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Airpura vs Austin Air vs IQAir: Which Heavy-Duty Air Purifier Is Right for You?
Airpura, Austin Air and IQAir all make heavy, long-running air purifiers. They're built for people with allergies, asthma, chemical sensitivity or smoke problems. The short version: Airpura moves the most air and offers the most targeted filter options, including heavier carbon beds and UV-C. Austin Air is the simplest to own, with one combined filter that lasts up to five years. IQAir is the particle specialist, with a smaller footprint and lower airflow.
We sell Airpura and Austin Air (not IQAir), so we've stuck to each maker's published specs below. That way you can compare them evenly.
Airpura vs Austin Air vs IQAir at a Glance
| Airpura 600 / 700 series | Austin Air HealthMate / HealthMate Plus | IQAir HealthPro Plus | |
|---|---|---|---|
| Rated room size | Up to 2,000 sq ft (600/614) or 2,500 sq ft (700/714) | Up to 1,500 sq ft | Up to 1,125 sq ft |
| Airflow | 560 CFM (600) or 635 CFM (700), free flow | 3-speed fan | 40 to 300 CFM over 6 speeds |
| Particle filter | True HEPA 99.97% at 0.3 micron. Super HEPA H14 (99.99%) on 614/714 models. HEPA Barrier on C, T and DLX models. | Medical-grade HEPA, 99.97% at 0.3 micron, 60 sq ft of media | HyperHEPA (listed by IQAir as EN 1822 H12/13) |
| Carbon | 18 lb, or 26 lb on C, T and DLX models | 15 lb carbon and zeolite. Plus adds potassium iodide-impregnated carbon. | V5-Cell: granular activated carbon and impregnated alumina (weight not published) |
| Filter changes | Separate stages: prefilter 12 months, carbon about 24 months, True/Super HEPA 3 to 5 years | One combined filter, up to 5 years | Prefilter 18 months, V5-Cell 24 months, HyperHEPA 48 months (IQAir's 10 hrs/day estimate) |
| UV-C option | Yes (UV and P series) | No | No |
| Warranty | 5 years parts, 10 years labor (residential) | 5-year mechanical, 5-year pro-rated filter | See IQAir |
Room-size ratings aren't calculated the same way by every brand. Airpura's rating is based on 2 air changes per hour with 8 ft ceilings. For allergies or smoke, many buyers size up for more air changes in the room they care about most.
Airpura: Most Airflow and the Most Filter Choices
Within each size (600 or 700), every Airpura shares the same steel housing and motor. What changes is the filter package, so you choose by the problem you want to solve:
- Everyday dust, pollen and odors: Airpura R600 or the larger R700
- Chemicals and gases: C600, with a 26 lb carbon bed
- VOCs and wildfire smoke: V600
- Germs and mold: UV600, with a UV-C lamp
- Chemical sensitivity (MCS): G600, with odor-free carbon
- Tobacco smoke: T600
Because the stages are separate, you replace the carbon, HEPA and prefilter on their own schedules instead of buying one large cartridge. The trade-off is more filters to keep track of. See the full lineup on our Airpura air purifiers page.
Austin Air: Simplest to Own
Austin Air's HealthMate line uses one 360-degree filter that combines a prefilter, a medium particle filter, carbon and zeolite, and medical-grade HEPA. You change the whole thing about every five years, so ownership is easy. The HealthMate handles everyday dust, odors and smoke. The HealthMate Plus adds potassium iodide-impregnated carbon for VOCs and formaldehyde. For bedrooms, Austin also makes the Austin Air Bedroom Machine.
The trade-off is flexibility. You can't upgrade one stage or choose UV-C, and when the filter is spent, you replace all of it. Browse all Austin Air purifiers.
IQAir: Particle Specialist
IQAir's HealthPro Plus is known for its HyperHEPA filter. IQAir also states it captures at least 99.5% of particles down to 0.003 micron. It's lighter (35 lb) and rated for smaller rooms, with a top speed of 300 CFM. Its V5-Cell gas filter handles odors and gases, but IQAir doesn't publish how much carbon it holds. Airpura and Austin Air are both built around much larger carbon beds.
What About AllerAir?
AllerAir is another deep-carbon brand that shoppers often compare with Airpura. Its AirMedic Pro 5 HD spec sheet lists a 3.5-inch carbon bed. We don't carry AllerAir, so check its current specs before you compare.
Which Should You Choose?
Choose Airpura if you want the most airflow for a large or open room, a filter package matched to a specific problem (chemicals, smoke, mold or MCS), the heaviest carbon, or UV-C.
Choose Austin Air if you want one filter that lasts up to five years and simple, proven all-around cleaning.
Choose IQAir if fine particles are your main concern, and a smaller room and gas filter fit your space.
Still deciding? Shop by room with our large room air purifiers, or by concern with activated carbon air purifiers and air purifiers for wildfire smoke. You can also call us at 512-777-0154.
Airpura vs Austin Air vs IQAir FAQs
Is Airpura better than Austin Air?
Neither is better for everyone. Airpura moves more air (560 to 635 CFM) and offers more filter configurations, including 26 lb carbon beds and UV-C. Austin Air is simpler, with one filter that lasts up to five years.
Which has more carbon, Airpura or Austin Air?
Airpura. Its standard models hold 18 lb of activated carbon, and the C, T and DLX models hold 26 lb. The Austin Air HealthMate holds 15 lb of carbon and zeolite.
Is Austin Air better than IQAir?
For chemicals, gases and odors, Austin Air's 15 lb carbon and zeolite bed is the bigger gas filter. IQAir focuses on fine-particle filtration with its HyperHEPA filter.
Where are they made?
Airpura units are made in Canada, Austin Air in the USA, and IQAir in Switzerland.
Do any of them use ozone?
None of these three is an ozone generator. Airpura lists its ozone emissions as "No". Read our ionizer vs HEPA guide for more on ozone.
Related Comparisons
Sources: Airpura product specifications, IQAir HealthPro Plus specifications, Austin Air HealthMate product specifications, and the AllerAir AirMedic Pro 5 HD spec sheet. Specs checked November 2026.