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Air purifiers have become an integral part of our households. Choosing one, however, can be a conundrum considering the number of options available.
The only thing that is certain is that you should opt for an ozone-free purifier.
While ozone is incredibly effective in neutralizing air pollutants, bacteria, viruses, and other biological contaminants, it’s also harmful to our lungs. According to EPA, ozone air cleaners can cause:
- chest pain and shortness of breath,
- throat irritation and cough,
- decrease in lung function,
- and aggravation of asthma.
I wouldn’t say it’s a fair price for cleaner air, then. The story is entirely different for ozone-free air purifiers.
An ozone-free purifier, like the true HEPA purifier, does a great job of meeting the highest air quality needs.
From my experience, such air purifiers are perfectly able to combat numerous allergens and odors, knocking them off the atmosphere or trapping and rendering them harmless. They can also deal with microbial and bacterial contaminations in the air due to the several filter layers to remove dirt from the air that flows through.
All that without exposing you to harmful ozone.
But you’re not here to talk about how great ozone-free purifiers are. You want to learn which one to pick for your home. My list should help you with that.
Below, I’ve gathered a list of air purifiers without ozone from different brand names. Having tested these units myself, I have to say that all of them were more than impressive. Which one is the best, though? Let’s find out.
Best Ozone Free Air Purifier: My Top 3 Picks
| Model | Pros | Key Features | Check Price |
| 1. Blue Pure 211+ – Best Overall | + particle and activated carbon filter
+ quiet operation + low energy consumption | – noise level at 32dB
– coverage area up to 540 sq ft – CADR: 350 | |
| 2. Alen Breathe Smart Flex – Best for Large Areas | + authentic HEPA filter
+ long-lasting filters + high CADR | – noise level at 39dB
– coverage area up to 700 sq ft – CADR: 250 | Buy on Amazon |
| 3. Honeywell True HEPA Allergen – Best for Medium Areas | + authentic HEPA filter
+ activated filter + high CADR | – noise level at 60dB
– coverage area up to 310 sq – CADR: 320 |
Other Notable Mentions
- Winix 5500-2 Air Purifier with True HEPA – Buy on Amazon
- Levoit LV-PUR131 with True HEPA – Buy on Amazon
- Medify MA-14 Medical Grade Filtration H13 HEPA – Buy on Amazon
The Best Ozone Free Air Purifiers – My Full Reviews
Let’s get straight to the chase. Here’s my list of what I believe are the best six ozone-free air purifiers currently available.
I tried to make this list as diverse as possible so that you can find the best purifier for your specific needs. However, having tested them all, I can assure you that each pick is bound to exceed your expectations.
Reviewed below is the comprehensive list of the best HEPA air purifier without ozone.
1) Blue Pure 211+ Air purifier
Special features: 3 stage purification, two washable pre-filters, energy star rated, AHAM certified, item weight; 13 pounds,
The looks of this air purifier can be captured in one word, which is the famous saying, “simplicity is the most sophisticated complexity.” Indeed it is pertaining to this device, being primarily of two colors only, it looks like a beautiful piece of furniture and is sure to bring something extra to the home.
It is also a bit bulky in size, standing about 21 inches off the ground, but trust me, when it comes to performance, this unit is a beast in every regard. Being an energy star rated, be sure to get lesser cost on energy bills than expected.
Perfect for Medium to Large-Sized Rooms
The blue pure 211+ is designed to be able to serve medium to large-sized rooms of up to 540sqft in size, hence making it able to walk right into the rooms of most homes today.
And if you need more proof than just my word, this quality of it has been independently tested by the AHAM (Association of home appliance manufacturers), hence making the product AHAM certified, which speaks volumes of its quality.
It also boasts of a very impressive CADR (clean air delivery rate), and from the test results carried out by AHAM, it can recycle the air in its 540sqft room about 5 times in an hour. For more precise measurements, its clean air delivery rate is about 350 cubic feet/ minute.
Quiet Yet Efficient
The first thing I noticed when I turned the Blue Pure on was how quiet it was. It is barely noticeable while on the lowest setting. And while it becomes more audible as the fan speed increases, it’s still relatively quiet compared to many other similar units.
Don’t let its quiet operation deceive you, though. This air purifier cleans the air very efficiently, and it is primarily due to the presence of a 3 stage filtration. The first is the pre-filter stage, which handles large particles in the air coming in before it is forced through a particle and activated carbon filter, which deals with 99% of allergens, as well as odor-causing gases and VOCs.
Key Features
| Filter Type | HEPA |
| Recommended Room Size | 540 sq ft |
| Clear Air Delivery Rate (CADR) | 350 cfm |
| Noise Level | 31 – 56 dB |
| Energy Consumption | 30 – 61 W/h |
Pros and Cons
| Pros | Cons |
| + particle and activated carbon filter,
+ suitable for medium to large-sized rooms, + quiet operation, + low energy consumption, + high CADR rating, + 1-year warranty, and 2 when product is registered with blue air | – it is expensive |
My Final Verdict
I have been using this filter in my home for several years now, and it is yet to let me down. It’s quiet and efficient, and I really like its minimalistic design (it also comes in different colors). Sure, its price may look a bit off-putting, but, in my opinion, it’s worth every single penny.
My Rating: 5/5
2) Alen Breathe Smart Flex Air Purifier
Special features: sleep mode, true HEPA filter, two-stage purification, item weight, 15 pounds.
The first thing that caught my eye was how uniquely this air purifier looks. It’s basically a piece of furniture that is to be placed in a visible area to beautify the home while doubling an air purifier.
It is quite bulky, true, but with its well-polished surface and all the smoothness aby one would want, it will suit any house perfectly. But let’s talk performance.
Ideal for Large-Size Areas
This Alen unit thrives when placed in a large-size area. It can serve rooms of up to 700 sq ft, which is more than impressive in my opinion. As for its CADR, this product actually does well.
It has 187 cubic feet per minute airflow, which allows it to recycle the air about two times an hour in a 700sqft room. And while I haven’t used it for that long, most reviewers claim that its filters last really long, requiring a change once a year.
Impressive Performance
It is amongst the best devices based on the raw performance I have ever used. It comes with (almost) all the top features you may require from an air purifier.
It contains a True HEPA filter, designed to remove up to 99.97% of allergens, pollutants, and other confirmations as small as the size of a virus. With this filter working well, you are guaranteed air cleaned from all these contaminations, but you might, however, find it challenging to deal with odor-causing pollutants and gases due to the lack of an activated carbon filter.
What I also like is that this product is designed with much user convenience at heart, especially in the area of noise generation. Its acute ability to work without constituting nuisance in the lowest setting is awe-inspiring, however, it is louder on the highest setting, but not without a fix.
Key Features
| Filter Type | HEPA |
| Recommended Room Size | 700 sq ft |
| Clear Air Delivery Rate (CADR) | 225 cfm |
| Noise Level | 25 – 50 dB |
| Energy Consumption | 8 – 50 W/h |
Pros and Cons
| Pros | Cons |
| + suitable for large-sized rooms,
+ true HEPA filter, + high CADR, + quiet operations, + long-lasting filters | – it is expensive
– lack of carbon filter |
My Final Verdict
If you’re looking for the best ozone-free air purifier for larger rooms, you can’t go wrong with this unit. I found it extremely efficient and convenient, although I have to admit I treat the lack of a carbon filter as a significant downside. Nevertheless, while expensive, it’s a great purifier to get. It’s quiet, efficient, and looks great. What more do you need?
My Rating: 5/5
3) Honeywell True HEPA Allergen Air Purifier
Special features: product dimensions; 20.08 x 10.83 x 22.32 inches, item weight; 21 pounds
Deep from the design architecture of famous Honeywell air purifiers comes the Honeywell HPA300. Coming in 3 different sizes, which include the model for medium, large, and extra-large rooms, this device also comes with an option for a Bluetooth model, which costs a few extra bucks compared to the ordinary ones.
For the purpose of this review, I tested the extra-large room-size model, built for huge rooms of up to 465sqft.
True HEPA Filter
It purifies air through the use of a true HEPA filter, which does a really excellent job in removing allergens and contaminants as small as 0.3 microns. This filter also has a pretty impressive lifespan, needing to be changed only at the end of every year. Before passing through the HEPA filter, a pre-filter exists just at the entrance duct of the device to remove large-sized particles that could shorten the life span of the HEPA filter.
I also like the inclusion of an activated carbon filter. It’s able to deal with odor problems also, and not just contaminants, and like the HEPA filter, it lasts long and only needs to be replaced at the end of every year (although I didn’t use it for that long).
High CADR and Efficient Performance
As per its clean air delivery rate (CADR) rating, the unit also boasts an impressive one, being able to recycle air in a recommenced 465sqft room, precisely 320 per cubic feet per minute, and therefore up to two times per hour.
These are impressive stats, but they come at a cost. It’s a loud unit, especially at higher settings, which I personally found quite annoying. The pure performance is there, though, and if you need to purify your room fast, this Honeywell purifier will serve its purpose really well.
Key Features
| Filter Type | HEPA |
| Recommended Room Size | 465 ft sq |
| Clear Air Delivery Rate (CADR) | 320 cfm |
| Noise Level | 48 – 71 dB |
| Energy Consumption | 42 – 131 W/h |
Pros and Cons
| Pros | Cons |
| + suitable for large-sized rooms
+ true HEPA filter + high CADR (320) + activated carbon + pre-filter | – high energy consumption (even up to 131 W on high settings)
– noisy even at lower settings |
My Final Verdict
Although efficient, the Honeywell HPA300 isn’t the best option if you value convenience and energy efficiency. It is loud and consumes a lot of energy compared to several other units on this list. However, if you want to purify your room fast, there aren’t many better options around at this price range. It also comes with a very impressive 5-year limited warranty, which alone speaks volumes of the trust manufacturers have in it.
My Rating: 4.5/5
Cons
4) Winix 5500-2 Air Purifier with True HEPA
Special features: True HEPA filter, sleep mode, 3 stage filtration, AHAM certified, energy star rated, item weight 15.4 pounds,
Winix is also one of the household names when it comes to designing and manufacturing top-quality products as air purifiers in the world today. The 5500-2 is no exception, featuring a smart look and a pretty bulky size, which one would have to create room for in the home.
Its performance is, however, impressive, and from firsthand experience, I can say it is worth the price. It comes with several indicators at the control section for creating a better user experience and ease.
Convenient 3-Stage Filtration System
I’m a massive fan of Winix’s 3-stage filtration system, which is responsible for cleaning contaminants in the air that passes through. With a true HEPA filter, this air purifier is sure to hold back contaminants as small as 0.3 microns while still having a washable carbon filter to match.
Its carbon filter is responsible for dealing with volatile organic compounds and other odors in the atmosphere, and it does an impressive job here as well.
Before these stages of filtration, there is a pre-filter that stands to remove large particles like pet dander from the air.