Coway Airmega 50 review
Compact, quiet and sensibly priced, the Airmega 50 is an excellent choice for bedrooms, nurseries and smaller home offices where full-size purifier performance is unnecessary.
£79.99 direct from Amazon UK at time of writing
Our verdict
Our Best Budget pick. The Airmega 50 is a small, quiet purifier with automatic operation, aimed squarely at bedrooms and other modest rooms where a large machine would be wasted.
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Who it suits
- Bedrooms, nurseries and small home offices
- Buyers who want automatic operation at a low price
- Rooms where a full-size purifier would dominate the space
- People prioritising quiet running over maximum airflow
Room size and airflow
Coway states coverage of up to 31 m² alongside a CADR of 120.1 m³/h. That coverage figure assumes Coway's own air-change assumptions, so it should not be compared directly with another brand's square-metre claim — the CADR is the number to compare.
Filtration
A pre-filter captures larger particles and protects the main filter, while the combined filtration and deodorisation stage handles fine particles and everyday household odours.
Noise and everyday use
Coway states a sleep mode from 18.4 dB, which is among the quietest figures on this list and makes the Airmega 50 a sensible bedside or nursery option.
Running and ownership costs
Power draw is low and the small format keeps running costs modest, but the compact filter will need replacing on Coway's published schedule to maintain performance.
Full specifications
- CADR
- 120.1 m³/h (manufacturer stated)
- Room coverage
- Up to 31 m² (Coway methodology)
- Sleep mode
- From 18.4 dB
- Auto mode
- Yes, with air-quality sensor
- Dimensions
- 17 x 17 x 32 cm
- Filtration
- Pre-filter plus filtration and deodorisation
Specifications as published by the manufacturer. Coverage figures use each manufacturer's own air-change assumptions and are not directly comparable between brands.
Strengths
- Very small footprint for a purifier with automatic operation
- 18.4 dB sleep mode is genuinely quiet for overnight use
- Low purchase price relative to smart premium models
Considerations
- 120.1 m³/h CADR is not enough for large or open-plan rooms
- No app control
- Small filters mean regular replacement in dusty homes
Our view
We recommend the Airmega 50 where the priority is quiet, automatic purification in a small room at the lowest sensible price rather than headline airflow.
Alternatives worth comparing
BEST FOR BEDROOMS
Blueair Blue Max 3250i
Very quiet at its lowest setting, compact enough for a bedroom and considerably more powerful than many small-room purifiers, with smart monitoring and particle-plus-carbon filtration.
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BEST COMPACT SMART
Xiaomi Smart Air Purifier 4 Compact
A small-footprint purifier with considerably more capability than its size suggests, combining 230m³/h CADR, smart controls and a very quiet sleep mode.
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