Does Dyson Air Purifier Produce Ozone? Unveiling the Facts

  • Author: Irene Batres
  • Date: May 1, 2023
  • Time to read: 6 min.

Are you concerned about the hidden dangers lurking in the air you breathe? 

You’re not alone! 

Ozone has become a hot topic, and it’s essential to understand its potential risks.

But what about the very air purifiers we rely on to safeguard our indoor environment? Could they be producing ozone as well?

Get ready to uncover the truth as we explore the fascinating realm of Dyson air purifiers. 

Together, we’ll tackle the pressing question: Do Dyson air purifiers emit ozone? 

Let’s embark on this journey together and put your worries to rest as we clarify this essential topic!

Does Dyson Air Purifier Produce Ozone?

Does Dyson Air Purifier Produce Ozone

Dyson air purifiers are designed not to produce ozone, ensuring a healthy and clean indoor environment for users. Unlike other air cleaning products that utilize onboard air ionizers, Dyson avoids using ozone-emitting devices in its air purifiers. 

This is an important consideration, as ozone can harm human health in high concentrations, potentially causing respiratory irritation, coughing, wheezing, and shortness of breath.

Why Dyson Air Purifiers Don’t Produce Ozone

Dyson air purifiers intentionally avoid producing ozone, ensuring a clean and healthy environment for indoor spaces. This is achieved by excluding air ionizers in their design. 

Air ionizers emit a small electrical charge to capture pollutants, creating ozone as an unintended by-product.

Instead, Dyson air purifiers utilize comprehensive HEPA filtration systems and cutting-edge sensing technology to enhance indoor air quality without generating harmful by-products like ozone.

Dyson’s commitment to providing a safe and effective solution makes its air purifiers a top choice for people seeking cleaner air. 

This is especially true for those living in polluted areas or with allergies, COPD, or asthma.

In addition to their standard air purification features, Dyson offers a variety of air purifiers with added capabilities such as cooling, heating, humidification, and formaldehyde removal. 

These options cater to the specific needs of users, ensuring cleaner air for everyone, particularly those in polluted environments or coping with respiratory issues.

Also Read: Dyson Air Purifier Keeps Turning Off? and Ways To Reset A Dyson Air Purifier Without Remote

Identifying Air Purifiers That Emit Ozone

Air purifiers emitting ozone can be beneficial and harmful, depending on their ozone concentration levels.

Ozone can effectively neutralize odors, some pollutants, and bacteria, but high concentrations can negatively affect human health. 

To identify air purifiers that emit ozone, look for key characteristics and common types.

Key Characteristics:

  1. Presence of an onboard air ionizer
  2. Use of UV light technology
  3. Claims of odor elimination

What Types Of Air Purifiers Emit Ozone

There are several types of air purifiers that emit ozone. 

Some of the common types include:

Type of Air PurifiersDescriptionExamples
Ozone GeneratorsProduce ozone intentionally to neutralize odors, bacteria, and pollutants. Use them carefully to avoid excessive ozone levels in the living space.Green Air Classic, Alpine Air, and Airthereal B50 Mini 
Ionic Air PurifiersUse corona discharge to create charged particles in the air, capturing air pollutants but can generate ozone as a by-product.Sharper Image Ionic Breeze, Oreck XL Air Purifier
UV-C Air PurifiersSome devices using UV-C light technology can generate ozone as a by-product when UV light interacts with oxygen molecules in the air. Not all UV-C air purifiers emit ozone.TRACS, Air Oasis iAdaptAir, Germ Guardian

Ozone Generators:

These air purifiers intentionally produce ozone to neutralize odors, bacteria, and pollutants. 

The amount of ozone produced depends on the model and settings. It is essential to use them carefully to avoid excessive ozone levels in the living space. (1.)(2.)(3.)

Ionic Air Purifiers:

Also known as ionizers, these air purifiers use a process called corona discharge to create charged particles in the air. 

This process captures air pollutants but can also generate ozone as a by-product.

Examples include the Sharper Image Ionic Breeze and the Oreck XL Air Purifier.

UV-C Air Purifiers:

While not all UV-C air purifiers emit ozone, some devices that use UV-C light technology can generate ozone as a by-product when UV light interacts with oxygen molecules in the air.

It’s important to note that not all devices within these categories emit significant amounts of ozone. 

The ozone levels produced vary depending on the specific model and manufacturer. 

When choosing an air purifier, consider checking for certifications and testing that indicate low ozone emissions.

Also Read: Will A Dyson Air Purifier Detect Mold?

Which Air Purifier Does Not Produce Ozone?

Air purifiers that do not produce ozone typically use filtration methods that do not involve ionization or certain types of UV-C technology. 

  1. Mechanical HEPA filters: These air purifiers use high-efficiency particulate air (HEPA) filters to physically capture airborne particles, including dust, pollen, mold spores, and pet dander. They do not produce ozone as a by-product.
  1. Activated carbon filters: These filters use porous carbon to adsorb gases, odors, and volatile organic compounds (VOCs) from the air. 

They are often combined with HEPA filters for improved air quality and do not emit ozone.

Also Read: Cleaning Dyson Air Purifier Filters What To Know

Understanding Ozone And Its Effects

What Is Ozone:

Ozone is a gas with three oxygen atoms in the Earth’s upper (stratosphere) and lower (troposphere) atmosphere. 

In the stratosphere, it forms a protective layer that shields us from harmful ultraviolet rays. 

However, ground-level ozone harms humans, causing respiratory issues and damaging plants and materials. 

It forms a secondary pollutant due to human activities like transport and industry emissions. 

Controlling these emissions and combating climate change can help reduce ground-level ozone concentrations. (1.)(2.)

What Does Ozone Smell Like?

Ozone has a distinct, pungent smell often described as sweet, metallic, or garlicky. It can also be compared to the smell of electrical sparks or burning plastic. 

While ozone is associated with the fresh scent after a thunderstorm, breathing is harmful and can damage lung tissue. (1.)

Ozone Exposure Symptoms

When exposed to ozone, you may experience various symptoms, such as persistent coughing, throat irritation, chest discomfort, and tightness. 

You could also encounter wheezing, shortness of breath, and difficulty taking deep breaths. 

Ozone has the potential to inflame and damage your airways, increase the risk of lung infections, and worsen existing lung conditions. Be aware that long-term exposure might even lead to asthma. 

Kids may not report how they feel even if their lung function is affected. 

The EPA standard for safe ozone levels is 80 parts per billion (ppb) over an 8-hour period. 

Concentrations above 100 ppb can irritate or injure the nose or lungs. 

Some air purifiers, such as those with UV light or fans, produce ozone in small amounts. 

However, avoiding prolonged exposure to high ozone levels is essential, particularly for individuals with lung conditions.

So, it’s crucial to stay alert for any signs of ozone exposure.

The California Air Resources Board (CARB) has regulations limiting ozone emissions from indoor air cleaning devices; the ozone guidelines are here. 

Also Read: Winix Air Purifier Do They Emit Ozone?

Final Thoughts- Which Dyson Air Purifiers produce Ozone? 

To answer the question, does Dyson air purifiers have ozone? Dyson air purifiers don’t produce ozone, which is a harmful by-product that can cause respiratory issues. 

Instead, they use HEPA filtration systems and sensing technology to provide a clean and healthy environment. 

Air purifiers that emit ozone can be harmful, and identifying them requires looking for key characteristics such as onboard air ionizers or UV light technology. 

Mechanical HEPA filters and activated carbon filters are ozone-free options.

If you are worried about ozone in your home, you can do an air quality monitoring test yourself.

Here is the perfect solution for monitoring your home’s air quality with the DRNKS Portable Indoor Air Quality Monitor Ozone Detector

This reliable and user-friendly device will help you keep track of ozone levels and ensure a healthy living environment for you and your loved ones.

In conclusion, Dyson air purifiers are a safe and effective solution for those seeking cleaner air.

Below you will find all the Dyson models that do not produce ozone:

ModelEmits OzoneMax.Effective AreaCoolingHeatingOscillationSensorsFilter TypeWiFi
Dyson Pure Cool Me – BP01No120 sq. ft.YesNoYesNoHEPANo
Dyson Pure Cool LinkNo120 sq. ft.YesNoNoYesHEPAYes
Dyson Pure Hot + Cool HP01No250 sq. ft.YesYesNoNoHEPANo
Dyson Pure Hot + Cool HP04No250 sq. ft.YesYesNoYesHEPAYes
Dyson Pure Cool TP01No250 sq. ft.YesNoNoNoHEPAYes
Pure Cool TP02No250 sq. ft.YesNoNoNoHEPAYes
Pure Cool TP04No250 sq. ft.YesNoNoNoHEPAYes
Pure Cool – DP04No120 sq. ft.YesNoYesYesHEPANo
Dyson Purifier Hot+Cool HP07No376 sq. ft.YesYesYesYesHEPAYes

Also Read: what’s the difference between Dyson tp01 and tp02

Is The Dyson Air Purifier Ozone Free? FAQ

Which Dyson Air Purifiers produce Ozone? 
  1. Are There Any Certifications that Indicate the Dyson Air Purifier Is Ozone-Free?

    Yes, the Dyson Air Purifier has a certification that indicates it is ozone-free. 
    This certification is the UL 2998 standard, an Environmental Claim Validation Procedure (ECVP) specifically for Zero Ozone Emissions from Air Cleaners. 
    Dyson purifiers achieve this by not using ionization to purify the air, and as a result, they do not generate ozone. (1.)(2.)

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    Do All Air Purifiers Emit Ozone?

    Not all air purifiers emit ozone. HEPA, activated carbon, TiO2, pre-filter purifiers, and those with 256nm UV bulbs do not emit ozone. 
    Ozone generators, ionizers, and 185nm UV-bulb purifiers emit ozone. Ozone can cause health issues, so choosing an ozone-free air purifier is best. 
    Dyson True HEPA Air Purifier or activated carbon filter models are good options.

  3. How Do I Know If My Air Purifier Emits Ozone?

    To tell if your air purifier emits ozone, check for a distinctive antiseptic or bleach smell, or look for an ionizer or blue UV light. 
    Most modern air purifiers do not have ozone generators, but it's essential to check the product's documentation or contact the manufacturer directly to confirm. 
    Consider purchasing an ozone-free air purifier for a safer option.

  4. What is the safe level of ozone from air purifiers?

    The safe level of ozone from air purifiers is 0.05 parts per million, the limit set by the FDA and the federal government. 
    However, it is essential to note that no ozone level is entirely safe as it can be a lung irritant. HEPA air purifiers are recommended as they effectively remove particles without producing ozone. (1.)

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irene mills author of freshairdevices


Irene Batres is eager to help others create an indoor allergen-free home. She has years of experience testing out air purifiers, dehumidifiers, and other products designed to help with indoor air quality. Learn more about me.