Several picks on the older page are unavailable or have no Amazon listing. Current prices were checked on Amazon on October 16, 2026. Room sizes and CADR figures come from the listings and the older page and were not retested. Health claims were removed.
Allergies come down to the right filter and enough airflow for the room. Here is how to size one, what changed since the older list and four picks to buy.
Table of Contents
What Changed Since the Older Page
As of October 16, 2026, the Medify MA-112 ($594.99), the PureZone ($99.99) and the Afloia Kilo ($59.99) from the old list can be bought on Amazon. The Air + Health Skye is $324.99 but has a 3.8 rating from 88 ratings. The Molekule Air Pro and the hOmeLabs True HEPA link show as unavailable, and the AirDoctor 5500 is sold through the AirDoctor store. The Medify MA-40 was not rechecked.
What Triggers Allergies and What Stops Them
Most indoor allergy triggers are large for a particle: pollen grains run from about 10 to 100 microns, mold spores 3 to 40 and dust mite waste 10 to 40. Pet dander runs from about 2 to 10. A true HEPA filter traps 99.97 percent of particles at 0.3 microns, so it catches all of them with a wide margin. The harder part is moving enough air. A fan too weak for the room never brings the air back through the filter often enough. Read what CADR means for the number to check.
Airflow Math for an Allergy Room
The older page called a rating above 350 cubic meters an hour excellent. That is about 206 CFM, which fits roughly 309 square feet at five air changes an hour. The Core 300-P at 167 CFM for pollen fits about 250 square feet. For a larger room, double up or move to the Coway Mighty. See how to choose the right size air purifier.
Checking the Old Claims
Two claims on the older page do not hold up. A purifier cannot treat or cure the flu, and medical grade is a marketing word with no legal standard for home units. The Medify MA-112 was listed on the older page for 5,000 square feet and a CADR of 560 CFM, while the Amazon listing says 5,948 square feet in an hour. At 560 CFM and an 8 foot ceiling that is about 4,200 square feet at one air change an hour, and 840 at five. Plan around the 840 for allergies.
Looking ahead, allergy shoppers are being sold the word medical more often than the number that matters. The older page called the AirDoctor 5500 filter medical quality and said it could treat the flu, and it called a Molekule a leap beyond HEPA. The Molekule Air Pro is now unavailable on Amazon with a 3.7 rating, and the AirDoctor 5500 has no Amazon listing that could be found. The catch is that health claims on a purifier page are not tested by the page.
4 Air Purifiers for Allergies
Prices and ratings were checked on Amazon on October 16, 2026.
Price on Amazon: $89.99 | 4.7 stars from 109,074 ratings (checked October 16, 2026)
The Levoit Core 300-P is listed with a CADR of 143 for smoke, 153 for dust and 167 for pollen. It has a 4.7 rating from over 109,000 ratings.
Price on Amazon: $229.99 | 4.6 stars from 29,229 ratings (checked October 16, 2026)
The Coway Mighty AP-1512HH is listed for up to 1,748 square feet with an air quality monitor, auto and eco modes and a 3-year warranty. It has a 4.6 rating from over 29,000 ratings.
Price on Amazon: $99.99 | 4.6 stars from 4,830 ratings (checked October 16, 2026)
The Pure Enrichment PureZone is a 3-in-1 purifier with a carbon pre-filter and a true HEPA filter for small rooms. It has a 4.6 rating from over 4,800 ratings.
Price on Amazon: $594.99 | 4.6 stars from 13,937 ratings (checked October 16, 2026)
The Medify MA-112 is listed for 5,948 square feet in an hour with a HEPA filter and quiet removal to 0.3 microns. It has a 4.6 rating from over 13,900 ratings.
The risk to watch is the ionizer. The older page was right on one point: ionizing purifiers can make allergies worse, because some produce ozone, a lung irritant. Expect more models to hide an ion mode behind a friendly name. Keep it off, and buy on the CADR and a true HEPA filter instead.
Features That Help
- True HEPA. Look for 99.97 percent at 0.3 microns. H13 is fine.
- A CADR for pollen and dust. Pick the number, not the square feet.
- No ion mode. Or keep it off.
- Filter price. See the air purifier filter replacement cost guide.
Which to Buy
For one bedroom, the Levoit Core 300 is the easy first pick. For a living room, the Coway Mighty is better. Keep windows shut on high pollen days, and run the unit on a middle speed all day.
FAQ
Do air purifiers help with allergies?
Yes, a true HEPA unit with enough airflow lowers airborne pollen, dander and dust.
Can an air purifier make allergies worse?
An ionizer or ozone-making unit can. Keep any ion setting off.
What CADR is good for allergies?
A CADR of about 206 CFM, or 350 cubic meters an hour, fits roughly 309 square feet at five air changes an hour.
Is the Molekule Air Pro still sold on Amazon?
It shows as currently unavailable on Amazon as of October 16, 2026, with a 3.7 rating from 123 ratings.
Final Word
Buy a true HEPA unit sized to the room, keep the ion setting off and ignore health claims. A tested tower will do more than a famous name.
What happens next: expect more allergy lists to lean on app control and air quality lights. Those help you run the unit, but the filter and the airflow do the work. A tested mid-price tower with a steady filter supply will beat a premium name with a sold-out filter.
Related Guides
Keep going with how to choose the right size air purifier, what CADR means, air purifier filter replacement cost guide, Levoit Core 300 review, Coway Mighty review and the one spec that matters for allergies.
