Holds a Master’s degree in Engineering and is keen on her own home’s climate. Sometimes we think that Carolina owns every single product she writes about – that’s how profound and insightful her reviews always are.
For 8 years, Richard had been working as an HVAC specialist and AC unit installer since his student years. Now, he’s our main consultant on every technical aspect that may arise during our tests and research.
Last updated: March 26, 2021
If you’ve ever found it hard to breathe in your house because of poor air quality, it’s probably time you start planning on buying one of the best negative ion generators for your house to really improve the air quality.
Fortunately, we’ve done all the work for you and have found the top 5 choices among 27 different products available on the market. Starting with our TREKOO Air Purifier, this product simply is the best at providing you with fantastic air quality at an affordable price. It also has an energy-saving function and a motion detection system. On top of this, we’ll take a look at four other fantastic negative ionizers to help you find the best model for your needs.
In our review, there is a number of features we think are important when it comes to picking the right negative ionizer for you. The features we focus on include the contaminants it is recommended against, its coverage area, the different modes, its dimensions, and weight. After you read our product reviews, we’ll then turn to the buying guide portion. In this section, we’ll speak in more detail about the individual features that make the best negative ion generators. Finally, we’ll answer a few of the most commonly asked questions and then wrap things up with our final verdict – our top three picks. Let’s get started!
Top 5 Negative Ion Generators Review 2021
TREKOO Air Purifier – Editor's Choice
Recommended against: mold & bacteria, pet odor, smoke, cooking odor
Coverage area: 166 sq. ft.
Efficiency: up to 1 million negative ions/sec
Modes: auto, toilet, room, sleep
Dimensions: 6.9 x 6.9 x 2.2 in.
Weight: 1.7 lbs.
More features: dual voltage, no filter replacement required, ceramic ozone plate, motion sensor, quiet operation
If you’re looking for the best negative ion generator that does it all and has all the functions you should look for in one, look no further than our Editor’s Choice, the TREKOO Air Purifier. This negative ionizer combines affordability with high quality and is recommended against fighting off mold and bacteria, pet and cooking odors, and smoke.
The coverage area is a bit lacking here, especially when compared with the other negative ion generators on this list, but that’s only because this model is tailored specifically towards smaller rooms. At only 166 square feet, this TREKOO Air Purifier works especially well in offices, kitchens, or small living rooms. It’s fairly efficient in that it releases up to 1 million negative ions per second, and for a small room, this will get rid of many of the particulates. Additionally, it increases the percentage of oxygen that is in the air in the room where you put this in.
It has a few modes that you can play around with for optimal usage, including automatic, toilet, room, and sleep. It is very small and light in size as well, measuring out to just seven inches wide and seven inches tall and weighing under two pounds. Lastly, it also has a motion detector that helps to reduce your electricity usage by adjusting its settings automatically if there are no people in the room.
More features: pre-filter, True HEPA filter, cold catalyst and activate carbon filter, UV light, captures up to 99.97% of airborne particles, intuitive control panel
For those looking for something a bit more heavy-duty in terms of the coverage area and efficiency of negative ion distribution, you will be well-poised to find it in our Upgrade Pick, the Dreval D-903 Air Purifier.
As the name suggests, this negative ion generator is an air purifier that promises to be more durable and show better overall performance. It has multiple filtration stages, and it includes a HEPA filter, a pre-filter, a cold catalyst, an ionizer, and a carbon filter. All of these levels help to capture up to 99.97% of airborne particles, including dust, pollen, smoke, odor, mold spores, and pet dander. This negative ionizer works well for larger sized places, including those that are up to 320 square feet, which is great if you have a small to medium-sized apartment or condo. It’s incredibly efficient as well as it can release negative ions to ensure you have much healthier breathing air inside your place.
In terms of modes, it has a few different ones you can work with, including a timer, as well as sleep and sterilization modes. Since this negative ion generator works much faster and covers a larger space, the size of it is naturally much larger and comes out to 20 inches in height and weighs 11 pounds. A few people did note that it could become a bit of an eyesore, especially with the cord that sticks out from it.
What we liked:
Multiple filtration stages
Great coverage area
Plenty of modes
What could be better:
Bulkier and heavier in size than other models
Nature Bright SunTouch Plus – Best for Mood Enhancing
Recommended against: seasonal affective disorder
Coverage area: small working space
Efficiency: 4.5 x 10^14 negative ions/sec
Modes: timer with 15, 30, 45, and 60-minute intervals
Dimensions: 9 x 6 x 13 in.
Weight: 1 lbs.
More features: blue light is rated at 8000 Kelvin, and 10,000 Lux, light and fresh air therapy
The science has shown that the best negative ion generators have a positive influence over our mood and can even enhance it with the removal of particles in the air. That’s why our choice for Best Mood Enhancing Negative Ion Generator is the Nature Bright SunTouch Plus.
This negative ionizer uses light therapy to boost your physical and mental health with the help of negative ions to improve the air you breathe. Nature Bright says that their combination of light and negative ions has a physiological effect in that it helps to balance your biological clock, which will leave you feeling refreshed. It uses 18,000 Kelvin and 10,000 Lux lights to resemble the shade of blue of the sky and the warmth you can feel on a clear day. It works very effectively for smaller working spaces or rooms, and it shouldn’t be intended to provide light therapy for your entire place. This negative ionizer is recommended for those who suffer from the seasonal affective disorder and is particularly effective at enhancing people’s moods during the winter season.
This ionizer by Nature Bright is presented standing up in a very slim and compact design as it only measures to 13 inches tall and weighs 1 pound, making it easily transportable between different rooms in your house. It has a few different timer modes, at 15, 30, 45, and 60-minute intervals. While the vast majority of owners have great things to say about it, a few people did note that this lamp was too bright.
What we liked:
Light and air therapy to enhance mood
Helps you feel refreshed
Very slim and easily transportable
Offers different timer modes
What could be better:
Only limited to smaller spaces
Can be too bright for some
Wein Vortex VI-3500 Room Ionic Air Purifier – Most Efficient Negative Ion Generator
Recommended against: pollen, mold spores, dander, dust, mites, viruses, toxic chemical fumes, bacteria, odors, and second hand smoke
Coverage area: 800 sq. ft.
Efficiency: up to 3.4 trillion negative ions/sec
Dimensions: 9.3 x 8.9 x 3.7 in.
Weight: 1.5 lbs.
More features: active tracking, low energy consumption, noiseless, compact design
One of the most efficient negative ion generators the Wein Vortex VI-3500 Room Ionic Air Purifier. In terms of features, this ionizer really is much more effective than all of the other ones on our list and combines much more power and sophistication into its build. Which is no surprise because Wein has an incredible reputation as a leader in the air purification making industry.
This negative ionizer has the capability of releasing up to 3.4 trillion negative ions per second into the air. This, far and away, exceeds any other negative ion generator on our list, and it can also cover a very good 800 square feet of space. This Wein product is recommended against contaminants such as pollen, mold, dust, chemical fumes, bacteria, and various odors.
Another great feature of this negative ionizer is its size, which is incredibly compact for something that is so powerful. While looking more like a modem, this ionizer lays flat and is only 9 inches wide and 9 inches tall, and it weighs a shockingly low 1.5 pounds. Users also love its noiseless operation, which is fantastic for something that works quite hard. However, a few people did notice that it can leave a black residue around it.
What we liked:
Small and lightweight
Recommended against various contaminants
What could be better:
Can leave a black residue around it
IonPacific Ionbox – Best Portable Negative Ion Generator
Recommended against: smoke & odor, airborne bacteria, allergens, pollen, harmful dust, pet odors, and pet dander
Coverage area: 500 sq. ft.
Efficiency: up to 20 million negative ions/sec
Dimensions: 6.2 x 4.4 x 2.1 in.
Weight: 4.8 lbs.
More features: USB port, ultra-low energy consumption, dual voltage
Who says you only can use your negative ion generator at home? If you’re someone who travels frequently, why not bring your negative ionizer with you on the road? That’s exactly what you can do with what we’re calling the Best Portable Negative Ion Generator, the IonPacific Ionbox.
This negative ion generator is so compact that it can easily rest in your hand. At just 6 inches wide and 4 inches tall, and with a weight of 4.8 pounds, you can take this Ionbox with you anywhere you go! It does a great job of fighting against smoke and odors, airborne bacteria, allergens, dust, and dander, ensuring you have clear air to breathe. Don’t be fooled by its small size either – this Ionbox can cover a fantastic range of 500 square feet, which is perfect for most hotel rooms and apartments. It is also very efficient as well as it can release up to 20 million negative ions per second. The Ionbox also has a durable fan that is also rather quiet.
You can also find this ultra-low energy consuming negative ionizer as a simple, no-frills kind of product as it only has one automatic mode on it that is triggered by a simple press of the power button. As neat as it is to have one of these units, a few people mentioned that the fan either stopped working or made loud noises after a few months of usage.
What we liked:
Very compact and durable
Great for apartments and hotel rooms
Good coverage area
Ultra-low energy consumption
What could be better:
Fan can stop working or start making loud noises after a while
Only has one mode
Things to Consider
Now that you have seen the five best negative ion generators on the market, it’s time to learn a bit more about what makes these devices great and helpful for you. In this buying guide section, we’ll cover the individual features about these negative ion generators and how they all come together to produce one solid unit. After, we’ll then answer a few questions and then wrap things up with our top three choices.
Benefits of using a negative ionizer
There is a number of reasons why you should use a negative ionizer. First, you will not be able to see the particles that float around in the air because they are so fine in size, but these contaminants can lead to health problems such as heart and lung diseases and further make asthma and bronchitis worse for people.
Negative ionizers help to purify the air of these contaminants and produce higher quality air. For those that also suffer from allergies, negative ionizers can help remove matters such as pollen from the air. Negative ionizers are also great for helping to fight off any bad odor that may be lingering in your air. Especially if you cook a lot of have pets whose odors sit in the fabric of your furniture, negative ionizers is great at minimizing these odors.
Breathing fresh and safe air should be available to all people, and depending on where you live, clean air can be a problem. However, with a negative ionizer in your household, you will be able to enjoy the benefits of fresh air every day.
How to pick the best negative ion generator?
When choosing the best negative ion generator, it depends on what it is you’re looking for in a particular model. If you’re unsure of what features to focus on, you’re in the right place. Here, we’ll be taking you through the most important individual features of negative ionizers to help inform you more about these devices. Some of the things we’ll cover include the coverage area, efficiency, modes and settings, design, noise level, dimensions, and weight, and finally, the price of these units. All of these features work together to create a negative ionizer that makes it the best in its class.
What is it recommended against?
The one thing people may not know about is that there are lots of different contaminants that can be harmful to you. Fortunately, the best negative ion generators are able to work against plenty of these bad particles. While each negative ion generator is different, we can see some similarities between them. These negative ionizers are recommended against smoke and different odors, allergens such as pollen and dust, mold, and airborne bacteria. If you are looking for a model that works well against various contaminants, check the Dreval D-903 Air Purifier.
This refers to the amount of space in the room that the negative ion generator can cover effectively. Since these products are made by different companies and are of different sizes, the coverage area will naturally be different for each product. For example, the Wein Vortex VI-3500 Room Ionic Air Purifier has a coverage area of 800 square feet, which is large enough to purify the air in most two-bedroom apartments or a very large living and dining room. On the other end, our Editor’s Choice, the TREKOO Air Purifier, is capable of purifying the air in the 166 square feet room.
While the coverage area is crucial, the efficiency of the dispersion of negative ions per second, filtration stages, and different modes are just as important.
The best negative ion generators are great for their efficiency. The efficiency of these devices is determined by how many negative ions are released into the air per second. It should be important to note the way that negative ions work.
Negative ions are released into the air from your generator, and they clamp on to the particulate matter in the air, and instead of eliminating them, much like how air purifiers do, they latch onto these fine particulate and drag them to the floor. The particulate is still on the floor, and you’ll need to either vacuum or do a deep cleaning to remove it. The best negative ionizers do a great job of releasing millions of negative ions into the air, and the more of these release, the better all of the particulate matter in the air will be caught and dragged down to the surface, which leads to cleaner air for you.
Modes and settings
The best negative ion generators all vary when it comes to modes and settings. Some of these generators have a timer function that enables you to use your negative ionizer only during certain times of the day. This can help you save up on electricity and reduce the wear and tear of the device. Some models, like our Editor’s Choice, the TREKOO Air Purifier, come with a variety of modes that allow you to change them accordingly to your needs. For example, you may want to turn down the efficiency in ‘toilet’ mode as opposed to ‘sleep’ mode.
In terms of the design of the best negative ion generators, for the most part, they are very small, and they have fairly intuitive interfaces. This means that you can easily learn how to use the unit quickly since there are very few things to interact with on the product. For some negative ionizers, like the IonPacific Ionbox, there is actually nothing to engage with as you simply plug it into the wall and press the power button to work it.
On the other hand, the Dreval D-903 Air Purifier and the TREKOO Air Purifier both have intuitive controls on them it, and it’s quite easy to learn how to use both. Some have preset timer modes as well that you can utilize if you only want to use it for a few hours at a time.
Nothing can be more annoying than a negative ion generator that makes constant and loud noises as it’s working. Fortunately, the best negative ion generators are all fairly quiet when they are operating. Some, like our Editor’s Choice, the TREKOO Air Purifier, even have their own quiet operation modes. Others negative ion generators, however, have large fans, and these tend to be much noisier.
It’s advised to always check the noise levels of the negative ion generator before purchasing it.
For the most part, the best negative ion generators are fairly small, and some, including our Best Portable Negative Ion Generator, the IonPacific Ionbox, are so tiny that you can easily pack them up and bring with you on vacation. This one only measures out to 6 inches by 4 inches, so you can imagine, fitting this ionizer into the palm of your hand. The other ones are also quite small, with the biggest one being the Dreval D-903 Air Purifier, which only measures out to 13 inches wide and 20 inches tall.
Much like the rather small dimensions of these negative ion generators, the weight of these devices is fairly low as well. Some are as light as just one pound, such as seen with the Nature Bright SunTouch Plus, while others can weigh a bit more. The heaviest negative ion generator in our list is the Dreval D-903 Air Purifier, which weighs 11 pounds.
The best negative ion generators are fairly straightforward, and very few of them really offer any extra standout features. Some of the best negative ion generators offer a motion detector feature that is able to register whether there are people in the room. The more motions it sees, the more it will continue to run, and when there is no motion, it will reduce energy consumption. Another extra feature is actually a big part of the Nature Bright SunTouch Plus negative ion generator. This model offers light therapy along with the release of negative ions. Using light to complement the negative ions is a great way to boost your mental state and to help you feel refreshed during this dreaded and dreary winter months.
Like with any product that you can find on the market, the prices of the negative ion generators greatly vary. Generally, these devices are quite affordable, given that they are meant to provide you with cleaner air to breathe. For example, you can purchase a negative ion generator for as little as $65. This is the case with our Editor’s Choice, the TREKOO Air Purifier. If you want to get an idea of something more on the expensive side, you’re looking to spend roughly $200 for the Dreval D-903 Air Purifier. Overall, you’ll find most negative ion generators to range between $50 and $125.
Most of the negative ion generators use disposable filters, and they are generally not meant to be cleaned. With these disposable filters, they usually should be replaced once every six months or whenever you start to notice a significant reduction in the quality of the air you’re breathing. For instance, if you notice that the odors that your negative ion generator is recommended against are still lingering in the air, it’s most likely the time to check up on your filter to see if it needs to be replaced.
It’s best to place your negative ion generator in an area that won’t impede its ability to disperse negative ions into the air, such as spaces that can confine it or enclose it. Try to put it out into an area that is very spacious and open so that it can be as efficient as possible in a larger area. You can put it on a table, on a kitchen countertop, on your computer desk, or even on the floor. Wherever it won’t be crowded is the best place to put it in your house.
It’s best to run your negative ion generator as much as you can in the room that you spend the most time in. Some of these negative ionizers have timer modes on them that enable you to run them for a set amount of time before it switches off. It’s good to take advantage of this feature in case you don’t spend a lot of time in the room. Some other negative ionizers also have different modes that allow you to play around with the settings for different modes. For example, the settings for your sleep mode might be different than the settings you set for it to work during the day.
In our verdict, we present to you our top three negative ion generators.
Starting off with our Editor’s Choice, the TREKOO Air Purifier is our top choice because it combines excellent quality with affordability. Despite only being meant for smaller rooms, it is very efficient for these spaces, and we particularly love the motion sensor feature that enables for better energy savings!
Next up is the Dreval D-903 Air Purifier. We love that this one features multiple filtration stages to help purify the air and disperse negative ions that help to capture up to 99.97% of all particles in the air. It also receives bonus marks from us for its intuitive button panel.
Last of our top picks is the Nature Bright SunTouch Plus. In those long and cold winter days, it can be hard to get exposure to sunlight, but with this product, not only does it simulate the bright blue skies, but it also helps to provide you with fresh and pure air.
It’s our hope that this article helped you find the best negative ion generator, and now, you can enjoy the fresh air in your house every day!