Coway Airmega Mighty AP-1512HH review

The Airmega Mighty is the purifier to compare everything else against. Coway publishes a CADR of 233 for smoke, 246 for dust and 240 for pollen, and rates it for a 361 sq ft room at 4.8 air changes per hour, which is the room size the industry uses for allergy sufferers. At $239.99 on Coway's own store that works out to about a dollar per CFM of smoke CADR. The filter stack is a pre-filter, a deodorization filter and a HEPA filter, plus what Coway calls a bipolar device. Coway rates the HEPA filter for a year and the deodorization filter for six months, so plan for two odor filter changes a year. The fan has five settings including auto and eco, and the noise range is 24 to 53 dB(A), so the low setting suits a bedroom. Power draw tops out at 77 W. The weak spots: the standard model has no app, and rooms bigger than about 360 sq ft need the Airmega 250 or a Blueair 211i Max.

Who it is for

bedrooms and home offices up to 361 sq ft

Price

$239.99 on Coway's US store.

Airmega Mighty AP-1512HH $239.99 Regular price $239.99
Quoted from the vendor pricing page on November 13, 2026.

Key features

• CADR of 233 smoke, 246 dust and 240 pollen
• Rated for 361 sq ft at 4.8 air changes per hour
• Pre-filter, deodorization filter and HEPA filter
• Noise range of 24 to 53 dB(A)
• 1, 4 and 8 hour timer with auto and eco modes

Strengths and weaknesses

• Strength: Smoke CADR of 233 for $239.99, about $1.03 per CFM
• Strength: HEPA filter is rated for 1 year
• Strength: Draws 77 W at most and has an energy-saving eco mode
• Weakness: The deodorization filter is rated for only 6 months
• Weakness: No Wi-Fi on the standard model; Coway lists the AP-1512HHS as the Wi-Fi version
• Weakness: 361 sq ft rating is smaller than the Winix 5520 and Blueair 211i Max

Key facts

• CADR (smoke/dust/pollen): 233 / 246 / 240
• Room size: 361 sq ft at 4.8 ACH
• Noise: 24 to 53 dB(A)
• Filter life: HEPA 1 year, deodorization 6 months
• Weight: 12.3 lbs

Where it ranks

Coway Airmega Mighty AP-1512HH is No. 1 in our Best Air Purifiers verdict.