Coway Airmega 200M Air Purifier: CADR, Noise, Coverage & Specs
Last verified: Aug 23, 2026
Aug 2026
Quick verdict
The Coway Airmega 200M is best suited to medium rooms where high airflow and quiet minimum operation are priorities. Its 246 CFM smoke CADR supports about 381 sq ft at approximately 4.8 air changes per hour. Buyers should separately evaluate maximum-speed noise before deciding.
Best for
- Living rooms and medium bedrooms
- Low-noise minimum settings
Consider alternatives if
- You need a verified maximum-speed noise figure
- You are planning around the manufacturer coverage claim rather than CADR-based room size
Verified strengths
- 246 CFM smoke CADR (~381 sq ft at ~4.8 ACH)
- 24 dB published minimum noise
- HEPA filtration (as published)
Verified limitations or missing information
- Maximum-speed noise is not in our sources
Coway Airmega 200M overview
The Coway Airmega 200M is a medium-room air purifier with a smoke CADR of 246 CFM. Based on our CADR-based room-size method, it is suitable for approximately 381 sq ft. It includes HEPA filtration and 24 dB minimum noise.
- Smoke CADR
- 246 CFM
- Recommended room size
- 381 sq ft
- Claimed coverage
- 1748 sq ft
- Minimum noise
- 24 dB
- Filter type
- HEPA
- Power
- 82 W
- Weight
- 12.3 lb
- Last verified
- Aug 23, 2026
Coway Airmega 200M CADR and room size
Recommended room size is about 381 sq ft (CADR × 1.55). That is approximately 4.8 air changes per hour in a room with an eight-foot ceiling. The manufacturer figure of 1748 sq ft corresponds to about 1.1 air changes per hour at the same ceiling height and is shown separately. Our recommended room size uses approximately 4.8 air changes per hour with an eight-foot ceiling. Manufacturer coverage figures may use a lower air-change rate and are shown separately.
The manufacturer coverage claim is higher than 3× CADR, so it is not used for ranking.
Coway Airmega 200M noise level
Published minimum noise is 24 dB.
Maximum-speed noise is not in our sources.
Coway Airmega 200M filtration
Published filter type: HEPA.
Replacement interval: 6-12 months.
Coway Airmega 200M smart features
4-stage filtration, Auto mode, Filter change indicator, Energy-saving eco-mode
Coway Airmega 200M specifications
- CADR (smoke)
- 246 CFM
- Recommended room size
- 381 sq ft
- Manufacturer claimed coverage
- 1748 sq ft
- Minimum noise
- 24 dB
- Filter type
- HEPA
- Filter replacement interval
- 6-12 months
- Power
- 82 W
- Weight
- 12.3 lb
About Coway air purifiers
Coway models in this catalog are compared by CADR, recommended room size, noise, and filter type.
Coway Airmega 200M comparisons
Compared with the Coway AP-1512HH, the Coway Airmega 200M has 6% higher CADR.
What is the CADR of the Coway Airmega 200M?
Smoke CADR is 246 CFM.
What room size is the Coway Airmega 200M suitable for?
About 381 sq ft at approximately 4.8 air changes per hour with an eight-foot ceiling.
How loud is the Coway Airmega 200M?
Minimum reported noise: 24 dB.
Does the Coway Airmega 200M have Wi-Fi?
No published Wi-Fi or app control in our sources.
What filter does the Coway Airmega 200M use?
HEPA.
Methodology
Specifications are compiled from manufacturer documentation, product listings and other cited sources.
How we calculate recommended room size.
Sources
All air purifiers · Coway air purifiers · Best air purifiers for allergies · Methodology