Coway Airmega 100 vs 150 vs 200M vs 250 vs 250S: Which Tower Purifier Fits Your Room?
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The short answer: The Airmega 200M is the best overall pick: its 246 CADR and 1,748 sq ft coverage handle medium rooms for $229.99, just $40.00 more than the Airmega 150. Buy the Airmega 100 if you want the smallest, lightest unit at 6.6 lb for $129.99, or step up to the Airmega 250 if you need its 249 CADR and 1,860 sq ft coverage.
- Best overall: Airmega 200M — 246 CADR and 1,748 sq ft coverage at $229.99, only $40.00 more than the Airmega 150. See price at cowaymega.com
- Best compact: Airmega 100 — At 6.6 lb and 8.7 x 15.6 x 8.7 in, it is the smallest and lightest here, and at $129.99 it is the lowest-priced model. See price at cowaymega.com
- Best premium: Airmega 250 — 249 CADR and 1,860 sq ft coverage, the highest coverage in the family, for $399.00. See price at cowaymega.com
- Best value: Airmega 150 — 153 CADR and 1,035 sq ft coverage for $189.99, $60.00 more than the Airmega 100. See price at cowaymega.com
| Product | cadr | coverage sqft | noise db | power w | filter life | weight | Price now | 90-day low | Rating | |
|---|---|---|---|---|---|---|---|---|---|---|
| Airmega 100 | 108 | 810 sq ft | 20 dB | 25 W | 1 Year | 6.6 lb | $129.99 | — | — | cowaymega.com |
| Airmega 150 | 153 | 1035 sq ft | 20 dB | 35 W | Deodorization | 12.1 lb | $189.99 | — | — | cowaymega.com |
| Airmega 200M | 246 | 1748 sq ft | 24.4 dB | 82 W | Deodorization Filter | 12.3 lb | $229.99 | — | — | cowaymega.com |
| Airmega 250 | 249 | 1860 sq ft | 22 dB | 64 W | Max2 Filter | 20.5 lb | $399.00 | — | — | cowaymega.com |
| Airmega 250S | 249 | 1860 sq ft | 22 dB | 64 W | Max2 filter | 20.5 lb | $449.00 | — | — | cowaymega.com |
Airmega 100
Pros
- Lowest current price in the Airmega 100-250 lineup at $129.99, $60 less than the Airmega 150 and $100 less than the 200M
- 810 sq ft coverage and 108 CADR in a compact 8.7 x 15.6 x 8.7 in, 6.6 lb body
- Quiet 20 dB operation and only 25 W power draw
- 3-in-1 filter with a 1-year filter life and PM 2.5 particle sensor
Cons
- 108 CADR is the lowest of the group, well under the 150's 153 and the 200M's 246
- Smallest coverage of the lineup at 810 sq ft
Who it's for: Buyers wanting the cheapest, lightest, most compact Coway tower purifier for a small-to-medium room.
Airmega 150
Pros
- CADR of 153 and 1035 sq ft coverage, above the Airmega 100's 108 CADR and 810 sq ft
- Quiet 20 dB operation, matching the Airmega 100 and lower than the 200M's 24.4 dB
- At $189.99 it costs $60.00 more than the Airmega 100 but $40.00 less than the 200M
Cons
- 35 W power draw is higher than the Airmega 100's 25 W
- 12.1 lb weight is heavier than the Airmega 100's 6.6 lb
Who it's for: Buyers wanting more CADR and coverage than the Airmega 100 while staying quiet and under $200.
Airmega 200M
Pros
- CADR of 246 and 1748 sq ft coverage, well above the Airmega 100 (108 CADR, 810 sq ft) and Airmega 150 (153 CADR, 1035 sq ft)
- At $229.99 it costs $100.00 more than the Airmega 100 but $169.01 less than the Airmega 250
- 24.4 dB noise rating keeps it close to the 20 dB of the smaller Airmega 100 and 150
- 12.3 lb weight is lighter than the 20.5 lb Airmega 250 and 250S
Cons
- 82 W power draw is more than double the Airmega 100's 25 W and the Airmega 150's 35 W
- 16.8 x 18.3 x 9.6 in footprint is larger than the Airmega 100 and Airmega 150
Who it's for: Buyers who want substantially more cleaning power than Coway's smaller tower models without stepping up to the $399+ Airmega 250 series.
Airmega 250
Pros
- CADR of 249 and 1860 sq ft coverage, the highest in the Airmega 100-250 line
- 22 dB noise rating keeps it quiet for its 64 W power draw
- Max2 Filter rated for a 1-year life
- 1-4 timer setting included
Cons
- At $399.00 it costs $169.01 more than the Airmega 200M, which has a nearly identical CADR of 246
- Weighs 20.5 lb, the heaviest in the line alongside the 250S
Who it's for: Buyers who want the largest coverage and highest CADR in Coway's newer tower line and will pay $399.00 for it.
Airmega 250S
How we chose
How we chose
We compared the five Airmega tower models on the specs that decide whether a purifier suits a room: CADR, coverage, noise, power draw, weight and current price. CADR runs from 108 on the Airmega 100 to 249 on the Airmega 250 and 250S, with the 200M at 246 and the 150 at 153. Coverage follows the same order, from 810 sq ft on the 100 up to 1,860 sq ft on the 250 and 250S, with the 200M at 1,748 sq ft and the 150 at 1,035 sq ft.
Noise and power draw separate the units too. The 100 and 150 are rated 20 dB, the 250 and 250S 22 dB, and the 200M 24.4 dB. Power draw is 25 W on the 100, 35 W on the 150, 64 W on the 250 and 250S, and 82 W on the 200M. Weight climbs from 6.6 lb on the 100 to 20.5 lb on the 250 and 250S, with the 150 at 12.1 lb and the 200M at 12.3 lb.
Price settled the rest. The 100 is $129.99, the 150 $189.99, the 200M $229.99, the 250 $399.00 and the 250S $449.00. The 200M costs $40.00 more than the 150, and the 250 costs $169.01 more than the 200M.
Who should skip these
Skip this family if you need coverage beyond 1,860 sq ft. The Airmega 250 and 250S both top out at 1,860 sq ft, so larger rooms are outside what these units are rated for.
Skip them too if a unit heavier than 20.5 lb does not suit your space. The Airmega 250 and 250S each weigh 20.5 lb, the heaviest here; the Airmega 100 is the lightest at 6.6 lb, and the 150 and 200M come in at 12.1 lb and 12.3 lb.
If your room is small, the higher prices may not be worth it. The Airmega 250 costs $269.01 more than the Airmega 100 and $169.01 more than the 200M, and the 250S costs $319.01 more than the 100 and $50.00 more than the 250. The 200M covers 1,748 sq ft for $229.99, which is $100.00 more than the 100 and $40.00 more than the 150.
How to choose the right one
Start with CADR and coverage. The Airmega 100 is rated 108 CADR for 810 sq ft, the Airmega 150 is 153 CADR for 1,035 sq ft, the Airmega 200M is 246 CADR for 1,748 sq ft, and the Airmega 250 and 250S are both 249 CADR for 1,860 sq ft. Match those figures to the room you actually need to clean, then weigh the rest.
Noise and power draw rise with capacity. The Airmega 100 runs at 20 dB and 25 W, the Airmega 150 at 20 dB and 35 W, the Airmega 200M at 24.4 dB and 82 W, and the Airmega 250 and 250S at 22 dB and 64 W. Weight climbs too, from 6.6 lb for the Airmega 100 to 20.5 lb for the Airmega 250 and 250S.
Then look at the gaps. The Airmega 150 costs $60.00 more than the Airmega 100, the Airmega 200M costs $100.00 more than the Airmega 100 and $40.00 more than the Airmega 150, and the Airmega 250 costs $169.01 more than the Airmega 200M. The Airmega 250S costs $50.00 more than the Airmega 250.
Questions readers ask
Which model is best for a small-to-medium room?
The Airmega 100 is the smallest at 8.7 x 15.6 x 8.7 in and 6.6 lb, with 810 sq ft of coverage; the Airmega 150 steps up to 1035 sq ft at 12.1 lb.
How much more do the larger models cost?
The Airmega 150 costs $60.00 more than the Airmega 100, the 200M costs $100.00 more, the 250 costs $269.01 more, and the 250S costs $319.01 more.
What is the difference between the Airmega 250 and 250S?
Both list a CADR of 249, 1860 sq ft of coverage, 22 dB, 64 W and 20.5 lb; the 250S costs $50.00 more than the 250.
How quiet are these purifiers?
The Airmega 100 and 150 are listed at 20 dB, the 250 and 250S at 22 dB, and the 200M at 24.4 dB.
How much coverage does each model offer?
The Airmega 100 covers 810 sq ft, the 150 covers 1035 sq ft, and the 200M, 250 and 250S each cover 1748 sq ft or 1860 sq ft.
Update history
- — First published
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