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2019 Best Filterless Air Purifier

Best Filterless Air Purifier
Best Filterless Air Purifier
Is determined by what angle you take a look at a filterless air purifier. It may be an eco-friendly air purifying machine that may save you lots of effort and time in maintenance. It can be seemed upon as a sub-standard unit that falls behind a HEPA air cleaner in efficiency. Some may argue this is not a real air purifier as there isn’t any filter in any respect. Whatever take you’ve gotten, we’re here to rebut on the destructive points and lead you to an entire new perspective.

Say no to filters!

How filterless air purifier works

Because the identify implied, filterless air cleaner will purify the air without counting on any mechanical filter. Is dependent upon the know-how, it may cover a variety of indoor pollution like a traditional HEPA filter would. There are 5 kinds of air purifiers out there, a type of is the forbidden fruit that you need to by no means go for.

  • Ionizer/ Electrostatic recipitator – Electrostatically charge and launch unfavorable ions to merge with constructive ions particles. The merge particles would fall because of the elevated weight and calm down within the air purifier. There are slight differences between ionizer and electrostatic precipitator. The previous is often a part of a HEPA air purifier filtration. The later is a standalone unit that comes with a collector plate to collect the fall particles.
  • Thermodynamic sterilization – aka Airfree air purifier. Comparable concept as boiling water that kills 99.9% of microorganisms and germs by means of warmth. The sterilization process end with solely normal temperature air launched back out.
  • Hybrid – The primary filtration have to be a everlasting filter or know-how that’s every green. While the supporting filters like carbon filter could be washable or replaceable. This permits the air air purifier to work even when the rest of the filtration is worn out. Honeywell AirGenius 5 is an effective example.
  • Ultraviolet UV cleaner – A conversational inclusion in the listing as mild bulb still has a utilization lifespan. Uses UV-C/ ultraviolet from a light-weight bulb to remove bacteria and viruses. The allergens are obliterated inside thus no cleaning ever needed. Trendy UVGI cleaner comes together with ionizer which we now have touched on earlier.
  • Ozone generator – This is the forbidden one we talked about. Ozone generator works by means of the process of oxidation. It cut up oxygen molecules (O2) into single atoms, eliminating any contaminants in between. The only atoms with merge with different oxygen molecules to type ozone (O3). Ozone generator is efficient towards odor, makes use of no filter however is harmful to our body. Inhaling to ozone can result in many negative effects and respiratory issues.

How can we measure?

The “everlasting” filtration Firstly, it have to be filterless. Meaning the primary filtration may be reused again and again with out expiring. Then we’ll measure its effectiveness towards family allergens, smoke, and odors. The quicker it kills of the irritants, the more weight we’ll place on the air purifier.
Room measurement/ Coverage This one is a no-brainer. The larger the purifying protection, the larger the room measurement an air purifier can cover. As most filter-less air air purifier usually are not CADR examined, the airflow delivery plays a key position right here.
Selling worth Since filter alternative value is nil. The air air purifier selling worth is important in deciding is this the “right” one. No point buying an expensive air air purifier that does not work or take years to recuperate. We will even decide the unit worthiness in comparison with a basic HEPA air air purifier.

Who is this for?

Anyone from that needs clean air free from germs, smoke, and allergens. Busy mother and father or bachelor that do not must be tied down with another house appliances. An asthmatic or hyperallergic individual that’s always sick. Newborn, baby and youngsters would drastically respect it.

Greatest Filterless Air Air purifier 2019

other filter


250 sq. ft. (23 m2)

A well known brand with a not so in style mannequin. AirGenius 5 is a hybrid air air purifier that most people typically missed. Powered by the ifD know-how that’s solely obtainable in chosen Honeywell models. This air air purifier comes with Three stage filtration that is unusual within the filterless world.

What’s cool: Patented QuietClean ifD know-how that remove as much as 99.9% of allergens as small as zero.3 microns. Washable pre-filter that can be reused time and again time. Upgradable odor-reducing pre-filter that captures giant mud, hair, smoke, and odors! There’s also ionizer that may electrostatically charge ions for straightforward capturing.

What’s not: ifD is extra for non-gas particles so the three months lifespan odor pre-filter upgrade is imminent. Filters require common cleanup/ vacuuming to take care of its efficiency.

Briefly: A proven know-how that may prevent numerous time and money finding the alternative filter. It isn’t as environment friendly as True HEPA filter despite the figures recommend in any other case. There’s also the cheaper model AirGenius Four or Three that we might not advocate. Stick to Honeywell AirGenius 5 because it has the perfect value when it comes to performance and features.

  • Glossy, airflow resistance tower design that is trendy and practical.
  • Help either permanent, wahsable pre-filter or odor-reducing pre-filter. Our votes goes to the odor-reducing pre-filter.
  • Practically no annual filter upkeep value as the ifD is reusable.
  • Efficient ifD filter that may capture most microscopic household allergens.
  • Straightforward to make use of Sensible controls with elective oscillation and accent mild.
  • Digital Filter Verify reminder with reside gauge indicator.
  • Highly customizable timer (up to 12 hours).
  • 5 years warranty.
  • Loses out to conventional media filtration that tends to have stronger filtration. Smoke and odor filtration effectivity just isn’t nice either.
  • The permanent filter requires often clean up to forestall particles congestion.

     Annual filter ^    
other filter


Patented Thermodynamic TSS Know-how



650 sq. ft. (60 m2)

Filterless is Airfree. Airfree is filterless. This is how we might describe Onix 3000. A compact air air purifier that kills germ without any filter or releasing any dangerous ozone. All these are achievable because of the Thermodynamic TSS Know-how that applies the idea of boiling water.

What’s cool: Help as much as 650 sq. ft. coverage. Thermodynamic TSS Know-how that destroys (word: NOT capture) microorganisms. This consists of mud mites, mould, pollen, pet dander, odors, bacteria, and viruses. No filter change or upkeep each wanted. Adjustable night time mild.

What’s not: Sluggish purification process that may take days to cleanup a room. Not efficient towards dust.

Briefly: Killing it softly is the easiest way of describing the elimination course of. Compensating that’s the silent and hassle-free operation that you can depart it by itself. If for some purpose you don’t quite fancy Onix 3000, there’s the mirroring mannequin Iris 3000, P3000 or the older P2000.

  • Eco-friendly purification technique that doesn’t requires maintenance/ cleaning.
  • No recurring value because the air purifier doesn’t use any filters.
  • Matches anyplace with its compact and light-weight physique.
  • Adjustable stress-free mild on brightness intensity.
  • Absolutely silent operation thus it should work exceptionally nicely in bed room.
  • Consistent and low power consumption.
  • Purification works on a gradual basis that would take days to cleanup micro-organisms within the room.
  • Less effective especially on dust, smoke and odor filtration examine with typical filter-type air purifier.
  • Plain vanilla unit with no addon features.

     Annual filter ^    
other filter


Patented Thermodynamic TSS Know-how



650 sq. ft. (60 m2)

A up version to Onix 3000 however primarily the same machine. Airfree Lotus continues to be the small air air purifier that makes use of the same Thermodynamic TSS Tech. Internally, it’ll boil as much as 400°F (Yup 400°F) and only launch back cool air out. Effectively killing any microorganism in the process.

What’s cool: Again, Thermodynamic TSS Know-how is the important thing. It is going to kill irritants like pollen, mould, mud mites, odors, ozone, bacteria, and viruses. There isn’t any filter alternative and the TSS doesn’t require cleansing. Lotus can help as much as 650 sq. ft. room measurement and up to 10 selectable colour night time mild.

What’s not: Does not seize dust or any giant particles quick sufficient. To maximise its performance, the air purifier have to be turned on all the time.

Briefly: There’s plenty of good thing happening with Airfree Lotus. The silent no filter purification, one button operation, and child-friendly night time mild. It is no HEPA air air purifier but that’s the great thing about it. It should not be.

  • Eco-friendly purification technique that doesn’t requires upkeep/ cleansing.
  • No recurring value because the air air purifier does not use any filters.
  • Matches anyplace with its compact and light-weight body.
  • Adjustable stress-free mild on brightness depth.
  • Absolutely silent operation thus it’ll work exceptionally nicely in bedroom.
  • Constant and low power consumption.
  • Purification works on a gradual foundation that would take days to cleanup micro-organisms in the room.
  • Much less efficient especially on dust, smoke and odor filtration examine with typical filter-type air purifier.
  • Plain vanilla unit with no addon options.

     Annual filter ^    
other filter


Patented Thermodynamic TSS Know-how



180 sq. ft. (17 m2)

In contrast to the above Airfree model, there’s nothing fancy about T800 air air purifier. It doesn’t have an evening mild, has small purifying protection, and topple simply. Why are we that includes it then? Easy. The no filter, water heating, germ killer Thermodynamic TSS Know-how.

What’s cool: Small, mild and moveable. Very low cost around Three-Four occasions lower than the typical model. More so, it is nonetheless the same Thermodynamic TSS with the same killing efficiency.

What’s not: 180 square ft protection is poor. There’s additionally the sluggish purification course of to deal with.

Briefly: If you’d like a real filterless air purifier and don’t wish to prime up for filter, EVER, that is it. No fancy design, difficult options, naked prices and works as it’s.

  • Airfree’s patented purifying know-how.
  • Zero noise generated.
  • Small and compact.
  • Nice with security features.
  • Used low electricity.
  • Considerably expensive examine with other Airfree air air purifier with approach higher coverage output.
  • Mediocre airflow purifying coverage with no addon features.
  • Sluggish, gradual basis purification that would take days to utterly clear up pollutants.
  • Weak towards mud, smoke and odor examine with typical filter air purifier.

     Annual filter ^    
HEPA filter
carbon filter


carbon zeolite filters (2 pack)



140 sq. ft. (13 m2)

Let’s get this out of my chest, Hamilton Seashore TrueAir Compact Pet just isn’t a very good air air purifier. It is an OK air purifier that does not use any filter (principal HEPA no less than), and extra importantly, is dust low cost. So why are we putting it here? Is because it really works and a few individuals do not need all the flamboyant stuff. Inside the filtration, there is a 3-stage filtration that’s fairly normal in most model. No mud, hair or pet dander can be too troublesome for this pet machine.

What’s cool: HEPA-grade filter with a 99% capturing effectivity. Not the identical par as True HEPA filter however it is going to lure any close by irritants including germs. There’s also a washable pre-filter and a Three-month lifespan carbon zeolite filters.

What’s not: The 140 sq. ft. purifying range won’t sound too dangerous, however in real life, protection is admittedly small. The 3 fan velocity makes little differences and features are non-existence.

Briefly: Again low cost and works all the time ring a bell. This compact air cleaner is greatest used as tabletop lying vertically or horizontally. Do not anticipate something greater than that and you’ll be high-quality. With that being stated, we might nonetheless advocate you to go for any of the above filterless air purifiers. Sticking with TrueAir, contemplate replacing the carbon filters at very least.

  • Very reasonably priced worth .
  • Permanent HEPA grade filter that may be easily keep with routine vacuuming.
  • Compact and moveable body.
  • Versatile design the place you possibly can place the unit horizontally or vertically with out ever affecting the airflow efficiency.
  • Usually low noise output.
  • Small airflow coverage with poor airflow delivery fee.
  • Weak filtration (at solely 3 micron) with gradual declining on the effectiveness of the permanent HEPA-filter .
  • Ineffective towards robust odor and chemical compounds.
  • Plain vanilla unit with no features like timer, air quality status, Auto mode.
  • Comes solely with 1 yr guarantee (some primary unit supply up to 2).

     Annual filter ^    

🏆 Honorable mention

Air purifiers come and down so no level that includes an air purifier that does not reduce it anymore. Listed here are some memorable choices:

  • Bionaire/ Holmes has many zero filter air air purifier that’s low cost and compact. Take note a number of the fashions are not in production. Keep away from these.
  • Envion do carry a couple of iconic mannequin that we’ve got not reviewed (yet). One thing you’ll be able to ponder on.

📃 Earlier holder

  • Airfree P2000
  • Airfree Iris 3000
  • Bionaire/ Holmes Egg air purifier

Greatest Filterless Air Air purifier Comparison Desk

Regularly Asked Questions FAQ

What is the advantage of using a filterless air purifier?