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8 Best Ozone Free Air Purifiers

Last updated June 8, 2021

This post may contain affiliate links.

Author avatar Danny Ashton

Danny as been writing about air purifiers for 10+ years. He is a major fan of home technology, which makes him the perfect person to test and evaluate products for HouseFresh

What actually is ozone and how does it work? 

Ozone is a highly reactive gas that has the ability to change the chemical makeup of air pollutants when the two come into contact, therefore neutralizing the pollutant. According to the EPA, inhaling ozone, even in relatively low quantities can cause:

  • Chest pain 
  • Coughing
  • Shortness of breath
  • Throat irritation. 

It’s less of an issue than it was 10 years ago as regulations were brought into place to limit the amount of ozone purifiers could emit, but there are still many air purifiers on the market that emit ozone gas in order to remove pollutants from the air. 

So that you can rest easy knowing the air you breathe is safe, we picked out our favorite ozone-free air purifiers. As always, we considered a variety of factors during our research. First and foremost, we analyzed Consumer Reports data to find purifiers that have been tried and tested by real people with verified real reviews. 

We then made sure there was a range of purifiers for different budgets, suitable for small rooms or large spaces, and checked out the estimated running costs of each machine. Whether you’re looking for a purifier to remove gases and odors, airborne particles, or an all-rounder that will target both, there is an ozone-free purifier for everyone on this list.

1. LEVOIT Air Purifier Core 300

LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White

The LEVOIT Air Purifier Core 300 is one of the best ozone free air purifiers for smaller rooms. Even though it’s compact, it manages to cover small areas like a bedroom up to five times per hour. It features an H13 True HEPA filter that works to remove around 99.97% of airborne particles that are as small as 0.3 micrometers. This lets the unit capture common household allergens like dander and pollen.

Beyond that, this purifier works to eliminate odors from smoke whether it is from cooking or tobacco thanks to the high-efficiency activated carbon filter that does well at absorbing fumes and odors. A quality trait about this purifier is that it’s designed so you can upgrade it as needed with specialized replacement filters like a pet allergy filter.

This unit can run any time you need it to as it offers various fan speeds and a Sleep Mode function for near-silent operation. Also, the display light can be turned off for completely undisturbed sleeping. If you want to control how long it operates, you can use the timer to set it for 2, 4, 6, or 8 hours.

  • Purifier Technology: H13 True HEPA
  • Room Size Suitability: 219sqft.
  • Filter Life: 6 months
  • Noise Level: 24 dB to 54 dB
  • Monthly Energy Consumption: $13 PA

What we love:

  • Great Sleep Mode function for nighttime use
  • Does well at getting rid of odors
  • Simple and modern design that won’t stand out
  • Lightweight for easy transporting

We don’t like this as much:

  • The touch control panel might not always be responsive
  • Not very effective on the lowest setting
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
  • High Performance: Enjoy fresh air in 12 minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 refreshes the air 5x per hour in rooms as large as 219 ft² / 20 m²
  • Find Relief: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
  • Multiple Filter Choices: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in wildfire, smoke and VOCs. And if you’re a pet owner, try the Pet Allergy Filter to capture pet dander and absorb unpleasant odors.
  • Most Silent Air Cleaner: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology reduces noise levels to a near-silent 24dB, ensuring the Core 300 won’t get in the way of a good night’s rest.
  • Sleek Design: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and modern white finish help your air purifier fit anywhere in your home/bedroom/room.

2. Whirlpool WPPRO2000M Whispure True HEPA Air Purifier

Whirlpool WPPRO2000M Whispure True Hepa Air Purifier, Activated Carbon, 508 Sq ft, Smart Auto Mode, Ideal For Allergies, Odors, Pet Dander, Mold, Smoke, Wildfire, Germs - Silver

This Whirlpool Whispure Air Purifier is an energy-saving purifier that focuses on reducing odors and removing allergens that linger in your home. With its ozone-free system, it features a True HEPA filter to handle capturing 99.97% of allergens all without releasing pollutants back into the air. This pairs well with both the pre-filter and the activated carbon filter so that you can focus on breathing better.

It is a smart air purifier as it features air quality monitoring with colored light indicators to let you know when the air quality changes. You can place it on auto mode so that it will adjust accordingly when it senses these changes, adapting the fan speed as needed. Alongside that, you can still set a timer so that it only runs for how long you want it to. It comes with a 2, 4, 6, and 8-hour timer setting.

For your comfort, this unit has a sleep mode function for quieter operation, and it also has an adjustable night light. This is a good air purifier to run in a home with kids too as it features a child safety lock.

As for its overall appearance, it is a bit larger compared to other sleek air purifiers. However, this look provides it with an improvement in its air vent design that further allows it to run quieter even on higher speeds.

  • Purifier Technology: True HEPA filter
  • Room Size Suitability: 508sqft.
  • Filter Life: 12 months
  • Noise Level: 42 dB
  • Monthly Energy Consumption: $41 PA

What we love:

  • Doesn’t make much noise on various speeds
  • Well-built with solid seals
  • Has a handle for easier carrying
  • Designed with good sensitivity to air quality changes

We don’t like this as much:

  • May initially release a plastic-like odor when first turned on
  • Replacement filters might be difficult to get
Whirlpool WPPRO2000M Whispure True Hepa Air Purifier, Activated Carbon, 508 Sq ft, Smart Auto Mode, Ideal For Allergies, Odors, Pet Dander, Mold, Smoke, Wildfire, Germs - Silver
  • [ Best in its Class ] — Cleans air in a 508 sq. ft. space. For allergy sufferers, best use in 508 sq. ft. space. CADR rated 328. This makes the Wppro2000 the most powerful air purifier in its class.
  • [ Ideal for Allergen Removal ] — True HEPA filter captures 99. 97% of dust and allergens as small as . 3 microns such as household dust, pet dander, mold spores and plant pollen.
  • [ Keeps the Air Clean ] — Reduces the amount of airborne germs/viruses by filtering and continuously cleaning airborne particles away from your space.
  • [ Reduce Odors ] — Breathe freely as the active carbon filter reduces odors from pets, smoking, and cooking.
  • [ Whispure Quiet ] — Features Quiet Partner System – the quietest high efficiency air purifier technology. Leave it running while you sleep or while you work. Perfect for the bedroom or the office.

3. Coway Airmega 300

Coway Airmega 300 Smart Air Purifier with 1,256 sq. ft. Coverage

The Coway Airmega 300 is a rather large device, but it features a sleek design so that it won’t be too out of place no matter what room you place it in. It can clean the air at least two times per hour without difficulty. This is helped by its powerful suction design since it can draw in the impurities in the air from both sides of the unit and push out the clean and filtered air from the top.

Besides freeing the room of 99.97% of airborne particles with its True HEPA filter, it also works to reduce over 99% of volatile organic compounds and fumes with its deodorization filter. It does all this without the risk of ozone exposure.

This is a popular unit, too, thanks to its smart technology feature. You can set Smart Mode so that it will automatically keep track of the air quality and adjust the fan based on what the area needs. It can monitor the air as “good”, “moderate”, “unhealthy”, and “very unhealthy”. Each features its own color so you can recognize it at a glance.

There’s no concern about when it’s time to maintain the filters either thanks to the simple filter life indicators. Both the pre-filter and the Max2 filter have their own lights so you know when to wash the first and replace the second.

  • Purifier Technology: Coway Airmega Max2 | True HEPA
  • Room Size Suitability: 1,256sqft.
  • Filter Life: 12 months
  • Noise Level: 43.2 dB
  • Monthly Energy Consumption: $21 PA

What we love:

  • The auto mode function responds fast
  • Good airflow to manage larger rooms
  • Easy to set up and clean/replace filters
  • Filters last a good deal of time

We don’t like this as much:

  • Would be nice if the light could turn off at night
  • The buttons can be hard to press at times
Coway Airmega 300 Smart Air Purifier with 1,256 sq. ft. Coverage
  • Coway Airmega 300 room air purifier is designed to accommodate room sizes up to 1,256 square feet and cleans the air at least two times per hour when used as recommended.
  • Coway Airmega Max2 filter – combined activated carbon and True HEPA filter – captures and reduces up to 99.97% of particles 0.3 microns in the air, including pollen, pollutants and other allergens. It also reduces more than 99% of volatile organic compounds and reduces fumes such as NH3 and CH3CHO. It also includes washable and permanent pre-filter to catch larger dust particles.
  • Coway Airmega’s pollution sensor communicates indoor air quality in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is every minute of the day.
  • Coway Airmega has five fan modes: Smart, Sleep, Low, Medium and High. The noise level is nearly silent at lower speeds and the max noise it creates at the highest setting is 43.2 dB.
  • Smart mode with three settings, Coway Airmega smart air purifier adapts to its surroundings. Fan speed automatically adjusts based on the room’s air quality and lighting conditions to improve air quality.

4. Dyson Pure Cool TP04

Dyson Pure Cool, TP04 - HEPA Air Purifier and Tower Fan, White/Silver

The Dyson Pure Cool TP04 is a good choice air purifier when you want something that looks sleek and stylish. Unlike most other units, this blends an air purifier with a tower fan so you can get more use out of it. This features a sealed HEPA activated carbon filter so there is no concern with any ozone exposure. Low maintenance is needed, too, as the unit will let you know when it’s time to replace the filters.

As for how it works, Pure Cool features Air Multiplier technology so that it can properly circulate the air throughout a small to medium-sized room. It features an oscillating fan as well that goes up to 350°, further helping it reach the whole room. The unit will sense the current air quality too.

You don’t always have to have the airflow pointing toward you either. If you don’t want direct airflow, you can switch the settings so that instead it blows backward. The unit will still handle purifying and cooling the room, but without it blowing directly in your face.

Another convenient aspect of this air purifier and fan combination is that you don’t have to walk up to the unit to use it. It comes with a quality remote that is curved and magnetized so that it can attach directly to the fan for storage when you’re done using it. Alongside that, it has a compatible app you can download so you can use your phone to control it. It is also capable of voice control via Alexa or Siri.

  • Purifier Technology: HEPA activated carbon | HEPA
  • Room Size Suitability: 800sqft.
  • Filter Life: 12 months
  • Noise Level: 40 dB
  • Monthly Energy Consumption: $20 PA

What we love:

  • The remote and app allow you to control the unit at a distance
  • Features smooth and quiet oscillation
  • Display light automatically dims in low-light rooms
  • Features a stylish design that’s safe to use around kids/pets

We don’t like this as much:

  • The airflow could be stronger
  • The app might have some problems working from time to time
Dyson Pure Cool, TP04 - HEPA Air Purifier and Tower Fan, White/Silver
  • The only purifying fan to clean a whole room properly
  • Intelligently purifies and cools you.
  • Dyson technology helps create a cleaner, healthier home - Our vacuums and purifiers are scientifically proven to capture particles as small as allergens and bacteria.
  • 360° filtration system uses activated carbon to remove gases and odors and a HEPA filter to capture 99. 97% pollutants as small as 0. 3 microns.
  • Air Multiplier technology circulates purified air throughout the whole room

5. Medify MA-25 Air Purifier

Medify MA-25 Air Purifier with H13 True HEPA Filter | 500 sq ft Coverage | for Smoke, Smokers, Dust, Odors, Pet Dander | Quiet 99.9% Removal to 0.1 Microns | White, 1-Pack

The Medify MA-25 Air Purifier is a tabletop purifier, and with this design, you can take it with you to different places like hotels or use it at job sites without it getting in the way. It is also a nice design to use in a child’s bedroom or inside a nursery to keep the air fresh and clean without the risk of it emitting ozone.

It only uses powerful H13 filters which is a higher grade than True HEPA filters as it can remove up to 99.99% of airborne particles. This works by tackling common allergens as well as the likes of mold, bacteria, and viruses, making it an ideal unit to keep your area healthy for everyone. The unit works on multiple sides, too, for better room coverage.

Using it is simple thanks to its straightforward touch control panel. This is easy to wipe down as needed too, much like you would clean your phone screen since it’s made from tempered glass. You can set timers and adjust the fan speed through the unit as you see fit.

If you want to use it at night or without disturbing anyone else around, you can place the unit in Night Mode. This allows it to work on the lowest of the three fan speeds, and the control lights are even dimmable so that nothing should interrupt sleep or bother anyone.

  • Purifier Technology: H13 filters
  • Room Size Suitability: 1,000sqft. (1 hour) | 500sqft. (30 min) | 250sqft. (15 min)
  • Filter Life: 2500 hours | 3 months
  • Noise Level: 35 dB to 52 dB
  • Monthly Energy Consumption: $9 PA

What we love:

  • Comfortable to use at night while sleeping
  • Quality and safe construction with child-lock feature
  • Multiple timer settings to use
  • Great size for use in a small room

We don’t like this as much:

  • Filters can get a bit expensive to replace
  • The power cord might sometimes disconnect from the unit
Medify MA-25 Air Purifier with H13 True HEPA Filter | 500 sq ft Coverage | for Smoke, Smokers, Dust, Odors, Pet Dander | Quiet 99.9% Removal to 0.1 Microns | White, 1-Pack
  • MAXIMUM COVERAGE: Cleans spaces up to 1,000 sq ft in one hour, 500 sq ft in 30 minutes (CADR 230). Ideal for homes, apartments, bedrooms, living rooms, offices, schools, universities, classrooms, hospitals, restaurants, and other businesses.
  • HEPA H13 FILTRATION: Trusted to remove 99.9% of particles including odors, smoke, pet dander, dust, and more down to 0.1 microns in size. Captures finer particles than HEPA H11 (0.3 microns).
  • ULTRA QUIET: Choose from 3 fan speeds, with the lowest setting operating virtually silent. Runs at 110 Volts at a min noise level of 35dB and max of 51dB. For the most discreet operation, enable sleep mode to completely dim the unit's panel lights.
  • EASY TO USE FEATURES: Includes a sleek touch screen operation panel with 0-8 hour timer, fan speed, sleep mode, filter replacement indicator, and child lock, great for both kids and pets.
  • QUALITY TESTED & BACKED: CARB, ETL, and Energy Star certified. Backed by a USA registered Lifetime Warranty when genuine Medify replacement filters are used. The replacement filter (B084Q965BF) lasts 2,500 hours or about 3-4 months.

6. Bissell Smart Purifier

Bissell Smart Purifier with HEPA and Carbon Filters for Large Room and Home, Quiet Bedroom Air Cleaner for Allergies, Pets, Dust, Dander, Pollen, Smoke, Odors, Auto Mode, air220, 2609A

With the Bissell Smart Purifier, you are free to set it up just about anywhere in your home without restricting the unit in any way thanks to how it sucks in the air in the front and blows the filtered air out from the top. The purifier is designed more compact too so that it can safely tuck away against a wall, behind a couch, etc. Even the filters can be accessed from the front for convenience.

Controlling the unit is simple too with its intuitive soft touch dial. It can work well at clearing the air in larger rooms like a bedroom, basement, or family room. With its five fan speeds, you can adjust it according to what you see fit. There is a VOC sensor as well that will automatically adjust the fan speed based on the odors that might be in the air.

Knowing the air quality is simple with the sensor as it features color-coded indicator lights. Otherwise, you can adapt the speed yourself if you don’t want to leave it on auto mode.

You can use this unit at night with the sleep mode system in place. It will dim the lights on the control panels and keep the fan running at more comfortable, nearly silent speeds instead. The night mode can be automated too.

  • Purifier Technology: 3-stage filtration | HEPA | Honeycomb-Structured
  • Room Size Suitability: 800sqft.
  • Filter Life: 12 months
  • Noise Level: 37 dB to 60 dB
  • Monthly Energy Consumption: $27 PA

What we love:

  • Powerful suction to clean and freshen the air fast
  • The legs keep the unit off the ground
  • Still has good airflow even when set up against a wall
  • Features several fan speeds for good variety

We don’t like this as much:

  • The sensor doesn’t detect dust particles in the air
  • Hefty in design so it may be hard to move around for some
Bissell Smart Purifier with HEPA and Carbon Filters for Large Room and Home, Quiet Bedroom Air Cleaner for Allergies, Pets, Dust, Dander, Pollen, Smoke, Odors, Auto Mode, air220, 2609A
  • EVERY PURCHASE SAVES PETS. Bissell proudly supports Bissell Pet Foundation and its mission to help save homeless pets.
  • Captures indoor smoke and outdoor smoke that gets indoors.
  • 3 STAGE FILTRATION. Includes a fabric pre-filter, an activated carbon filter and a HEPA filter which captures 99.97% of 0.3 micron particles and smaller including pollen, dust, smoke, hair, and pet dander.
  • HONEYCOMB-STRUCTURED FILTER. Activated carbon filter captures gases and VOC’s, including odors from pets, cooking, smoke, and other common household odors.
  • AUTOMATED CIRQULATE SYSTEM. Monitors and provides colored-coded, indoor air quality feedback and adjusts to the appropriate fan speed.

7. Blueair Classic 605

Blueair Classic 605 Air Purifier with HEPASilent Filtration for Allergen and Hay Fever Reduction, Large Rooms 775 sq. ft. WiFi Enabled, ALEXA compatible , White

The Blueair Classic 605 offers powerful airflow so that when the pollutants are pulled into the unit, cleaner air is pushed out throughout the entire room, filling medium-sized spaces with relative ease in little time. This unit features quality purifying technology via True HEPA performance that can help you and anyone else in your home control allergies and asthma.

There are three fan speeds to choose from with a whisper-quiet operation as well so you can use it at lower settings at night. Controlling it all is straightforward with the easy-touch and intuitive control panel. There’s also a filter change indicator so you’re aware when it’s time to get a new one.

You’re given more control via the compatible app so you can not just adjust the settings, but check up on the air quality in the room even when you are not home.

  • Purifier Technology: HEPA Silent
  • Room Size Suitability: 700sqft.
  • Filter Life: 6 months
  • Noise Level: 33 dB to 62 dB
  • Monthly Energy Consumption: $21 to $36 PA

What we love:

  • Features a solid metal design that’s long-lasting
  • Good maneuverability so it’s easy to set up in various locations
  • Smooth airflow output
  • Easy to access the filter compartment

We don’t like this as much:

  • The fan could be quieter on higher speeds
  • Might release an odor when first using the unit
Blueair Classic 605 Air Purifier with HEPASilent Filtration for Allergen and Hay Fever Reduction, Large Rooms 775 sq. ft. WiFi Enabled, ALEXA compatible , White
  • Battle allergies, asthma and hay fever with HEPASilent technology which leverages electrostatic charge and mechanical filtration to deliver true HEPA performance capturing 99.97% of air airborne pollutants including dust, mold, pet dander, pollen.
  • Certified clean air delivery rate (CADR) of 500 cubic feet per minute with a superior, 5 air changes per hour.Energy consumption:15 - 100 W
  • 3 fan speeds including whisper quiet operation allow you to breathe and sleep easier without disruption
  • WiFi enabled for control through your Blueair friend app and amazon Alexa compatible. Sleep without disruption with noise-levels no louder than a whisper on low speed (32 db.) and equivalent to the white noise of a floor fan on high (62 db.)
  • For large rooms between 700 square feet and 800 square feet (aham rated at 698 square feet) such as large bedrooms, living rooms, and kitchens

8. IQAir GC MultiGas HEPA Air Purifier

IQAir [GC MultiGas Air Purifier] Medical- Grade Air [HyperHEPA Filter] - Odors, Smoke, Allergies, Pets, Asthma, Pollen, Dust, MCS, Swiss Made

The IQAir GC MultiGas Purifier is a robust air purifier with quality medical-grade HyperHEPA air filtration. It captures ultrafine particles that can cause lasting health complications without the risk of ozone, and it manages to circulate this freshened and healthier air throughout the room through 320° air delivery.

The filter media is 100% sealed too so that there’s no risk of any air leakage. With a maintenance-free motor and a new fan, it has a more powerful and durable design to last you a long time through frequent use.

This comes with a remote control that is compact and easy to use. You can adjust through several fan speeds and timer functions so that it cleans the room the way you need it to. Also, there’s a filter light indicator to keep you aware of when it’s time to change it out.

  • Purifier Technology: IQAir’s exclusive HyperHEPA
  • Room Size Suitability: 1,125sqft.
  • Filter Life: 18 mon. (PreMax) | 2 yrs (V5-Cells) | HyperHEPA (4 yrs/2 mon.) | 1 yr (pre-filter) | 2 yrs/5 mon. (gas cartridges) | 2 yrs/5 mon. (Post-filter sleeves)
  • Noise Level: 59 dB
  • Monthly Energy Consumption: $7 to $48 PA

What we love:

  • Good variety in timer settings
  • The unit is overall easy to set up
  • Does well at removing strong odor
  • Numerous fan speeds to cycle through

We don’t like this as much:

  • Has a bulky and somewhat awkward build design
  • Doesn’t have an auto air quality sensor
IQAir [GC MultiGas Air Purifier] Medical- Grade Air [HyperHEPA Filter] - Odors, Smoke, Allergies, Pets, Asthma, Pollen, Dust, MCS, Swiss Made
  • #1 Rated room air purifier for multiple chemical sensitivity (MCS) & tobacco smoke
  • Proven medical-grade air filtration: 100x more effective than HEPA air purifiers
  • Only IQAir’s exclusive HyperHEPA filters stop ultrafine particles (down to 0.003 microns)
  • Powerful filtration: covers a room size up to 1,125 sq ft (104.5 sq m)
  • Direct purchases from the manufacturer will require a signature to acknowledge receipt upon delivery.

FAQs About Air Purifiers for Ozone Free

How do I know if my air purifier emits ozone?

The quickest way to notice if an air purifier you have is exposing you to ozone is the smell. It will generally have an antiseptic odor. Also check out the surface surrounding the air purifier. If it is dusty, there’s a high chance it’s emitting ozone.

Another good indicator is the lighting on the unit. Ozone-emitting purifiers tend to have a blue light coming off it.

Is an air purifier good for my health?

As long as the air purifier features the likes of HEPA filters and carbon filters, then it should be great for your health as they work to remove smaller particles like allergens, bacteria, and more.

However, ozone-based purifiers have a high chance of being harmful and less effective at clearing the air. Ionizers may be good at clearing out bacteria, but they don’t tend to perform as strongly as True HEPA-based purifiers.

Can an ionizer make you sick?

There are many critics that believe ionizers can give off high levels of ozone that can negatively impact both the environment and your health. This is because ionizers work to combat chemicals and disease-causing microbes in the air.

On the other hand, the ozone gases released to do this is toxic. It can cause inflammation in the lungs and throat, and overexposure can lead to lasting health issues such as chest tightness and breathing difficulties.

Which Air Purifier is Right for You?

Although there are many ozone-related air purifiers that work to kill harmful chemicals and diseases in the air, the production of toxic ozone makes them too risky to use in your home. Thankfully, there are numerous products available on the market for you to use. A good thing to do is always look at the type of filters used and go from there. It’s easier to narrow these things down when factoring in your needed room coverage, noise concerns, etc.

So, which from our list do you feel benefits you the most? Check out our top three picks based on specific room sizes below.

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API