Amparo is a staff writer for HouseFresh, having joined us in 2023. She is a sustainability advocate, holding degrees in communications, human-centered design and environmental policy. Her work has a focus on air pollution and climate change.
Our verdict:
- Levoit EverestAir is my top pick. It combines speed, smart features and comprehensive protection.
- Levoit Core 300 is my budget-friendly option. It offers outstanding performance at a price point that’s hard to beat.
- Levoite Core 600S is the best ozone free air purifier for large spaces. It is affordable and among the fastest units we’ve tested.
Ozone is a highly reactive gas that can change the chemical makeup of air pollutants when the two come into contact. This gives it the power to neutralize pollutants and kill viruses, bacteria, mold and other biological contaminants.
However, according to the EPA, inhaling ozone, even in relatively low quantities, can cause
⚠️ Chest pain
⚠️ Coughing
⚠️ Shortness of breath
⚠️ Throat irritation.
The ozone generated by some air purifiers is less of an issue than it was 10-15 years ago. Regulations now limit the amount of ozone purifiers can emit, such as the California Air Resource Board [CARB] limiting any unit sold in California to 50 ppb (parts per billion) of ozone.
You should still be aware that ozone is a risk with some filtration technologies. HEPA and Activated Charcoal filters create no byproducts, so they are 100% safe. But don’t buy an ozone generator — they can only be used in empty rooms and should not be used as an air purifier.
To help you find the perfect ozone-free air purifier for your home, I have collated eight excellent mechanical-based units without ionizing or active filtration technologies.
| Why You Can Trust Our Recommendations As part of our buying guides here at HouseFresh, we dive deep into the performance of every air purifier we recommend by using our own measuring equipment to test each unit. We aim to help you cut through the marketing hype and find the right air purifier for your home. If a unit is no good, we will tell you. We have no ties with manufacturers and air quality brands. This is our testing process: 1️⃣ We create particulate pollutants by filling the air with thick incense smoke. We turn on the air purifier at its highest fan speed and use our PurpleAir Touch Indoor Air Quality Monitor to record how long it takes for PM1ug/m3, PM2.5ug/m3 and PM10ug/m3 particles to be cleaned from the air. 2️⃣ We plug the air purifier through an electricity usage monitor and track energy consumption when running the unit across the different fan speed levels. 3️⃣ We use a sound level monitor to measure noise levels when running the air purifier at its lowest and highest speeds. |
Using all this information, we can compare air purifiers directly and choose the best ones. These options will remove common indoor air pollutants from your home while avoiding the release of chemical byproducts like ozone into the air.
To ensure our selection is up to the task, we’ve meticulously considered these four key factors:
✅ CADR (Clean Air Delivery Rate) – This tells you how much air an air purifier can clean per minute, giving you an idea of its efficiency. If the CADR is low, the purifier must work harder to clean the same air volume.
✅ Type of Filtration – Our recommendations all feature HEPA filters, which capture particles as small as 0.3 microns with 99.97% efficiency. However, HEPA filters aren’t as effective against gases, VOCs, or ozone, as activated carbon filters are. That’s why we also include options with different types of filtrations for addressing specific air quality concerns.
✅ Powerful Fans – An air purifier needs strong fans to effectively circulate and clean the air in a room, regardless of how good the filters are.
The Top 3 Ozone-Free Air Purifiers
These are my top picks for the three main use cases we usually get emails about: the best option overall, the best option that won’t break the bank and the best option for large rooms or open-plan spaces.
| 👑 BEST OVERALL | 💰 FOR TIGHT BUDGETS | 🛋️ FOR LARGE SPACES | |
|---|---|---|---|
| Levoit EverestAir | Levoit Core 300S | Levoit Core 600S | |
 |  |  | |
| AIR CLEANING SPEED ⚡ | 13 minutes | 39 minutes | 15 minutes |
| CADR 👩🔬 | 360 CFM (612 m³/h) | 141 CFM (240 m³/h) | 410 CFM (697 m³/h) |
| FILTER TECHNOLOGY 💨 | 3-Stage Filtration (Pre-filter, H13 HEPA and activated carbon) | 3-Stage Filtration (Pre-filter, H13 HEPA and activated carbon) | 3-Stage Filtration (Pre-filter, H13 HEPA and activated carbon) |
| MAX ROOM SIZE 📏 | up to 558 sq. ft. | up to 219 sq. ft. | up to 1,300 sq. ft. |
| WEIGHT ⚖️ | 20.7 lbs (9.38 kg) | 5.95 lbs (2.7 kg) | 27 lbs (12.2 kg) |
| OUR REVIEW 🔍 | EverestAir review | Levoit Core 300S review | Alen 75i review |
| PRICE 💵 | $499.99 | $149.99 | $299.99 |
Last update on 2023-09-21 / Affiliate links / Images from Amazon Product Advertising API
Whether you’re looking for a purifier to remove gasses and odors, airborne particles, or an all-rounder that will target both, I made sure that there is an ozone-free purifier for everyone on this list. Read on.
1. Best Ozone-Free Air Purifier: Levoit EverestAir
The recently launched EverestAir by Levoit stands out as a high-performance addition to their lineup. With its impressive CADR of 360 CFM, this powerful yet stylish unit is the fastest air purifier we have tested, capable of refreshing the air in a room of up to 558 sq. ft in just 13 minutes. Despite its considerable power, this air purifier remains compact, setting it apart from other models with similar CADR ratings.
Incorporating Levoit’s awesome 3-stage filtration system, the EverestAir features a washable pre-filter mesh, an H13 True HEPA filter designed to capture airborne particles and a well-packed Activated Carbon filter to remove VOCs, odors and ozone from the air.
While maintaining the excellent performance that the Levoit Core series is known for, the EverestAir goes the extra mile with a user-friendly control panel, upgraded smart features and a sleek design that stands out.
In contrast to the air quality indicator rings found in the Levoit Core series, the EverestAir’s panel directly displays readings for PM1.0, PM2.5, or PM10 on the screen. Plus, the handy VeSync app lets you easily tweak settings, adjust the vent angle and set schedules even when you’re not home.
What We Really Like:
👍 Built-in improved version of Levoit’s AirSight Plus laser dust sensor
👍 Adjustable vent angles let you control the fresh air direction
👍 Noise levels as low as 24dB at lower fan speeds, virtually no sound
👍 Can be connected to Amazon Alexa or Google Assistant through the VeSync app
What We Think Could Be Better:
👎 Filters are not cheap, $99.99 each
SPECS & FEATURES
| HouseFresh Rating: | ★★★★★ |
| Time to clean our test room: | 13 minutes |
| Air purifier technology: | 3-Stage Filtration (Pre-filter, H13 HEPA and activated carbon) |
| Recommended room size: | 558 sq. ft. |
| Clean air delivery rate (CADR): | 360 CFM (612 m3/h) |
| Dimensions (in inches / in cm): | 18.9L x 8.5W x 23.2H inches (48L x 21.6W x 58.9H cm) |
| Weight (in pounds / in kg): | 20.7 lbs (9.38 kg) |
| Noise level (low – high): | 24 – 56dB |
| Filter life: | 12-15 months |
| Manufacturer’s warranty: | 2 years |
| Estimated energy consumption: | $87.25 per year |
2. Best Budget Option: Levoit Core 300S
The Levoit Core 300S is a small but mighty machine offering excellent purifying power for a great price. Equipped with a H13 HEPA filter, a pre-filter and an Activated Carbon filter, this unit comes with high-spec tech that will transform the air in small to medium-sized rooms, making the 300S our top pick for those on a budget.
As well as a reasonable initial purchase price, this unit is the cheapest to run in the long-term out of our top eight recommendations. Even if left to run on full power, 24 hours a day, seven days a week, this unit would only set you back $30.85 annually.
When considering filter replacements, the 300S offers good value for money, with Levoit genuine replacements costing less than $30 and generic filters on Amazon for as little as $19.99.
You’ve probably guessed by now we’re big fans of the Levoit Core range. Levoit has created a range of high-performance, ozone-free purifiers for a wallet-friendly price tag. And the 300S is undoubtedly no exception. It comes with all the smart features and patented tech that its bigger brothers do, with the only difference being a smaller room size suitability.
What We Really Like:
👍 Great value for money
👍 Comes with a host of features not usually found at this price range
👍 Cheap replacement filters
👍 Meager running costs
What We Think Could Be Better:
👎 Filters not always available online
SPECS & FEATURES
| HouseFresh Rating: | ★★★★★ |
| Time to clean our test room: | 39 minutes |
| Air purifier technology: | 3-Stage H13 True HEPA Filtration with Activated Carbon |
| Recommended room size: | Up to 219 sq. ft. |
| Clean air delivery rate (CADR): | 141 CFM (240 m³) |
| Dimensions (in inches / in cm): | 8.7L x 8.7W x 14.2H inches (22L x 22W x 36H cm) |
| Weight (in pounds / in kg): | 5.95 lbs (2.7 kg) |
| Noise level (low – high): | 24 – 48dB |
| Filter life: | 6 – 8 months |
| Manufacturer’s warranty: | 2 years |
| Estimated energy consumption: | $52.56 per year |
3. Best Budget Option for Large Spaces: Levoit Core 600S
The 600S is one of the flagship models from Levoit’s Core range, aimed for use in larger rooms or open-plan spaces while remaining affordable. It has a 3-stage filtration system, with a mesh pre-filter and H13 HEPA to tackle airborne particles and an Activated Carbon filter to remove VOCs and odor pollutants.
This purifier comes with an excellent CADR rating of 410, primarily thanks to Levoit’s trademark VortexAir technology which will help to improve your indoor air circulation dramatically, changing the air in a 635 sq. ft room five times per hour.
This super smart unit has an Auto mode to scan its surrounding environment for airborne pollutants and adjust the fan speed accordingly. Still, it also allows you to remotely operate the unit through the Levoit app or even be connected to Alexa or Google Assistant to utilize voice control.
Plus, you can keep an eye on pollutant levels and the health of your filters either on the app or through the unit’s inbuilt display.
What We Really Like:
👍 User-friendly app with useful data feedback
👍 Excellent 360-degree fan technology allows for more air changes per hour
👍 Sleep mode runs at a whisper like 26 dB
👍 Excellent value for money
What We Think Could Be Better:
👎 Filters could be larger and last longer
👎 Design is fairly mundane
SPECS & FEATURES
| HouseFresh Rating: | ★★★★★ |
| Time to clean our test room: | 15 minutes |
| Air purifier technology: | H13 True HEPA filter with Activated Carbon |
| Recommended room size: | 635 sq. ft. |
| Clean air delivery rate (CADR): | 410 CFM (697 m³/h) |
| Dimensions (in inches / in cm): | 12.3 x 12.3 x 23.6 inches (31.3 x 31.3 x 60 cm) |
| Weight (in pounds / in kg): | 13.7 lbs (6.2 kg) |
| Noise level (low – high): | 26 – 55 dB |
| Filter life: | 6 months |
| Manufacturer’s warranty: | 2 years |
| Estimated energy consumption: | $51.51 per year |
4. Best for VOCs: Blast Mini by Smart Air
If you’re looking for an air purifier with impressive purifying performance and long-lasting results while costing a fair price, the Blast Mini from Smart Air certainly ticks all the boxes. With a H13 HEPA filter and powerful fan, this purifier can transform the air in large spaces up to 915 sq. ft, with a clean air delivery rating of 435 CFM.
The Blast Mini offers unrivaled performance, putting its impressive stats into practice during our real-world tests. This unit eclipsed all other purifiers we have previously tested, completely clearing our medium-sized bedroom of pollutants in just 17 minutes.
Alongside the H13 HEPA filter, the unit utilizes an easy-to-clean, plastic pre-filter, and you can opt for an additional Activated Carbon filter to tackle VOCs and odors. The filters boast an impressive lifespan of up to two years, meaning less expenditure and less hassle changing and discarding old filters.
What We Really Like:
👍 Super powerful fan allows 1400 m3/hr air intake
👍 Long lasting, quality HEPA filters
👍 Wipe clean pre-filter is effective and easy to maintain
👍 Castor wheels make it easy to move from room to room
What We Think Could Be Better:
👎 High power comes with high running costs
👎 By far the heaviest unit on our list (despite being called ‘mini’)
SPECS & FEATURES
| HouseFresh Rating: | ★★★★☆ |
| Time to clean our test room: | 17 minutes |
| Air purifier technology: | H13 HEPA Filter |
| Recommended room size: | 915 sq. ft. |
| Clean air delivery rate (CADR): | 435 CFM (740 m³/h) |
| Dimensions (in inches / in cm): | 22.6L x 13W x 24.8H inches (57.5L × 33W × 63H cm) |
| Weight (in pounds / in kg): | 59 lbs (26.8 kg) |
| Noise level (low – high): | 36 – 49 dB |
| Filter life: | 33 months |
| Manufacturer’s warranty: | 1 year |
| Estimated energy consumption: | $277.70 per year |
5. Best for Large Spaces: IQAir Healthpro Plus
For those looking for the best air purifier money can buy, look no further than the IQAir Healthpro Plus. With almost 60 years of air cleaning expertise, IQAir has built a state-of-the-art purifier, utilizing their advanced HyperHEPA and V5-Cell filters, that can eradicate 99.5% particles as small as 0.003 microns, along with a host of VOCs and odor pollutants to boot.
When it comes to ozone and the technology causing it, IQAir takes a firm stance. They often highlight the danger it can pose to our health and oppose using ionizers and other active technologies, questioning the long-term benefits they offer.
So much so they even disassociate themselves from the industry-standard CADR ratings, partly because ozone-emitting purifiers often score highly, despite the dangers they pose.
This purist approach is perhaps what we should expect from the godfathers of air purification. With their highly advanced filters (that last for years) and powerful fan performance that allows this unit to transform the air within a large space of up to 1125 sq. ft., this is undoubtedly the crème de la crème of air purifiers for those with a big budget.
What We Really Like:
👍 HyperHEPA filters are capable of capturing 99.5% of ultrafine particles
👍 Advanced VOC busting filters, loaded with 5lb of activated carbon
👍 Certificate of performance from the production team in Switzerland
👍 10-year warranty
What We Think Could Be Better:
👎 Not the best-looking unit on the market
👎 Expensive to buy and operate on high-speed settings
SPECS & FEATURES
| HouseFresh Rating: | ★★★★☆ |
| Time to clean our test room: | 25 minutes |
| Air purifier technology: | HyperHEPA and V50-CELL gas and odor filter |
| Recommended room size: | 450 to 1125 sq. ft. |
| Clean air delivery rate (CADR): | 300 CFM (510 m³/h) |
| Dimensions (in inches / in cm): | 28H x 18W x 16D inches (71H x 38W x 41D cm) |
| Weight (in pounds / in kg): | 35 lbs (16 kg) |
| Noise level (low – high): | 25dB – 69dB |
| Filter life: | 4 years |
| Manufacturer’s warranty: | 10 years |
| Estimated energy consumption: | $165.04 per year |
6. Honeywell HPA300
The Honeywell HPA300 is an air purifier’s robust, no-thrills workhorse. Boasting an impressive clean air delivery rate of 300 CFM, this purifier will make light work of airborne pollutants such as pollen, dust, or pet dander. Its pre-filter with a combined layer of activated charcoal will also tackle larger particles and odors.
While the HPA300 may look somewhat dated, remember never to judge a book by its cover. This unit packs an almighty punch, especially considering its cost. During our real-world tests, it cleared the room of all harmful PM2.5 particles emitted from burning incense within 26 minutes, showing it’s more than capable of cutting it with the top-end, fancier units.
With four speed settings, you can ramp up power to tackle prominent pollutants or leave it on a low speed to run in the background, providing round-the-clock, ozone-free purification.
Despite its more basic functionality, you can still set a timer for either 2, 4, or 8 hours, dim the lights for nighttime use and receive a notification when it’s time to change the filter.
What We Really Like:
👍 Powerful performance makes up for lack of fancy features
👍 Fairly small in size making the unit easily maneuverable
👍 Reasonably priced and easy to obtain replacement filters
👍 Simple to set up and operate
What We Think Could Be Better:
👎 Increasing the amount of activated carbon would improve performance against VOCs
👎 A modernized design might suit more homes
SPECS & FEATURES
| HouseFresh Rating: | ★★★☆☆ |
| Time to clean our test room: | 26 minutes |
| Air purifier technology: | Activated Carbon pre-filter and True HEPA filter |
| Recommended room size: | 465 sq. ft. |
| Clean air delivery rate (CADR): | 300 CFM |
| Dimensions (in inches / in cm): | 20.8L x 10.83W x 22.38H inches (52.8L x 27.5W x 56.8H cm) |
| Weight (in pounds / in kg): | 17 lbs (7.7 kg) |
| Noise level (low – high): | 48.3dB – 71.2dB |
| Filter life: | HEPA every 12 months, Pre-filters every 3 months |
| Manufacturer’s warranty: | 5 years |
| Estimated energy consumption: | $189.01 per year |
7. Smart Air S Air
The Smart Air Sqair is an excellent option for design-savvy homeowners looking for a practical and efficient way to improve indoor air quality. With a trusty H12 HEPA filter to tackle airborne pollutants such as dust and pet dander, plus an optional Activated Carbon filter for VOCs and odors, this purifier will reinvigorate your air without breaking the bank.
Following on from Smart Air’s humble beginnings of creating a DIY-esq, affordable fan and filter combination, the Smart Air Squair offers a simple and cost-effective air purifying solution that works excellently in medium-sized spaces between 150 ft² to 430 ft².
This unit also gets top marks for design, thanks to its compact and contemporary aesthetic. As a small cube measuring less than 15 inches in height, width and depth, it will sit comfortably in any modern home, while its angled wooden legs bring a new dimension, elevating the unit itself and its appearance.
What We Really Like:
👍 Compact and lightweight making it easy to maneuver
👍 Cheap filter replacements and low energy use make it cheap in the long run too
👍 Cute design
👍 Super quiet on lowest fan speed
What We Think Could Be Better:
👎 No smart features such as air quality sensor or auto mode
👎 Without a timer you must remember to turn on/off your unit
SPECS & FEATURES
| HouseFresh Rating: | ★★★★☆ |
| Time to clean our test room: | 29 minutes |
| Air purifier technology: | H11 HEPA and optional activated charcoal filter |
| Recommended room size: | 430 sq. ft. |
| Clean air delivery rate (CADR): | 185 CFM (315 m³/h) |
| Dimensions (in inches / in cm): | 13H x 13W x 14.3D inches (33.02H x 33.02W x 36.32D cm) |
| Weight (in pounds / in kg): | 10.1 lbs (4.58 kg) |
| Noise level (low – high): | 23dB – 52dB |
| Filter life: | 6 months |
| Manufacturer’s warranty: | 1 year |
| Estimated energy consumption: | $45.20 per year |
8. Levoit Core 400S
The 400S is the mid-market unit from Levoit’s Core range, offering excellent purifying performance for a very reasonable price. Whether you’re affected by nuisance odors, harmful VOC gasses, or everyday airborne particles, thanks to the Core 400S’s 3-stage H13 HEPA, pre-filter, and Activated Carbon filtration, you can breathe easy in the knowledge it will remove 99.9% of airborne particles 0.1 microns in size.
With impressive statistics on paper, we were pleased to find the Core 400S’s performance measured up in the real world. Clearing all pollutants from our test bedroom in just 33 minutes. The top-end IQAir Healthpro Plus managed the same test only eight minutes quicker, while the smaller Levoit Core 300S took 16 minutes longer.
The Core 400S comes with a range of smart features rarely found on a unit within this price range. With inbuilt air quality sensors and an app providing real-time feedback on the air in your home, you can keep track of pollutants and act quickly to remove any harmful particles. While the capacitive controls are super intuitive to understand and add a nice design flourish to the unit.
What We Really Like:
👍 Excellent performance for the price
👍 Smart features provide real-time feedback
👍 Easy to set up and use
👍 Energy efficient, resulting in lower bills
What We Think Could Be Better:
👎 Larger rooms will be better suited with the bigger Levoit Core 600S
👎 Replacement filters aren’t always easy to find
SPECS & FEATURES
| HouseFresh Rating: | ★★★★☆ |
| Time to clean our test room: | 33 minutes |
| Air purifier technology: | H13 True HEPA filter |
| Recommended room size: | 403 sq. ft. |
| Clean air delivery rate (CADR): | 260 CFM (442 m³/h) |
| Dimensions (in inches / in cm): | 10.8L x 10.8W x 20.5H inches (27.4L x 27.4W x 52H cm) |
| Weight (in pounds / in kg): | 14.1 lbs (6.4 kg) |
| Noise level (low – high): | 24dB – 52dB |
| Filter life: | 6 months |
| Manufacturer’s warranty: | 2 years |
| Estimated energy consumption: | $39.95 per year |
What to Look for When Buying an Ozone-Free Air Purifier
Not all air purifiers are inexpensive. Even the budget-friendly options usually need you to spend some money upfront. To help you choose the right one for your home, there are a few things to check in an ozone-free air purifier.
1. Type of Filters [HEPA + Activated Carbon]
For the best performance, HEPA (high-efficiency particulate air) filters are considered the gold standard in the industry. These filters are certified by the U.S. Department of Energy to remove 99.97% of particles and allergens as small as 0.3 microns.
HEPA particles can remove large particles, too, including smoke, pollen and mold spores suspended in the air. HEPA filters don’t help much with gas and VOCs and alone can’t remove ozone. However, unlike ionization filtration, HEPA technology does not release any chemical byproducts into the air. Go for H13 HEPA, H12 or H11, as these fit the sweet spot of particle removal and air flow rate.
Activated carbon filters, on the other hand, are very effective at ozone removal and other gasses and VOCs. Regarding activated carbon filters, the more carbon in the filter, the better. Choose an air purifier with HEPA and activated carbon filters for best results.
2. Clean Air Delivery Rating (CADR)
This is another critical factor besides the device’s filtration system. CADR, or clean air delivery rating, measures how quickly an air purifier can cycle the air in a given space through its per-hour filters.
By checking an air purifier’s CADR rating, you can tell how effectively the unit filters pollutants in a given room size. The higher the CADR rating, the more effective a device is in purifying air in a given room. For example, a unit with a 250 CADR rating produces 250 cubic feet of fresh air per minute to remove contaminants in that room.
3. Room Coverage
Another essential factor to consider when buying an air purifier is the device’s coverage range. Air purifiers aren’t created equal. Some units are best suited for classrooms and larger spaces, while others are good for household use.
As such, it’s essential to pick a product designed to purify the air in the space in which it will be used. Luckily, all air cleaners list their maximum square footage rating on their packaging.
4. Noise Level
You may want a quieter device depending on where you’ll be using your air purifier. Some air purifiers produce over 80 dB of noise while operating at full speed. Others are ultra-quiet and produce less than 60 dB at maximum speed.
If you want an ozone-free air purifier for your home, choose an option that doesn’t exceed 60 decibels. Such devices will not disrupt your sleep at night.
5. Smart Features
Last but not least, consider a device with smart features. Smart air purifiers have a programmable timer, quality monitoring and Wi-Fi connectivity. For instance, a unit with an air quality sensor automatically adjusts the fan speed after detecting a room’s air quality change.
If the device has a programmable timer, it will automatically turn itself on and off during specific times of the day, which can help ensure optimal energy consumption.
Common Questions About Ozone-Free Air Purifiers
🤔 Why should you deal with ozone sooner rather than later?
While ozone is incredibly effective at neutralizing air pollutants, like viruses, bacteria, and other contaminants, it also harms our lungs. According to the Environmental Protection Agency (EPA), inhaling ozone, even in relatively low amounts, can cause.
- Chest pain
- Throat irritation
- Shortness of breath
- Aggravation of asthma
🤔 What air purifiers don’t emit ozone?
As mentioned, devices with mechanical filters, like HEPA and activated carbon, don’t produce chemical byproducts. Air purifiers from these brands generally don’t emit ozone.
Air purifiers from Levoit, Smart Air, Dyson, IQAir and Honeywell only use mechanical filters and hence have zero byproducts, including ozone.
🤔 Do Blueair air purifiers produce ozone?
Blueair says their air cleaners are CARB certified, meaning they are safe and don’t exceed ozone emission limits. In our tests, we didn’t see any ozone production.
However, Smart Air detected significant ozone levels when the detector was next to the ionizer. Adding an ionizer is a great way to increase a unit’s CADR, which is what Blueair has done with its air purifiers. However, this also leads to the release of chemical byproducts.
🤔 What is the safest type of air purifier?
The safest air purifiers use mechanical filters like HEPA and activated carbon, which don’t release chemical byproducts.
🤔 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.
🤔 Are all ionizers dangerous?
Not at all. Many of the ionizers used by companies like Blueair, Coway and others just use mild ionizing functions to improve the air-cleaning performance of the HEPA filter.
We have tested these units with ozone detections and have not seen any ozone detectable.
But we still know that some people have sensitivities to ionization, so we created this list of units that we can say 100% have 0 ozone created.
🤔 Do UV lights create ozone?
Demand for UV lights has recently risen as we look for effective ways to disinfect the air and surfaces around us. As some air purifiers come with inbuilt UV lamps, this may seem like an excellent way to kill bacteria or viruses in your home.
However, we typically find ultraviolet wavelengths of 185 nm are used in sanitizing and sterilizing systems, which are harmful to humans as this wavelength will emit high ozone concentrations. If the lamp is correctly coated or housed in certain glass, this should protect the user.
Although there have been instances of ozone leaking from the lamps and creating a toxic atmosphere if used in an enclosed space, we recommend avoiding UV purification.
🤔 Can an ionizer make you sick?
Ionizers work by electrostatically charging airborne pollutants within your space. Once charged, the particles become easier to remove with your air purifier. However, during this process, they also release ozone as a byproduct.
While this can be trace amounts (depending on your purifier), inhaling ozone concentrations can cause respiratory issues and throat irritation. It’s best to research any purifier before purchasing it to see if and how much ozone is emitted through its use.
We recommend avoiding ionizers entirely for those of you with asthma or other respiratory conditions.
Wrapping Up
Although many ozone-related air purifiers 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, numerous products are 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?
Last update on 2023-09-21 / Affiliate links / Images from Amazon Product Advertising API