Coway makes the purifier reviewers have recommended the longest, and the 2026 Mighty2 replaces it. Here is how the rest of the lineup fits around it.
Buy the Coway Mighty2 for most rooms; it is Wirecutter’s 2026 top pick. Buy the Coway 200M if you want the classic design with no ionizer, and the Coway ProX for open plans over 650 sq ft. The original AP-1512HH is worth it only at a clear discount, since it adds an ionizer and lacks the new sensor.
| If you need | Start with | Why |
|---|---|---|
| Most rooms | Coway Mighty2 | Wirecutter’s 2026 top pick |
| No ionizer | Coway 200M | Filter-only; RTINGS’ mid-range pick |
| Open plans and smoke | Coway ProX | CR’s top extra-large performer |
| Small bedroom | Coway Airmega 100 | Lights-off sleep mode; not yet independently tested |
The Mighty2, unless the old one is much cheaper. It adds a laser sensor that reads PM1, PM2.5 and PM10, a light-sensing Sleep mode and a single once-a-year filter, and it draws 20% less power by Coway’s figure.
March 2026: the Mighty2’s launch. Coway says Wirecutter named it the 2026 top pick.Yes. Its listing names a bipolar device among its four stages. If you want to avoid ionizers entirely, the 200M uses only a pre-filter, carbon and HEPA.
Filter-only: the 200M’s listing names three stages and no ionizer.Only for big spaces. It is CR’s top extra-large performer, but it weighs about 50 pounds, has no app or remote, and CR puts running costs near $259 a year.
567 cfm: the ProX’s smoke CADR, more than twice the Mighty2’s 240.These come from brand searches on Bing and from what reviewers measured. We summarize; we don’t run our own lab.
| Model | Room at 4.8 air changes | Filters | Ionizer | Best for |
|---|---|---|---|---|
| Coway Mighty2 | About 372 sq ft | Washable pre-filter, 2-in-1 HEPA and carbon | None listed | Most rooms |
| Coway AP-1512HH | About 364 sq ft | Pre-filter, carbon, HEPA | Bipolar ionizer | Discount buys |
| Coway 200M | About 364 sq ft | Pre-filter, carbon, HEPA | None | No ionizer |
| Coway Airmega 100 | About 169 sq ft | Pre-filter, carbon, HEPA | None listed | Small bedrooms |
| Coway Airmega 150 | About 216 sq ft | One cartridge | None listed | Small rooms |
| Coway Airmega 400 | About 650 sq ft | Pre-filter, carbon, HEPA | None listed | Large rooms |
| Coway ProX | About 879 sq ft | Two full filter sets | None listed | Open plans, smoke |
Cards marked “Not yet independently tested” rely on listing data only.
Wirecutter’s 2026 top pick and HouseFresh’s choice for most people, with a laser sensor and one filter a year. Full write-up in our top 10.
you want one purifier for a bedroom, office or living room up to about 370 sq ft and plan to leave it on auto.
your space is an open plan or a big great room. The Coway ProX has more than twice the CADR.
Sources: Wirecutter, The Best Air Purifier (2026 top pick, as announced by Coway in July 2026); HouseFresh, The best air purifiers you can buy in 2026 (October 2026); Nieman Lab, Behind the scenes at Wirecutter for an epic duel of air purifiers (May 2026).
The classic box with no ionizer. RTINGS made it its mid-range pick in February 2026. Full write-up in our top 10.
you want Coway’s track record in a medium room and prefer a purifier with no ionizer at all.
you want a numeric particle readout or one filter a year. The Coway Mighty2 has both.
Sources: RTINGS, The best air purifiers (February 2026 update); Coway announcement citing Wirecutter’s long-running picks (July 2026).
CR’s top extra-large performer at 567 cfm, with two full filter sets and a 5-year warranty. Full write-up in our top 10.
you have an open floor plan over about 650 sq ft, smoky summers where you live, or shedding pets.
you need to carry it upstairs or want app control. Two Levoit Core 600S-P units are easier to move and connect to an app.
Sources: Consumer Reports, 8 Best Air Purifiers of 2026; HouseFresh, The best air purifiers you can buy in 2026.
Wirecutter’s longtime top pick. Worth it only at a real discount now that the Mighty2 exists, and it has an ionizer.
The listing rates it for 1,748 sq ft in an hour and lists four stages: a washable pre-filter, a carbon filter, a bipolar ionizer and HEPA. The air quality light can be switched off for sleep.
you find it for much less than the Mighty2 and don’t mind an ionizer.
you want to avoid ionizers. The Coway 200M is the same size class without one.
Sources: Nieman Lab, Behind the scenes at Wirecutter (the longtime top pick); Coway announcement citing Wirecutter’s picks (July 2026).
A compact unit for about 169 sq ft with a lights-off sleep mode and a night light.
The listing rates it for 405 sq ft in 30 minutes, about 169 sq ft at AHAM’s 4.8 air changes. Sleep mode switches off the lights and runs the lowest fan speed, and it has a night light.
you want Coway build quality in a small bedroom for little money.
you want tested performance. The Levoit Core 300S-P has a verified 141 cfm.
Sources: Amazon listing data.
All three filters in one cartridge for a mess-free swap, for rooms around 216 sq ft.
The listing rates it for 518 sq ft in 30 minutes, about 216 sq ft at AHAM’s 4.8 air changes, with all three filters in one cartridge and a switch for the lights.
you want a no-mess cartridge filter in a small room.
you want a verified CADR. The Levoit Core 300S-P is AHAM-verified.
Sources: Amazon listing data.
Rated for about 650 sq ft at AHAM’s 4.8 air changes, with a 5-year warranty.
The listing rates it for 3,120 sq ft in an hour, about 650 sq ft at AHAM’s 4.8 air changes, with Smart, Eco and Sleep modes and a 5-year warranty.
you want a big Coway with Sleep mode and see it priced below the ProX.
you want the newest tested model. The Coway ProX is CR’s extra-large pick.
Sources: Amazon listing data (no recent independent test found).
No. The Mighty2 uses its own Max2 filter, and compatible-filter listings warn that AP-1512N filters don’t fit the AP-1512HH.
The Coway Mighty2 for most bedrooms; the Coway Airmega 100 for a small one.
The Coway ProX. It led Consumer Reports’ extra-large class, and both filter sets include carbon.
Consumer Reports members give Coway top marks for predicted reliability and say they are highly satisfied.
The Mighty2’s Max2 filter is rated for up to a year. The AP-1512HH set pairs a 12-month HEPA with carbon filters rated for about six months each.
Not the models in our data. Consumer Reports notes the ProX has no app or remote.