benefits, especially for those with respiratory issues like allergies, asthma, or COPD. They help by trapping harmful airborne particles and microbes, making indoor air safer.

While more research is needed, air purifiers can be essential for some individuals. Cleaner air is especially helpful for those with breathing problems and allergies.

Asthma sufferers can monitor symptoms with an air purifier and should still follow their doctor’s prescribed management. The same applies to allergy sufferers, with cleaner air helping manage pollen and dust, particularly during high pollen seasons.

What type of air purifier filter works the best?

The best air purifier filters are equipped with HEPA filters, which remove 99.97% of particles like pollen, dust, mold, and contaminants as small as 0.3 microns. HEPA filters are effective for larger or smaller particles.

Ensure your air purifier has a HEPA filter for optimal performance, as other filters may not work as well. Additionally, activated carbon filters can help remove gases when a substantial amount of material is used in the filter.

How often do I need to change my air purifier filter?

Change your air purifier’s filter every 6 to 12 months, considering the level of pollution and usage. Look for models with filter change indicators to remove guesswork.

Certain air purifiers use replacement filters, while others, like the Kenmore 850e, have reusable filters that need cleaning, similar to filter replacement intervals.

How often should I run my air purifier?

For best results, keep your air purifier running all the time. It continuously removes particles and monitors air quality. Use fan settings, timers, and sleep mode for customization.

While constant use affects energy bills, consider Energy Star certified purifiers for cost-efficiency. They are more energy-efficient than non-certified models.

Can an air purifier keep me from getting sick?

An air purifier can help reduce your exposure to airborne illnesses, but it’s not the sole defense against getting sick.

Indoor air quality matters for preventing the spread of airborne infections like flu, measles, or COVID-19, especially for vulnerable individuals.

Alongside using an air purifier, improve indoor air quality by opening doors and windows to remove contaminants. Use bathroom and kitchen fans.

Adapt strategies based on specific pollutant issues; ventilation may not be effective for pollen or during wildfires. To control mold, keep surfaces dry and humidity below 60%. Regular cleaning helps with allergen control.

Do air purifiers need HEPA filters?

Yes, air purifiers should have HEPA filters. HEPA purifiers are effective for allergens and viruses. Keep in mind that some particles like pollen and dust mites are too small to be filtered, so consider additional measures for allergies to those.

Are expensive air purifiers worth it?

Expensive air purifiers can be worth it if they offer unique features like 2-in-1 capabilities, such as purifying and humidifying, like the Dyson Air Purifier Humidify and Cool. It’s a great choice if you need both functions and have limited space.

However, if you don’t require the extra features, more affordable options like the Levoit Air Purifier can still be effective. Consider your specific needs before investing in a costly air purifier.

Do air purifiers protect against smoke from wildfires?

Air purifiers with True HEPA filters can effectively protect against smoke from wildfires. These microscopic smoke particles can cause various health issues. While outdoor pollution or temporary bad air may not be a constant concern, a HEPA filter-equipped purifier can filter out most large particles and address smoky smells, providing a reliable defense.

Do air purifiers protect against COVID-19?

Air purifiers with HEPA filters can capture particles, including COVID-19. Manufacturers claim high particle removal rates. However, the science in 2023 isn’t clear on how quickly the virus spreads through droplets between people. Follow CDC guidelines for COVID protection, including vaccination and mask-wearing indoors in high transmission areas.

Are there any downsides to air purifiers?

Air purifiers have limitations and should not replace other indoor pollution control measures like regular vacuuming and proper ventilation. Maintaining heating and cooling equipment is crucial for whole-house filtration.

Some air purifiers using ionizers may produce ozone, which can irritate lungs and worsen asthma. Stricter industry standards are needed for such products to prevent harm.

If considering an ionizer-based air cleaner, ensure it meets the California Air Resources Board (CARB) limit of 50 parts per billion. Operating the device with the ionization function turned off is still recommended until more research confirms safety and effectiveness.


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