7 Best Filterless Air Purifier

Searching for the best filterless air purifier? I got you! The demand for filterless air purifiers is increasing rapidly, especially for those who are absolutely tired of cleaning and maintaining air filters.

Previously, there have been some arguments regarding this technology, but more and more people are now appreciating the fact that neither do we need to clean the filters anymore nor do we need to replace them.

There are 4 major types of filterless air purifiers in the market today. The first is the ionic air purifier or electrostatic ionizer, which primarily targets airborne particulate matter.

Next is the ozone-based air purifier, which works on a molecular level and helps eliminate bacteria, fungus, and unpleasant odors. The third is the ultraviolet light air purifier, which uses UV lamps and a HEPA filter and targets impure air to convert it into purified air.

And finally, there is the photocatalytic oxidation (PCO) air purifier, which can eliminate airborne particles of up to 0.001 microns. These also target chemically active compounds, microbes, volatile organic compounds, and dust particles.

Why filterless air purifier is good?

Filterless air purifiers effectively eliminate even the smallest contaminants like bacteria and viruses.

They can also cover a large area of around 3500 square feet and are also energy-efficient. You will be saving a lot of time and money, too, because you do not have to look to purchase replaceable or washable filters.

Most filterless air purifiers do not need constant maintenance and only need it once or twice every few years. Moreover, they also generate a very low amount of noise and cause fewer distractions and disturbances.

The only disadvantage of this type of air purifier is that some of them, like ionic air purifiers or ionizers, release ozone into the atmosphere, which can cause harmful effects for people with asthma.

If you are looking for the best filterless air purifier on the market, mentioned below are my top accommodations to help you make the best pick.

7 best filterless air purifiers to check out right now.

1. Airfree T800 Filterless Air Purifier. 

The Airfree T800 is most effective for small rooms and will not contribute much to medium or large-sized rooms.

This brand came into existence in 2004. Yes, it took a different route than others as it concentrated on developing simple yet exclusive devices that work based on a natural method to eliminate airborne allergens using heat.

This device is relatively small, and the brand claims that you can enjoy the entire Airfree experience at a much lower cost with this one.

And I agree that this air purifier’s price point is one of the lowest you’ll ever come across. As the name suggests, there are no filters in this one, and it sucks in polluted air from the bottom and releases the fresh air from the grill located at the top.

The build quality is good, and the design has been kept relatively stylish. It uses the Exclusive Patented Thermodynamic TSS Technology to filter air and effectively destroys allergens and microorganisms by generating over 400 degrees Fahrenheit heat, leading to instant sterilization of the contaminants.

It is worth knowing that no ozone is released in this process, so this air purifier is not harmful to anyone with asthma or respiratory issues.

The T800 is suitable for covering an area of 180 square feet and is completely silent. In fact, you will get to know that the air purifier is running only by checking that the top lid is warm.

The power consumption is also very low and is around 33W. However, this is meant to be a minimalistic device and does not have any fancy features included.

Pros.

• 100% filterless; no need to purchase or maintain any filters.
• Operates completely silently.
• Lightweight and portable.
• Totally ozone free.

Cons.

• Suitable only for small size rooms.
• No additional features are included.

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2. OION Technologies B-1000 Ionic Air Purifier.

This one is an ionizer at an extremely budget price, making it a great competitor for winning the best filterless air purifier title.

But does the budget price mean you have to compromise on quality and features? The B-1000 has been certified by the California Air Resources Board (CARB); hence you can be assured of its safety.

The design is quite different from most other ionizers in this price range and is lightweight, making it portable. Plus, there is a blue light located at the center of the front plate to indicate whether the UV light is active or not.

But there is no night light feature to change the color of the UV bulb. The turn on and turn off button is causes somewhat of an inconvenience as it is present just near the base of the air purifier.

The B-1000 uses a three-stage air cleaning system consisting of an activated carbon filter to absorb pet and cooking smells, an ionizer to eliminate toxic airborne allergens, and a UV-C stabilizer to help further destroy germs and pathogens.

This air purifier’s performance is average and can cover an area of around 100 square feet. The ACH rating is 2x, which could have been better, in my opinion.

The fan power is low in the noise level generated between 35dB and 45dB. The power consumption is also very reasonable and is around 7.5-40W. However, there are no additional features in this air purifier.

Pros.

• Very low fan sound.
• Blue indicator light does not create destruction while sleeping.
• Effective in removing unpleasant odors.
• Price range is highly affordable.
• Easy to use.

Cons.

• Not suitable for larger areas.
• The light cannot be turned off.
• UV-C light filter.
• Generates some amount of ozone.

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3. Airfree Onix 3000 (P3000) Filterless Air Purifier.

If you are looking for an air purifier that targets mold spores and organic allergens and is very silent at the same time, the Airfree P3000 is a great choice. The design is genuinely innovative, and it doesn’t need any filter or fan.

The unit uses heat to offer clean air without making any noise. The best part of the Airfree P3000 is that, along with its capability to destroy various contaminants effectively, it also has simple controls and a chic design, which goes with any modern home decor.

This air purifier runs on the basis of thermodynamic TSS Technology, and it is a part air sterilizer, part filter, and even more. It can easily eradicate pollutants like dust mites with the help of heat to promote better indoor air quality.

This small yet power-packed machine can cover an area of 650 square feet, which is quite impressive for its size. It is also quite easy to move the device from one room to another because it’s like to it.

There is also an adjustable night light for when you want to use the device at night. The body of the air purifier is made of plastic with a ceramic core.

The price point of the Airfree P3000 is slightly higher due to its design and the parts used. It does take a different approach to air purification than filter-based air purifiers.

But the only con here is that if there is a failure in the device, the whole purifier will have to be replaced. But nonetheless, it’s effective, does its job well and hence deserves to be in the race to become the best filterless air purifier. 

Pros.

• Runs silently. 
• Unique and modern design.
• Low energy consumption. 
• 100% ozone-free and environmentally friendly technology. 
• No maintenance is required.
• 2-year warranty. 
• Adjustable night light.

Cons.

• Not very durable.
• Slightly expensive.

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4. Airfree P1000 Filterless Air Purifier.

Airfree has always been one of the top brands in the air purifier market, and their models run on an exclusive, patented thermodynamic TSS technology. The P1000 is definitely one of their popular models and for the right reasons.

The design is sleek with an affordable price range, which makes it a worthy contender on this list. The air purification unit is lightweight and easily portable to be used in different rooms.There are perforated holes around the air purifier’s body, which act as the air outlet. The Airfree P1000 uses a simple convection method to move the air, which is why only the bottom-to-top airflow system can be used because warm air can only rise up.

Moreover, the unit is very lightweight and runs based on the exclusive patented thermodynamic TSS technology, where microorganisms and allergens are destroyed by heating them to over 400 degrees Fahrenheit.

According to the manufacturers, this air purifier can cover an area of around 450 square feet. There is no ACH rating as the device needs to run gradually for an interactive air cycle.

The Airfree P1000 is completely silent, and you will not hear or notice any sound. But if you want to know whether the air purifier is working or not, you can check the top lid. If it’s warm, that means it’s working perfectly. The power consumption of this purifier is also very minimal at 45W.

This device has no additional features, not even a power button. You only need to plug it in for it to run. However, if the unit is not installed correctly, it has an intelligent warning sensor to alert the users. The light function can also be turned on or off according to convenience.

Pros.

• No maintenance cost is involved as it is entirely filterless.
• Completely silent.
• Lightweight and portable.
• Anti-stress light, which can be turned on or off.
• Effective in getting rid of musty odors and mold spores.

Cons.

• Does not have any additional features.
• Cannot trap actual particulate matter.

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5. Airfree Tulip 1000 Filterless Air Purifier.

This one also does not really come packed with fancy features and is among the low-range options from this brand. The Airfree Tulip 1000 can clean a room of 450 square feet and comes at a decent price range.

The design is clean and minimalistic, and the primary focus is the big night light lid. Since this air purifier uses simple convection to move the air, it is better to keep it on your table or mounted on the wall to ensure you use the device to its maximum efficiency.

This is one of the most lightweight air purifiers you will come across, making it easily portable from one room to the next. Like any Airfree purifier, this also runs based on an exclusive Patented Thermodynamic TSS Technology.

The air purifier eliminates allergens and microorganisms by heating them to over 400 degrees Fahrenheit in this method. But you must know that this technology effectively eliminates organic matters but does not trap them.

Hence, if getting rid of pet hair, fur and dirt is your first priority, then this device is not for you.

Since there is no involvement of UV light filtration or ionization, there is no generation of ozone to trigger breathing issues or asthma.

The machine does not generate any noise and operates completely silent. The power consumption of this unit is even less than a light bulb, which is around 44W only.

However, just like the other Airfree purifiers on this list, there are no additional features in this one as well.

But one distinct feature of the Airfree Tulip 1000 is the signature night light function. The night light function of this particular air purifier lets you experience exclusive multi-color night light with 10 different adjustable colors, including light blue, blue, green, brown, yellow, gray, orange, red, rose, and violet.

You have the freedom to choose any color of your preference and even its intensity. Or the device will choose anyone randomly.

Pros.

• Exclusive night light function with 10 adjustable colors.
• No extra costs with replacement filters and their maintenance.
• Completely silent operation.
• 100% ozone free.
• Low energy consumption.
• Compact, lightweight, and easily portable.

Cons.

• No visible proof as to whether it’s working or not.
• Not effective in removing smoke and odors completely.

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6. Envion Ionic Pro Turbo.

This is one of North America’s most popular air purifier brands and is a standard ionizer certified by the CARB to meet an ozone emission concentration limit.

The design honestly is not that great, in my opinion, but it does help you save money as there is no need to buy replacement filters. It is slightly bigger compared to other models from this brand and is also thinner at the same time.

A control panel is located at the top and is actually quite simple with just a single button, 4 indicators for fan speeds, and a clean indicator. The air purification unit might be slightly bigger in size, but it is still very lightweight and can be easily moved from one room to another.

The filtration system contains only an ionizer that helps trap air pollutants by charging them positively with the help of negative ions. In terms of maintenance, this device only needs some monthly cleaning to keep it working efficiently, and there is an indicator to remind you of that.

The Envion Ionic Pro Turbo can cover an area of 500 square feet, but it works much better in a smaller room. The ACH rating is 3x, which means the device will refresh the air every 20 minutes.

Considering its capability to clean an area of 500 square feet, the clean air delivery rate (CADR) rating is somewhat low at 85cfm in general.

The major selling point of this purifier is its quiet operation. The noise level is only around 40dB, and in case of any buzzing sound later after usage, you can reduce it by regularly cleaning the collector blades and wires. The power consumption is also quite reasonable at only 12W.

Pros.

• Cleaning indicator which glows red when it’s time to clean the collector blades.
• No filter replacement required.
• Quiet operation.
• CARB certified for meeting ozone emission safety standards.

Cons.

• Blue LEDs can be too bright for some.
• No additional features.
• Performance could have been better.

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7. Hamilton Beach TrueAir Air Purifier.

What’s unique about this air purifier as compared to the rest on this list is the presence of a permanent HEPA filter. This filter promotes better indoor air quality and also effectively eliminates unpleasant odors at the same time.

There are 3 different speed settings, which you can choose according to your convenience. You can also opt for the quietest setting at night or the more powerful one for a deep HEPA air clean.

The carbon filters effectively clean up all dust mites, pet hair, and dander. The Hamilton Beach TrueAir is suitable for both medium and large-sized rooms.

Moreover, the HEPA filter can remove up to 99% of dust mites, pet dander, mold spores, and other airborne allergens and even reduces odors significantly.

The noise level generated is also very low and is barely detectable. Hence If you are using it in a room where you need to read or study, this air purifier will not cause any distractions.

This air purifier is built to last, but the duration also depends on how well you follow the maintenance suggestions.

The price point has been kept at an affordable range, and you can use it anywhere in your home, office, or even commercial spaces.

Pros.

• Permanent HEPA filter, which eliminates 99% of airborne particles.
• Easy to operate and use.
• Three different fan speeds.
• Do not need to replace filters ever.
• Suitable for large rooms. 
• Operates very quietly.

Cons.

• Requires frequent maintenance.

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Filterless Vs Filter Air Purifiers

The primary difference between filter and filterless air purifiers is the technology they are based on. Filter air purifiers are usually based on one or more filtration media like a HEPA filter.

On the other hand, a no-filter air purifier work based on different technologies to perform the same functions. While some of them are ionic, some work with the help of UV light, some are ozone-based and some function based on photocatalytic oxidation.

Of course, as already established, the main difference is that while one has a filter, the other doesn’t.

 Filter air purifiers are great for targeting unpleasant odors, dust, pet dander, and several other allergens. But they are not quite adequate for sanitizing viruses, bacteria, and germs.

The situation is quite the opposite for filterless air purifiers, as they are not quite efficient in eliminating larger particles and odors. But they can handle germs, bacteria, and viruses effortlessly.

Secondly, a no-filter air purifier is superior to a filter one in terms of coverage area. The energy consumption in filter air purifiers is higher than in filterless, and filter air purifiers require more maintenance due to filter replacement. But filter-free air purifiers do not need much maintenance.

Filter air purifiers make more noise while operating, but they do not produce any ozone, which can be irritating, especially for people with asthma.

Filterless air purifiers make minimal noise and are mostly silent, but some of them do generate a little amount of ozone.

So what to pick- filter air purifier or filterless air purifier?

It depends on the type of contaminants you want to remove and your priorities, including the room size, budget, noise level, and energy consumption.

The factors have been covered briefly in the differences between the two above to help you make an informed decision.

Verdict.

For everyone out there who is looking to pick a suitable filterless air purifier, I have got 7 great recommendations mentioned above. However, if I have to pick the best filterless air purifier, it would be the Hamilton Beach TrueAir Purifier.

It has a permanent HEPA filter, which can capture 99% of airborne contaminants. The best part is you do not even have to replace the filter, and you can just vacuum it.

There is a quick clean option to get the maximum performance and even a quiet setting to use the device at night.

The design is modern, and you can place it both horizontally or vertically in your space. Plus, the compact size and the affordable price range really make it a worthy winner, in my opinion.