Air Purifiers Top Rated 5 Stars, 4 Stars, Most Reviewed Brands AirFree, Alen, AllerAir, Austin Air, Biozone, Neoair, Rabbit Air, Surround Air Price Under $200, $200 to $499, $500 to $999, $1,000 and Up What Do You Want to Treat? Allergies/Asthma, Chemicals, Dander/Pollen/Dust, MCS, Mold/Bacteria, Odors, Pet Odors and Dander, Smoke/Gas, Urban Pollution, More... Where Will You Use It? Bedroom or Nursery, Car, Entire House, Hospital, Industrial Setting, Living Room/Family Room, School or Office Filtration Type HEPA, HEPA and Carbon, HEPA and Charcoal, HEPA and UV, Ionic, Ozone, Thermodynamic - no filter, Electrostatic Maximum Coverage Area Under 200 sq ft, 200 to 499 sq ft, 500 to 1000 sq ft, Over 1000 sq ft Clean Air Delivery Under 100 cu ft/min, 100 to 200 cu ft/min, Over 200 cu ft/min Air Changes Under 5/hr, 5 to 10/hr, Over 10/hr Noise Level Silent, Quiet Placement Floor, Table, Wall, Dashboard, Central Air System Wheels Wheeled, Without Wheels Special Features Most Effective, Easiest to Maintain, Trusted by Hospitals, Cover the Whole House, Most Attractive Models Air Purifier Accessories Top Rated 5 Stars, 4 Stars, Most Reviewed Brands Air Oasis, Air Pura, Alen, AllerAir, Austin Air Price Under $50, $50 to $99, $100 and up Type Pre-Filter, Carbon Filter, HEPA Filter, Charcoal Filter, Media Filter, Permafilter, Other Filters, Cartridge, Kit Promotions Free Shipping, Top Sellers

Home > Air Purifiers Buying Guide Air Purifiers Buying Guide Choose a buying guide: Air Purifiers | Air Purifier Accessories Brands Whynter Air Purifiers — Top pick: See all: Whynter Air Purifiers Air Pura Air Purifiers — Top pick: Air Pura I-600 Healthcare Air Purifier - Fast FREE FedEx Shipping! See all: Air Pura Air Purifiers AirFree Air Purifiers — Top pick: AirFree Platinum 2000 Ozone Free Sterilizer and Air Purifier See all: AirFree Air Purifiers Alen Air Purifiers — Top pick: Alen A350 HEPA Air Purifier - FREE FedEx Shipping! See all: Alen Air Purifiers AllerAir Air Purifiers — Top pick: AllerAir 5000 Exec Air Purifier See all: AllerAir Air Purifiers Amaircare Air Purifiers — Top pick: Amaircare Portable 3000 HEPA Air Purifier See all: Amaircare Air Purifiers Austin Air Air Purifiers — Top pick: Austin Air Allergy Machine See all: Austin Air Air Purifiers Biozone Air Purifiers — Top pick: Biozone 1000 Home Air Purifier - Fast FREE FedEx Shipping! See all: Biozone Air Purifiers Cloud 9 Air Purifiers — Top pick: Cloud 9 150T Air Purifier - Fast FREE FedEx Shipping! See all: Cloud 9 Air Purifiers Hamilton Beach Air Purifiers — Top pick: See all: Hamilton Beach Air Purifiers Hunter Air Purifiers — Top pick: See all: Hunter Air Purifiers Hyundai Air Purifiers — Top pick: See all: Hyundai Air Purifiers LakeAir Air Purifiers — Top pick: See all: LakeAir Air Purifiers Neoair Air Purifiers — Top pick: See all: Neoair Air Purifiers NQ Clarifier Air Purifiers — Top pick: See all: NQ Clarifier Air Purifiers Rabbit Air Air Purifiers — Top pick: See all: Rabbit Air Air Purifiers Sunpentown Air Purifiers — Top pick: See all: Sunpentown Air Purifiers Surround Air Air Purifiers — Top pick: See all: Surround Air Air Purifiers Tiger Air Purifiers — Top pick: See all: Tiger Air Purifiers Ultra-Sun Air Purifiers — Top pick: See all: Ultra-Sun Air Purifiers Air Oasis Air Purifiers — Top pick: See all: Air Oasis Air Purifiers Top Rated 5 Stars Air Purifiers — Top pick: See all: 5 Stars Air Purifiers 4 Stars Air Purifiers — Top pick: See all: 4 Stars Air Purifiers Most Reviewed Air Purifiers — Top pick: See all: Most Reviewed Air Purifiers Price With air purifiers, as with anything else, you get what you pay for. The higher the price, the more power and the higher the quality of the filtration type. You'll also be able to add nifty features like filter warning lights, remote controls, and flashy designs, but the meat of the matter is in the filter quality and the volume of air it will treat. Under $200 Air Purifiers — The lowest price bracket gets you either top-quality filtration for small spaces or ion or ozone generators to treat larger spaces. Top pick: AirFree P1000 Air Sterilizer and Purifier - Ionic and Ozone Free Air Purifier See all: Under $200 Air Purifiers $200 to $499 Air Purifiers — Top pick: Alen A350 HEPA Air Purifier - FREE FedEx Shipping! See all: $200 to $499 Air Purifiers $500 to $999 Air Purifiers — Top pick: IQAir HealthPro Air Purifier - Fast FREE FedEx Shipping! See all: $500 to $999 Air Purifiers $1,000 and Up Air Purifiers — Top pick: See all: $1,000 and Up Air Purifiers What Do You Want to Treat? What you want to treat determines the filter type you need. The more you spend, the more filtration you'll get, both in quality and coverage area. Allergies/Asthma Air Purifiers — Allergy and asthma sufferers can get relief from pretty much any air purifier with a quality HEPA filter, an electrostatic filter, or AirFree's thermodynamic, filter-free technology. The only air purifiers we wouldn't recommend for asthma or allergies are ozone or ionic generators, both of which produce ozone -- a potentially harmful lung irritant for asthmatics, children, or the elderly. Keep in mind that with any air purifier, you get what you pay for: higher-priced HEPA models get you tighter casing for more efficiency, and higher-priced HEPA and Carbon or UV models have more media and higher-quality construction. Top pick: Austin Air Jr. Allergy Machine See all: Allergies/Asthma Air Purifiers Chemicals Air Purifiers — Folks with severe chemical sensitivities should look for high-end machines that combine HEPA and activated carbon, which "adsorbs" smoke, gases, fumes, and other noxious chemicals through chemical attraction. AllerAir's vocarb series features pounds and pounds of activated carbon specifically engineered to relieve MCS sufferers. The IQAir series is also renowned for its gas-phase media, which filters chemicals and gases as well as molds, bacterias, and bigger particles. Top pick: NQ Clarifier Standard Air Purifier - Fast FREE FedEx Shipping! See all: Chemicals Air Purifiers Dander/Pollen/Dust Air Purifiers — If all you're suffering from is dander, dust, or other allergens, you'll be just fine with a solid HEPA-based air purifier or one of AirFree's innovative thermodynamic models. Just make sure you've got a machine that's powerful enough to treat the necessary space (as measured by coverage area or CADR). Top pick: AirFree Platinum 2000 Ozone Free Sterilizer and Air Purifier See all: Dander/Pollen/Dust Air Purifiers MCS Air Purifiers — Folks with severe chemical sensitivities should look for high-end machines that combine HEPA and activated carbon, which "adsorbs" smoke, gases, fumes, and other noxious chemicals through chemical attraction. AllerAir's vocarb series features pounds and pounds of activated carbon specifically engineered to relieve MCS sufferers. The IQAir series is also renowned for its gas-phase media, which filters chemicals and gases as well as molds, bacterias, and bigger particles. Top pick: NQ Clarifier Medical Air Purifier - Fast FREE FedEx Shipping! See all: MCS Air Purifiers Mold/Bacteria Air Purifiers — For great treatment of mold and other microorganisms, we recommend any combo of HEPA and UV or the thermodynamic models in the AirFree series. Any of these will cook the little buggers enough to change their DNA and render them harmless (and much less smelly). Top pick: AirFree Platinum 2000 Ozone Free Sterilizer and Air Purifier See all: Mold/Bacteria Air Purifiers Odors Air Purifiers — To eliminate odors alone, go for a HEPA/carbon or HEPA/charcoal model or an ion or ozone generator. The latter two are generally much less expensive but much more controversial: they produce ozone, a lung irritant that will affect asthmatics, the elderly, and infants. The HEPA/carbon and HEPA/charcoal models do much more than just treat odors; they eliminate tons and tons of particles along with toxic chemicals and gases. Top pick: AllerAir 4000 DS Exec Air Purifier - Fast FREE FedEx Shipping! See all: Odors Air Purifiers Pet Odors and Dander Air Purifiers — Pretty much any air purifier will eliminate pet dander over its specified coverage area. To eliminate odors as well, go for a HEPA/carbon or HEPA/charcoal model or an ion or ozone generator. The latter two are generally much less expensive but much more controversial: they produce ozone, a lung irritant that will affect asthmatics, the elderly, and infants. The HEPA/carbon and HEPA/charcoal models do much more than just treat odors; they eliminate tons and tons of particles along with toxic chemicals and gases. Top pick: Austin Air Pet Machine Air Purifier See all: Pet Odors and Dander Air Purifiers Smoke/Gas Air Purifiers — Our favorite models for treating the odors and chemicals of cigarette smoke are air purifiers with combinations of HEPA and activated carbon or HEPA and charcoal. Electrostatic purifiers do the trick as well, but they can produce ozone, a lung irritant. One important thing to note: the AllerAir products in this category include a blend of activated carbon designed specifically to eliminate odors and chemicals from cigarette smoke. Top pick: LakeAir Excel Z Air Purifier - Fast FREE FedEx Shipping! See all: Smoke/Gas Air Purifiers Urban Pollution Air Purifiers — If you're working in, driving through, or sleeping in an environment with a lot of chemicals, you should look for high-end machines that combine HEPA and activated carbon, which "adsorbs" smoke, gases, fumes, and other noxious chemicals through chemical attraction. AllerAir's vocarb series features pounds and pounds of activated carbon specifically engineered to relieve MCS sufferers. The IQAir series is also renowned for its gas-phase media, which filters chemicals and gases as well as molds, bacterias, and bigger particles. Top pick: AllerAir 4000 Vocarb Air Purifier See all: Urban Pollution Air Purifiers Viruses Air Purifiers — Hospitals, labs, and people with weak immune systems love the combination of HEPA filtration and a UV lamp, which changes the DNA of microorganisms, bacteria, mold, and viruses to render them harmless. In residential settings, the UV light is a great way to attack mold -- especially in combination with carbon or charcoal. The brand that's made its name with this combination is NQ Clarifier, whose models are trusted by tons of labs and hospitals worldwide. Top pick: NQ Clarifier Standard Air Purifier - Fast FREE FedEx Shipping! See all: Viruses Air Purifiers VOCs Air Purifiers — VOCs (volatile organic compounds), which come from common household items like paint, varnish, carpets, glues, cleaning supplies, etc., are serious business that require serious air purifiers. So here are your options: combination HEPA/carbon models or models with the renowned IQAir technology. Our favorite air purifiers for this task are the AllerAir Vocarb models, all of which include pounds and pounds of carbon specially blended to treat these chemicals and fumes. Top pick: AllerAir 600 D Vocarb UV Air Purifier - Fast FREE FedEx Shipping! See all: VOCs Air Purifiers Where Will You Use It? You wouldn't buy a huge air purifier for your car, and you wouldn't buy a tiny unit for your welding garage, either. We've matched power and filtration types to the settings where they'll be most effective. Want an air purifier for a big hospital room? You'd want a powerful unit that combines HEPA and UV. Want a unit for your nursery? Make sure it's got HEPA and can cover about 200 sq. ft. And so on. Bedroom or Nursery Air Purifiers — There are few lungs more vulnerable than developing lungs, which is why it's a great idea to give your little one the gift of clean air from a very early age. We've selected HEPA and thermodynamic models that cover smaller spaces -- perfect for nurseries and bedrooms. We do not recommend ionic or ozone machines; they produce ozone, which can be harmful and irritating to lungs at any age. Top pick: Austin Air Baby's Breath Air Purifier See all: Bedroom or Nursery Air Purifiers Car Air Purifiers — Need a little mini-purifier for your car or desk? We've got a bunch of 'em: small enough to fit your vehicle but powerful enough to treat fumes from the busiest, most polluted roads. Top pick: NanoBreeze Car Air Purifier See all: Car Air Purifiers Entire House Air Purifiers — If you'd like to treat your whole house with one machine, choose either a central air handler, which works with HVAC systems, or a model that covers over 1,000 square feet. You can also choose to buy smaller models and put them in your most frequently used rooms, though those won't appear in this category. Top pick: Air Oasis 1000 Air Purifier - Fast FREE FedEx Shipping! See all: Entire House Air Purifiers Hospital Air Purifiers — The very most effective air purifiers, regardless of power and coverage area, are the only models trusted by hospitals and labs for their blends of elite HEPA and UV or activated carbon filters. Top pick: IQAir HealthPro Plus Air Purifier - Fast FREE FedEx Shipping! See all: Hospital Air Purifiers Industrial Setting Air Purifiers — Trying to clean a big, industrial space? You'll need one of these: big, powerful models to hook up to central air systems OR treat over 1,000 sq. ft. of space with some combination of HEPA and charcoal or UV. Caveat emptor with the BiOzone models: they're less expensive than HEPA models and clean things like particles, bacteria, molds, and the like but may put you at risk by generating ozone (a lung irritant). Top pick: Air Pura P600 Comprehensive Filtration Air Purifier - Fast FREE FedEx Shipping! See all: Industrial Setting Air Purifiers Living Room/Family Room Air Purifiers — Small bedrooms, kitchens, offices, and living rooms will be well served by these models -- especially the high-end HEPA models from Blueair, AllerAir, Cloud 9, and Neoair. Top pick: Blueair 201 HEPASilent Air Purifier See all: Living Room/Family Room Air Purifiers School or Office Air Purifiers — You're getting into some of our favorite brands in this category: Austin Air, AllerAir, Blueair, and IQAir, all highly regarded for their blends of power and efficiency. Great for larger spaces or for moderate spaces with higher ceilings, like commercial spaces, schools, and offices. Top pick: AllerAir 5000 Exec Air Purifier See all: School or Office Air Purifiers Filtration Type This is the single most important decision you need to make when choosing an air purifier; different filtration systems are best at treating different things. Read on to find your perfect filtration system... HEPA Air Purifiers — The building-block of most respected air purifiers, HEPA stands for High Efficiency Particulate Air, and its filters (when HEPA-certified) remove 99.97% of all particles as small as 0.3 microns. HEPA filters were originally developed by the Atomic Energy Commission for the purpose of removing radioactive dust particles; now we know they trap all manner of allergens, like pollen, dust, pet dander, and mold spores. As with other media, HEPA filters get more effective with more surface area; other important points include the quality of the casing (metal is better than plastic) and the tight fit of the filter within the machine. In high-end air purifiers, HEPA is used in combination with other filtration types: activated carbon or charcoal (for molds, gases, chemicals, VOCs, and odors) and/or UV (for viruses, germs, and microorganisms). One important note on HEPA filters: they must be replaced according to the manufacturer's standards (e.g. every two years) and should, where possible, be used in combination with a pre-filter, which blocks bigger particles and lengthens the life of the HEPA filter. Top pick: Austin Air Healthmate Jr. HM 200 Air Purifier See all: HEPA Air Purifiers HEPA and Carbon Air Purifiers — Machines that combine HEPA and activated carbon are top-notch models for treating allergens, asthma, molds, odors, VOCs, gases, smoke, chemicals, and bacteria. The more you pay, the more powerful the purifier, which means you'll filter more air over a bigger space more effectively. The entire AllerAir line combines HEPA and activated carbon; the more you spend, the more pounds of carbon you get, with blends specially engineered to treat things like MCS and cigarette smoke. Top pick: AllerAir 5000 Exec Air Purifier See all: HEPA and Carbon Air Purifiers HEPA and Charcoal Air Purifiers — Very similar to the HEPA/carbon combo, HEPA/charcoal filters specialize in removing allergens, particles, smoke, gas, and odors. As with carbon, the more charcoal, the more effective the filtration system. Top pick: Cloud 9 150T Air Purifier - Fast FREE FedEx Shipping! See all: HEPA and Charcoal Air Purifiers HEPA and UV Air Purifiers — Hospitals, labs, and people with weak immune systems love the combination of HEPA filtration and a UV lamp, which changes the DNA of microorganisms, bacteria, and viruses to render them harmless. In residential settings, the UV light is a great way to attack mold -- especially in combination with carbon or charcoal. The brand that's made its name with this combination is NQ Clarifier, whose models are trusted by tons of labs and hospitals worldwide. Top pick: AllerAir Air Tube Exec UV Air Purifier See all: HEPA and UV Air Purifiers Ionic Air Purifiers — Ion generators, like ozone generators, produce charged particles that cling to dust and do a good, low-maintenance, mostly silent job neutralizing things like bacteria, odors, and viruses. They're controversial, however, because they also produce ozone, which is a lung irritant and particularly troublesome for infants, asthma sufferers, and the elderly. Our favorites in this category come from Alen, which has superb filtration with minimal (or non-existent) side effects. Top pick: Alen A350 HEPA Air Purifier - FREE FedEx Shipping! See all: Ionic Air Purifiers Ozone Air Purifiers — They're generally quiet and low-maintenance and do a good job of eliminating viruses, bacteria, and odors, but ozone generators are controversial because they also produce ozone, which is a lung irritant and particularly troublesome for infants, asthma sufferers, and the elderly. Top pick: Biozone 1000 Home Air Purifier - Fast FREE FedEx Shipping! See all: Ozone Air Purifiers Thermodynamic - no filter Air Purifiers — One of the revolutionary new technologies in air purifying, thermodynamic models (the AirFree series) combine no maintenance and the ability to (literally) fry the crap out of the air%u2026if "crap" means mold, bacteria, viruses, allergens, and pet dander. They're great, filter-free solutions for medium-sized rooms; you don't have to replace anything, anytime. If you need to treat smoke or chemicals, however, you're better off with a HEPA/charcoal model. Top pick: See all: Thermodynamic - no filter Air Purifiers Electrostatic Air Purifiers — Less controversial but far more high-maintenance than ion and ozone generators, electrostatic models trap particles (and often neutralize odors) with electronic cells and collection plates that have to be cleaned frequently to stay effective. Top pick: LakeAir Excel Z Air Purifier - Fast FREE FedEx Shipping! See all: Electrostatic Air Purifiers Maximum Coverage Area How big is the space you'd like to clean? You don't need to spend a ton of money to treat your car, nursery, or bedroom, but you don't want to do half the job in a bigger room. Make sure the maximum coverage area of your air purifier roughly matches the space you need to clean; if your ceilings are higher, make sure the CADR rate can keep up, or choose a model with a larger coverage area. Under 200 sq ft Air Purifiers — Great for cars, tables, desks, nurseries, and small bedrooms, this selection features small, portable models with a variety of filter types. Our favorites in this category are from Blueair, Neoair, and Amaircare, great HEPA-quality brands whose machines do not produce ozone. Top pick: Amaircare Roomaid HEPA Air Purifier - Fast FREE FedEx Shipping! See all: Under 200 sq ft Air Purifiers 200 to 499 sq ft Air Purifiers — Small bedrooms, kitchens, offices, and living rooms will be well served by these models -- especially the high-end HEPA models from Blueair, AllerAir, Cloud 9, and Neoair. Top pick: Alen A350 HEPA Air Purifier - FREE FedEx Shipping! See all: 200 to 499 sq ft Air Purifiers 500 to 1000 sq ft Air Purifiers — Top pick: See all: 500 to 1000 sq ft Air Purifiers Over 1000 sq ft Air Purifiers — Top pick: See all: Over 1000 sq ft Air Purifiers Clean Air Delivery Very simply, Clean Air Delivery Rate (CADR) measures how fast an air purifier can clean the air in a room. Note than CADR is measured in cubic feet per minute, not square feet per minute%u2026for spaces with high ceilings, go for an air purifier with a higher CADR. Under 100 cu ft/min Air Purifiers — Smaller models for smaller spaces generate a lower volume of clean air. If you have low ceilings (8 ft. or lower) and don't have severe sensititives or pollution problems, you should be covered fine with these. Top pick: Neoair Cruiser Air Purifier See all: Under 100 cu ft/min Air Purifiers 100 to 200 cu ft/min Air Purifiers — Medium-sized spaces with ceilings under 8 ft. or smaller spaces with high ceilings will be well served by air purifiers with these CADR ratings. If your space fits that description but you have severe sensitivities, tons of pollution, or new carpet or paint fumes, a higher CADR would be preferable. Top pick: Austin Air Healthmate Jr. HM 200 Air Purifier See all: 100 to 200 cu ft/min Air Purifiers Over 200 cu ft/min Air Purifiers — For the biggest spaces and the most intense purifying, find your perfect filtration system within this category of CADR. Top pick: AllerAir Air Medic D + Exec Air Purifier - Fast FREE FedEx Shipping! See all: Over 200 cu ft/min Air Purifiers Air Changes Air changes per hour (ACH) means, simply, the number of times an air purifier can clean all the air in a certain-sized room in a given hour. Check the coverage area of an air purifier to determine the space it will treat, and then make sure the air changes will accommodate your needs. The more air changes an hour, the more consistent the cleanliness of your air. Under 5/hr Air Purifiers — If you're just going for general air cleaning, whether in a home or an office, you'll be fine with an ACH rating of 3-4. Spaces in industrial settings or with heavy smokers, lots of pets, or new paint or carpet fumes should be cleaned more than 5 times an hour; people with severe asthma or allergies will also appreciate an ACH rating over 5. Top pick: AirFree P1000 Air Sterilizer and Purifier - Ionic and Ozone Free Air Purifier See all: Under 5/hr Air Purifiers 5 to 10/hr Air Purifiers — Spaces in industrial settings or with new paint or carpet fumes should be cleaned more than 5 times an hour; people with severe asthma or allergies will also appreciate an ACH rating over 5. Top pick: Austin Air Pet Machine Air Purifier See all: 5 to 10/hr Air Purifiers Over 10/hr Air Purifiers — Spaces in industrial settings or with new paint or carpet fumes should be cleaned more than 5 times an hour; people with severe asthma or allergies will also appreciate an ACH rating over 5. For the most severely polluted places or the most sensitive people, look for the highest possible ACH rating in combination with the right type of filtration for you. Top pick: Alen A350 HEPA Air Purifier Two-Pack - FREE FedEx Shipping! See all: Over 10/hr Air Purifiers Noise Level Where will you use your air purifier? If it's someplace where noise is a factor, you'll want to consider our Silent or Quiet models. If it's someplace busy or industrial where noise is no matter, feel free to browse our powerful Loud models as well. Silent Air Purifiers — Want to clean your air of impurities and noise? Choose one of our silent models for the best in unobtrusive cleansing. Our favorites (by far) are the renowned Blueair series, which feature some of the best HEPA technology on the market. Top pick: AirFree Platinum 2000 Ozone Free Sterilizer and Air Purifier See all: Silent Air Purifiers Quiet Air Purifiers — If you can deal with a little noise, you'll find plenty of variety in our Quiet machines, which sound a bit like noise machines that help people sleep in peace. Please note that some of these may be a little loud on their highest-speed settings, which means you can still get your peace and quiet by turning the fan down -- a perfect option for smaller rooms. Top pick: IQAir HealthPro Air Purifier - Fast FREE FedEx Shipping! See all: Quiet Air Purifiers Loud Air Purifiers — At their highest settings, these models are pretty noisy, but you can still use them comfortably wherever you don't need too much quiet -- or you can set them at a quieter, lower-power level that won't produce the same coverage rate but will still treat smaller areas with comfort and ease. Top pick: See all: Loud Air Purifiers Placement You know you want cleaner air, but where are you going to put your air purifier? Some are built for cars; others fit on desks or tables; some hang on walls; some hook up to central air systems; and our biggest, most powerful models work from a dedicated space on your floor. Floor Air Purifiers — Our biggest, baddest, most powerful (sometimes loudest) models are meant for a dedicated space on your floor. Most of the heavy models have wheels or casters, which will help you move them around as needed. Top pick: Cloud 9 300T Air Purifier - Fast FREE FedEx Shipping! See all: Floor Air Purifiers Table Air Purifiers — Our table units are free-standing models that measure less than 15 in. tall. They're generally quiet, low-powered models that work well in small rooms or offices. Top pick: Amaircare Roomaid HEPA Air Purifier - Fast FREE FedEx Shipping! See all: Table Air Purifiers Wall Air Purifiers — If you don't like the idea of a big, bulky unit on your floor or table, consider one of our wall-mount models, designed to save space and clean your air at the same time. Keep in mind that most are ion or ozone generators, which produce ozone; our favorite option is the HEPA-only Rabbit Air AP-1004 Minus A2 HEPA Air Purifier. Top pick: Alen A350 HEPA Air Purifier - FREE FedEx Shipping! See all: Wall Air Purifiers Dashboard Air Purifiers — Need a little mini-purifier for your car or desk? We've got a bunch of 'em: small enough to fit your vehicle but powerful enough to treat fumes from the busiest, most polluted roads. Top pick: Neoair Cruiser Air Purifier See all: Dashboard Air Purifiers Central Air System Air Purifiers — If you'd like to just hook up your air purifier to an HVAC system to blow clean air through your entire home or workspace, browse these models. Please note that you'll need to be extremely diligent about cleaning and replacing the filters in these units because of the sheer volume of air they'll be treating. Top pick: Biozone Induct 2500 Air Purifier - Fast FREE FedEx Shipping! See all: Central Air System Air Purifiers Wheels Most air purifiers are conveniently portable. Those without wheels tend to be light enough for you to pick up and move around as needed; heavier, bulkier units usually come with casters or wheels. Only air purifiers meant to stay in one place -- like central air units -- generally come in less portable models. Wheeled Air Purifiers — If you need a powerful, heavy-duty unit that can also move from space to space, look for an air purifier with wheels or casters. This applies to many of our favorite models: the more powerful AllerAir units, the NQ Clarifier series, the IQAir series, and Austin Air machines. Top pick: See all: Wheeled Air Purifiers Without Wheels Air Purifiers — Our air purifiers without wheels generally fall into two categories: light, less powerful models for single-room cleaning, or bigger units that hook up to central air systems to purify the air in an entire house. Top pick: AirFree P1000 Air Sterilizer and Purifier - Ionic and Ozone Free Air Purifier See all: Without Wheels Air Purifiers Special Features The most frequently asked questions in the air purifiers market%u2026 Most Effective Air Purifiers — We've got the best models here: the purifiers effective enough to be trusted in hospitals and labs, and/or the purifiers powerful enough to clean 1,000 sq. ft. and up. Keep in mind that some hospital-quality purifiers won't cover the biggest spaces, and some of the most powerful models won't necessarily treat all of what ails you. The very best, most powerful machines will all cost you somewhere in the $900 and up range. Top pick: IQAir HealthPro Air Purifier - Fast FREE FedEx Shipping! See all: Most Effective Air Purifiers Easiest to Maintain Air Purifiers — HEPA filters, as great as they are, need to be replaced. If low maintenance is your bag, go for ion or ozone generators (which clean well but produce potentially harmful ozone) or, better yet, try the thermodynamic, filter-free AirFree models that treat particles, molds, bacteria, and allergens (but not smoke or chemicals). Top pick: AirFree P1000 Air Sterilizer and Purifier - Ionic and Ozone Free Air Purifier See all: Easiest to Maintain Air Purifiers Trusted by Hospitals Air Purifiers — The very most effective air purifiers, regardless of power and coverage area, are the only models trusted by hospitals and labs for their blends of elite HEPA and UV or activated carbon filters. Top pick: NQ Clarifier Medical Air Purifier - Fast FREE FedEx Shipping! See all: Trusted by Hospitals Air Purifiers Cover the Whole House Air Purifiers — If you'd like to treat your whole house with one machine, choose either a central air handler, which works with HVAC systems, or a model that covers over 1,000 square feet. You can also choose to buy smaller models and put them in your most frequently used rooms, though those won't appear in this category. Top pick: AllerAir 600 D Exec Air Purifier - Fast FREE FedEx Shipping! See all: Cover the Whole House Air Purifiers Most Attractive Models Air Purifiers — If you're worried as much about eyesores as clean lungs, check out these zippy models. They're designed to clean your air without cluttering your space! Our favorite mid-price models are the AirFree series, while IQAir features the best blend of clean lines and elite technology. Top pick: Neoair Marine Air Purifier - Fast FREE FedEx Shipping! See all: Most Attractive Models Air Purifiers Promotions Editor's Choice Air Purifiers — Top pick: AirFree P1000 Air Sterilizer and Purifier - Ionic and Ozone Free Air Purifier See all: Editor's Choice Air Purifiers Air Purifiers — Top pick: See all: Air Purifiers Top Sellers Air Purifiers — Top pick: Friedrich C-90B Electronic Air Cleaner See all: Top Sellers Air Purifiers On Sale Air Purifiers — Top pick: Air Oasis 3000 Xtreme Air Purifier - Fast FREE FedEx Shipping! See all: On Sale Air Purifiers Free Shipping Air Purifiers — Top pick: Austin Air HealthMate Plus Air Purifier See all: Free Shipping Air Purifiers