The AP-1518R is rated for 361 square feet at 4.8 air changes per hour, with smoke CADR 246.
The current Coway page and ENERGY STAR record identify AP-1518R and closely agree on the model’s smoke delivery rate.
Product file
Coway Airmega 200M is a straightforward medium-room purifier with strong CADR for its footprint, automatic and Eco modes, a washable prefilter, and appliance-style controls instead of an app.

Source-led product analysis
Choose the 200M for dependable on-device automation in a medium bedroom; skip it if you want connected controls, purely mechanical filtration, or a meaningfully different Coway platform.
The current US Airmega 200M is model AP-1518R, not a vague Mighty-family label. Coway rates it for 361 square feet at 4.8 air changes per hour with smoke CADR 246, and builds in automatic fan response, Eco mode, timer controls, a display-off option, and separate prefilter, deodorization, and particle-filter stages.
RTINGS and Consumer Reports both test the exact model, strengthening the case that its compact shape hides serious airflow. The compromise is familiarity: the 200M is extremely close to the ranked AP-1512HH platform, has no app, becomes more audible at high speed, and includes a bipolar device. Owner channels also mix long-running satisfaction with some power, motor, or service complaints.
The current Coway page and ENERGY STAR record identify AP-1518R and closely agree on the model’s smoke delivery rate.
Coway’s product page and manual document the same on-device modes, display control, and operating range.
Two independent test programs evaluate the exact 200M and support its strong medium-room performance with a high-speed noise caveat.
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