Prices, ratings and specs were checked on Amazon on October 19, 2026. Noise and power numbers come from the older page and the makers and were not retested.
Two purifiers, both near or over $1,000, both claiming to catch particles 100 times smaller than a normal HEPA filter. Fancy. One is cheaper to run and quieter. The other has filters that last for years. Here is the gap, and whether it is worth paying for.
Table of Contents
AirDoctor 5500 vs IQAir HealthPro Plus at a Glance
The AirDoctor AD5500 is $999.00 on Amazon. The IQAir HealthPro Plus XE is $1,199.99. The AirDoctor moves more air, at a rated CADR of 560 on the older page, and is quieter. The IQAir uses a Swiss-built HyperHEPA system with a bigger carbon option and filters that can last a long time. Both claim to catch particles down to 0.003 microns.
What Changed Since the Older Page
The older page compared the AD5500 with the HealthPro Plus at 450 square feet five times an hour. The IQAir is now sold as the HealthPro Plus XE with Wi-Fi and a redesigned fan, and the AirDoctor is listed at 4,172 square feet an hour. Prices were checked on October 19, 2026. The old claim that the IQAir wood design runs over $2,000 was not rechecked.
Design and Size
The two weigh about the same, 33 pounds for the AirDoctor and 35 for the IQAir. Both have casters, so they roll. The AirDoctor is a white perforated tower that takes air in from two sides and sends it out the top. The IQAir takes air in from the bottom and sends it out from four sides near the top. That means the IQAir wants to sit away from walls and corners, in the middle of the room if possible.
Airflow, Noise and Power
- Airflow: the AirDoctor handles about 868 square feet at five changes an hour, against about 450 for the IQAir. Read what CADR means for the math.
- Noise: the AirDoctor runs 30 to 50 dB. The IQAir ran 22 to 57 dB on the older model.
- Power: the AirDoctor uses 10 to 100 watts. The older IQAir used 27 to 215 watts, which is why the new fan matters. At peak, the old model could cost about twice as much to run.
Looking ahead, the IQAir and the AirDoctor are both selling on a promise of the cleanest air money can buy, and both prices are drifting up. The catch is that very few homes need 0.003-micron filtration. The extra cost buys comfort for people with severe allergies, not a visible change for everyone else.
3 Purifiers to Compare
Rechecked on Amazon on October 19, 2026. Prices, ratings and buttons are below.
Price on Amazon: $999.00 | 4.3 stars from 81 ratings (checked October 19, 2026)
The AirDoctor AD5500 is listed for whole-home and extra-large rooms. The listing says it cleans 1,043 square feet in 15 minutes and up to 4,172 square feet in an hour, with UltraHEPA filtration rated at 99.99 percent of particles at 0.003 microns. It has a 4.3 rating from 81 ratings.
Price on Amazon: $1,199.99 | 4.3 stars from 1,581 ratings (checked October 19, 2026)
The IQAir HealthPro Plus XE is the current version of the HealthPro Plus. The listing calls out HyperHEPA that captures 99.995 percent of particles down to 0.003 microns, Wi-Fi control through the AirVisual app, three smart modes and a fan that is up to three times more energy efficient than older models. It is rated for a 1,125 square foot room. It has a 4.3 rating from over 1,500 ratings.
Price on Amazon: $212.99 | 4.6 stars from 13,939 ratings (checked October 19, 2026)
The Medify MA-40 is the curveball. It is listed at a CADR of 406 and cleans 896 square feet in 30 minutes with an H13 HEPA filter. It has no HyperHEPA-level claim, and it costs a fraction of the other two. It has a 4.6 rating from nearly 14,000 ratings.
The risk to watch is the long-term bill. IQAir filters can last years, but a full set is a four-figure order when it is time. The AirDoctor pack is $374.99 a year. Both units also have extras that need watching, such as an ion setting on the AirDoctor, which can make a bit of ozone. Expect more price rises and more branded filters. Work out the five-year cost before you click.
How the Filtering Works
The AirDoctor uses two pre-filters, two carbon and VOC filters and two UltraHEPA filters, with air coming in from both sides. The IQAir uses a PreMax pre-filter, a granulated carbon filter, a chemisorption pellet filter and a HyperHEPA filter. For a lineup of filter types, read air purifier filter types explained.
Both brands say they trap particles down to 0.003 microns, which is far smaller than pollen, dust and dander. A filter traps particles. It does not kill viruses or bacteria on its own, which the older page implied.
Filter Life and Cost
The AirDoctor needs a new set every year. The 1-year pack, with 4 carbon filters and 2 UltraHEPA filters, is $374.99 on Amazon. The IQAir lasts longer: the HyperHEPA filter is $199.99 and the V5-Cell gas filter is $99.99. IQAir claims the HyperHEPA can last for years, depending on use. A cheaper unit like the Medify MA-40 uses a filter set that costs far less. See the air purifier filter replacement cost guide.
Features
The AirDoctor has an auto mode with a particle sensor and six fan speeds. The XE version of the IQAir adds Wi-Fi, an app and smart modes, and it keeps the filter-life countdown and the weekly timer the older model had. If you want app control on an AirDoctor, you need the smart-app version, which is listed at $1,049.00.
Where to Put Each One
The AirDoctor can sit in a corner or against a wall, as long as it has a few inches of clearance, because its intake is on the sides. The IQAir pulls air up from the bottom and blows it out near the top, so it does its best work away from walls, in the open. Whichever you pick, keep the intake clear of curtains and furniture, and keep the cord out of the walking path.
Both are heavy enough that they will stay put once they are placed. Pick a spot you like, and leave the machine there.
Energy and Running Cost
The older page said the AirDoctor can save up to $100 a year in power compared with the older IQAir if both run flat out. That is a stretch for most homes. Most people run these on a low or medium setting, where the difference is small. The gap is real on the highest speed, where the older IQAir drew 215 watts against 100 for the AirDoctor. The XE has a more efficient fan, which narrows the difference.
Which Should You Buy?
Buy the AirDoctor if you want strong airflow, a quieter machine and a lower yearly electric bill. Buy the IQAir if you want long-life filters and the heavy gas filtration. For most households, the Medify is enough. The premium pair is for people with severe allergies, chemical sensitivities or a very large space.
FAQ
Which cleans a bigger room, the AirDoctor 5500 or the IQAir HealthPro Plus?
The AirDoctor, at about 868 square feet at five changes an hour, against about 450 square feet for the older IQAir.
Which uses less power?
The AirDoctor, at up to 100 watts. The older IQAir ran up to 215 watts. The XE has a more efficient fan.
Which has longer filter life?
The IQAir. The AirDoctor filters are replaced about once a year.
Do they kill viruses?
No. They trap particles on filters.
Final Word
AirDoctor for airflow and quiet. IQAir for filter life and gas control. Medify if you want most of the performance for a lot less. Choose with your wallet and your nose.
What happens next: expect both makers to push Wi-Fi models and filter subscriptions. If an app is part of the deal, make sure the filters still work when the app does not.
Related Guides
Keep going with AirDoctor 5500 review and AirDoctor 5500 vs Rabbit Air A3.
