US catalogue
Air purifiers / Manufacturer
Compare the listed models, check each US purchase package and follow the original sources.
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A compact purifier with automatic particle sensing and a single combined replacement filter. Its 405 sq ft room claim assumes two air changes per hour, so compare that basis before choosing it for a larger room.
Purchase packages
Airmega 100 — US standard package
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A room purifier with a washable prefilter and a combined carbon/HEPA Max2 filter. Its 465-square-foot room claim uses four air changes per hour.
Purchase packages
Coway Airmega 250 — standard US unit
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A connected, dual-sided purifier supplied with two Max2 filters and two washable pre-filters. Check that replacement sets are for the 400 or 400S: the similarly named 300-series filters are a different purchase.
Purchase packages
Airmega 400S — US standard package
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A room purifier with automatic and Eco modes, a washable prefilter and a bipolar ionizing stage alongside its deodorization and HEPA filters.
Purchase packages
Coway Airmega Mighty AP-1512HH — White US unit
Use the same CADR particle type and units. A value without a named particle type stays separate from smoke, dust and pollen ratings.
A larger advertised room may assume fewer air changes per hour. Read the area and ACH together, and check ceiling-height assumptions.
Check the replacement model, recommended maintenance and purchase options. Filter subscriptions and specialty filters may be separate.