Best Air Purifier 2017

With much of the world experiencing the onset of springtime, many people are finding themselves in the midst of a great struggle. On the one hand, there’s the warm weather and visions of outdoor fun, family gatherings, and the simple joys of the long, languid season to come, and on the other, a host of allergies and other nasty surprises crouch in wait, ever ready to ruin what should be a happy time.

Luckily, the advent of affordable, consumer grade air purification systems has made it possible for the average individual or family to enjoy themselves in healthful comfort all the year round. Of course, finding the best air purifier for your own unique situation and circumstances isn’t always simple. As luck would have it, we’ve created this handy primer on picking your own optimum air purification solution and hopefully get a, “breath of fresh air”. To get started, simply keep reading.

Compare: The 10 Top Rated Air Purifiers

1whirlpool-ap51030kb-true-hepaWhirlpool AP51030KB True HEPAWhirlpool$$$$4.9
2winix-wac9500-ultimateWinix WAC9500 UltimateWinix$$$$4.7
3honeywell-50250-sHoneywell 50250-S True HEPA Air PurifierHoneywell$$$4.6
4winix-wac5500Winix WAC5500Winix$$$4.7
5germguardian-ac4825GermGuardian AC4825Guardian Technologies$$4.5
6o-ion-b-1000O-Ion B-1000O-Ion$$4.4
7honeywell-true-hepaHoneywell True HEPAHoneywell$$$4.8
8hamilton-beach-04383aHamilton Beach 04383AHamilton Beach$4.5
9honeywell-long-lifeHoneywell 17000-S QuietCare True HEPA Air PurifierHoneywell$$4.6
10holmes-hepa-desktopHolmes HEPA Type Desktop Air PurifierHolmes$4.4

Our Air Purifier Reviews

Best Budget Option Air Purifier – The Winix WAC5500 True HEPA Air Cleaner

For the budget conscious shopper looking for an air purifier of their own, the Winix WAC5500 True HEPA Air Cleaner from Winix is a great option.

Equipped with all the amenities that one ought to expect from a name brand provider (HEPA filtration, an Energy Star rating, and so on) as well as a few surprises like their proprietary PlasmaWave technology, this machine will serve quite well as a purification system for the bedroom, family area / living room, or even a smaller studio apartment, and it’ll do it without breaking the bank.


It works very well. It is the perfect compact size for smaller spaces. It is very affordable. It comes backed with a warranty. It is easy to set up and use. This machine will serve quite well as a purification system for any space.


It doesn’t work in larger spaces. It’s not built to last as long as more high-end units.

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Best Value Air Purifier for the Money – The Winix WAC9500 Ultimate Pet True HEPA Air Cleaner

For those shoppers with a little more room, financially speaking, to strike a contrast between sticker price and feature set, there’s the Winix WAC9500 Ultimate. A step up from the WAC5500, this air purifier includes all of the features of the entry-level model while incorporating a few of its own – a pair of washable, reusable filters and auto / hands free operation, just to name a couple.

The Winix WAC9500 Ultimate is just the thing for freshening slightly larger rooms, apartments, or those homes which happen to be shared by a furry, four legged little friend.


It is easy to use. It is very powerful. It is energy efficient. It works in large spaces. A step up from the WAC5500, this air purifier includes all of the features of the entry-level model while incorporating a few of its own.


Not great at eliminating odors.

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Best Overall Air Purifier – The Whirlpool AP51030KB Whispure True Hepa Air Purifier

Sometimes, you just need – or is that want? – to splurge a little. The necessary cash outlay isn’t nearly as important as what you’re getting in return: top of the range features and specifications wrapped up in a sleek, visually pleasing package. When that time comes – assuming you’re in the market for an air purifier, that is – the Whirlpool AP51030KB will be waiting.

A small form factor hides a powerhouse – this unit is simultaneously brawny enough to handle large areas and silent enough as to be barely noticeable. With plenty of bells, whistles, and little extras to its name, this air purifier is sure to satisfy even the most discerning of customers.


It’s easy to use. It is easy to move. It has electronic controls that can be used to change settings. 


It is a bit expensive but it does get the job done at the end of the day. Most people who purchase this model love it!

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Our Top Rated Air Purifiers


Best Overallwhirlpool-ap51030kb-true-hepa

Best For The Money winix-wac9500-ultimate

Best Cheap winix-wac5500

What Is An Air Purifier?

Simply put, an air purifier is exactly what it sounds like: a machine designed to remove any number of toxins, allergens, molds and fungi, pet-based irritants, and other related hazards from the air. As such, their primary market is that portion of the population which suffers from respiratory distress and/or diminished lung function brought on by allergies of all types, COPD (Chronic Obstructive Pulmonary Disease), advanced age, or some combination of other factors, but anyone who appreciates a breath of fresh air can benefit from owning a machine like this. Whether a purifier is of commercial or consumer grade is basically irrelevant in terms of overall construction; filtration methods may differ depending upon host facilities (a hospital versus a home), but overall size and design, the materials used in fabrication, and so forth hardly ever do.

What Are The Advantages Of Owning An Air Purifier?

The advantages of owning an air purifier, whether it be a portable system for home use or a gigantic commercial / industrial setup, are almost harshly blunt: Do you enjoy breathing clean air, air which is free of all the nasty things that aggravate (or in some cases, even cause) allergies, respiratory problems, and so on? Then buy an air filter. Indeed, it may even be that your physician has written you a prescription for one; they are often used as part of the medical treatment given to patients with advanced breathing problems.

What Are The Different Types of Air Purifiers?

Beyond the comparatively slight variances in size, materials strength, and so on that delineate a residential or consumer product from a commercial or industrial one, the overall design of the modern air purifier is relatively simplistic and uniform. With that said, there is quite a lot of variety to be found in the methods by which these machines actually scrub the air they circulate. A brief explanation of the most prevalent air purification designs & techniques can be found below.

  • Filter Based – Air purifiers that work based on simple filtration – yes, the same principle that keeps your furnace or dryer clean and clear of lint or other particulate matter – are far and away the most widespread. Unsurprisingly, it’s also the cheapest and most low-maintenance solution available, at least in comparative terms. Suitable for both residential and commercial / industrial use, these machines operate via the principle of size exclusion. Air gets pushed through the filter(s) on the machine, and anything too large – anything larger than about three tenths of a micrometer – simply doesn’t make it through to the other side. Filtration based air purifiers can be found in two main sub-configurations:
    • High Efficiency Particulate Arrestance (HEPA) Filters, which are widely popular, greener (that is, more environmentally friendly) and slightly more effective when used properly.
    • Minimum Efficiency Reporting Value (MERV) Filter Systems, which are less well-known when compared to HEPA filtration systems, which is probably due to their diminished capacity for residential use – higher operational costs and the ability of users to compromise a MERV filter’s higher effectiveness from improper filter placement make them undesirable for the average consumer.
  • Ultraviolet Germicidal Irradiation – Dubbed UVGI for short, this filtration method works by forcing air past a set of ultraviolet (UV) lamps. This kills various pathogens, allergens, micro-organisms, and so forth by exposing them to a sufficiently lethal dose of the same radiation that pours forth from the Sun. Think of it as the mother of all sunburns, but on a micro scale. Dead matter is captured in a physical filter and removed during routine cleaning.
  • Thermodynamic SterilizationWhile some air purifiers use this system to help clean the air, it’s improper to call it a filtration method as such, since it doesn’t actually parse out the irritants from the surrounding air. Instead, air is passed through a series of extremely hot ceramic coils and cooling plates (coil temperatures can reach 200 degrees Celsius / 392 Fahrenheit) which serves to first incinerate any offensive matter and then to cool the newly-cleansed air so that humans and animals can safely take it in.
  • Activated Carbon Filtration – While the use of activated carbon has been a popular choice for commercial air purification applications for a long time, it isn’t designed to remove physical matter from the air. Instead, like a stomach pump for the ether, activated carbon transforms gaseous toxins, irritants, and other such material into their respective solid phases. At that point, it’s up to a secondary filtration technology to screen them, lest they simply escape into the air (and the lungs) of the wider world.
  • Polarized Media Filtration (PMF) – In contrast to HEPA filtration and other such methodologies, which use time and passivity to do their work for them, this filtration technique is known as “active purification”, since it cleans the air on an ongoing, real time basis. This is accomplished through the electrical polarization of undesired materials – dust mites, spores of various types, pet dander, and any number of other irritants, allergens, and so on – by a persistent electric current. As the field passes through / over undesired objects in the air, they become polarized and, for lack of a better word, sticky. Said sticky particulates are drawn onto a disposable filtration pad where they, like the field that trapped them to begin with, exert a force on any ultra-fine matter – the extremely tiny particles which cause and carry unpleasant smells are one such example – that the field itself misses; the more filled the filter pad becomes, the larger and more powerful its biological magnet. Meanwhile, the field continues to generate and oscillate, collecting and trapping more matter as it goes, and the cycle persists in this manner until the air is cleansed.
  • Ionizers – Ionizers work in a similar fashion to PMF, but the technicalities are different. In the case of ionizer-based air purification, the machine creates ions from gas or ambient air, and these ions attach themselves to whatever needs filtering. These ion-clad particles are attracted to a collection plate for eventual removal. There are two types of ionizers:
    • Fanless ionizers are silent running and very energy efficient, but their air filtration capabilities are sub par, at least by comparison.
    • Ionizers equipped with fans prioritize air scrubbing force over aesthetics, and are therefore noisier and less efficient than their fanless counterparts.
  • Ozone Generators – The atom bomb of filtration technologies, these machines are designed to do one thing: Kill every particle of offensive matter within the confines of a building through the administration of a massive dose of ozone. It isn’t safe for people to breathe the gas emitted by ozone generators, so even though residential grade air filtration systems are different than the full-scale ozone generators discussed here, one should definitely think twice before buying an air purifier that produces it if you plan on using it in the home or office.
  • Titanium Dioxide Filtration – This method of air purification works by mixing nanoscale particles of the aforementioned element into common paint (along with some calcium carbonate for balance). The various forms of particulate matter that one would wish to rid himself or herself of make contact with the paint, and in so doing, are destroyed instantly. Think of it as a chemical bug zapper.

Considerations for Choosing the Best Air Purifier

With all of the clamoring voices out there, it can be hard to make a final purchasing decision. After all, with every company in the air purification business telling you that theirs is the best option – the only option – worth considering, things can get a bit confusing. Throw in all the marketing glitz and technical details, and daunting hardly seems an adequate word to describe the pre-purchase jitters that can sweep over a person. Luckily, there’s a way to cut through all the haze. Simply keep the primary factors that make your tool (or whatever else you want to buy) worth something in the first place. In the case of air purifiers, those factors follow, with a brief explanation of how they apply to the three models outlined earlier.


It seems simple to start out with price as a fundamental tenet of air purifier selection, but it’s necessary nevertheless. In addition to simple budgetary constraints, the price of a machine like this will have a direct bearing on what you actually end up with – cutting corners on features is a great way to keep manufacturer costs down, for example. Alternatively, true quality and convenience will always come with some mild sticker shock.


An air purifier is only as good as the extent to which it cleans the air that surrounds it. How much air an individual unit can clean, how quickly it accomplishes it, and the byproducts of the overall process are all things to consider when it comes to performance.


Everyone likes a feature-rich product, but it’s important to make sure that the features attached to the air purifier you end up buying are helpful rather than detrimental. Additionally, some companies will attempt to trick customers with pseudo-features – “HEPA-like” filters are a popular con – or legitimate but superfluous extras.


While buying an air purifier you can be happy with over the long term can be something of a challenge without the proper information, this handy review guide should make it simple and quick. A final note: When purchasing a machine like this one, it’s important to balance its pros and cons so that you make an objective, complete buying decision based upon all the facts and evidence. For example, while the budget WAC5500 from Winix, Inc. will cost less up front, filter replacement costs will offset any savings when compared to the best overall pick on our list (the Whirlpool Whispure 510), which is saying quite a lot given the 510’s weak stock filters. In short, think critically, buy intelligently, and when in doubt, go for the best overall value, not just the item with the lowest price.